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Cisco 2600 Series Multiservice Platforms

Cisco Modular Access Router Cable Specifications

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Cisco Modular Access Router Cable Specifications

Table Of Contents

Cisco Modular Access Router Cable Specifications

Safety Warnings

Console and Auxiliary Port Signals and Pinouts

Console Port Signals and Pinouts

Auxiliary Port Signals and Pinouts

Ethernet Cable Pinouts

Ethernet AUI Cable Pinouts

10BASE-T Connector Pinouts

Fast Ethernet Connector Pinouts

Token Ring Port Pinouts

Token Ring STP Connector Pinouts

Token Ring UTP Connector Pinouts

ISDN BRI Interface

ISDN BRI Connections

ISDN BRI Pinouts

CT1/PRI Pinouts

CT1/PRI-CSU Pinouts

CE1/PRI Interface

CE1/PRI Cables

CE1/PRI Pinouts

56/64-kbps DSU/CSU Signals and Pinouts

T1/E1 Trunk and Digital Voice Port Pinouts (RJ-48)

Analog Voice RJ-21 Pinouts

Serial Connection Signals and Pinouts

Types of Serial Cables

Connecting the WIC to the Network

EIA/TIA-232 Interface

EIA/TIA-232 Connections

EIA/TIA-232 Serial Cable Assembly

EIA/TIA-449 Interface

EIA/TIA-449 Connections

EIA/TIA-449 Serial Cable Assembly

V.35 Interface

V.35 Connections

V.35 Serial Cable Assembly

X.21 Interface

X.21 Connections

X.21 Serial Cable Assembly

EIA-530 Interface

EIA-530 Connections

EIA-530 Serial Cable Assembly

Smart Serial Connection Signals and Pinouts

EIA/TIA-232 Smart Serial Cable Assembly

EIA/TIA-449 Smart Serial Cable Assembly

X.21 Smart Serial Cable Assembly

V.35 Smart Serial Cable Assembly

EIA-530 Smart Serial Cable Assembly

Octopus Cable Connection Signals and Pinouts

4-Port RS-232 Cable Assembly

8-Port RS-232 Cable Assembly


Cisco Modular Access Router Cable Specifications


This document provides cable specifications for Cisco 1800 series, Cisco 2600 series, Cisco 2800 series, Cisco 3600 series, Cisco 3700 series, and Cisco 3800 series routers.

Use this document in conjunction with the following publications:

Cisco 1800 series hardware installation documentation

Cisco 2600 Series Hardware Installation Guide

Cisco 2800 series hardware installation documentation

Cisco 3600 Series Hardware Installation Guide

Cisco 3700 Series Hardware Installation Guide

Cisco 3800 series hardware installation documentation

Cisco Network Modules Hardware Installation Guide

Cisco Interface Cards Hardware Installation Guide

This document includes the following sections:

Safety Warnings

Console and Auxiliary Port Signals and Pinouts

Ethernet Cable Pinouts

Fast Ethernet Connector Pinouts

Token Ring Port Pinouts

ISDN BRI Interface

CT1/PRI Pinouts

CT1/PRI-CSU Pinouts

CE1/PRI Interface

56/64-kbps DSU/CSU Signals and Pinouts

T1/E1 Trunk and Digital Voice Port Pinouts (RJ-48)

Analog Voice RJ-21 Pinouts

Serial Connection Signals and Pinouts

Smart Serial Connection Signals and Pinouts

Octopus Cable Connection Signals and Pinouts


Note All pins not listed in the tables in this document are not connected.


If you prefer to order cables, see your router installation guide.

Safety Warnings

Safety warnings appear throughout this publication in procedures that, if performed incorrectly, may harm you. A warning symbol precedes each warning statement. To see translations of the warnings that appear in this publication, see the Regulatory Compliance and Safety Information document that accompanies your router.

Warning


IMPORTANT SAFETY INSTRUCTIONS

This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. Use the statement number provided at the end of each warning to locate its translation in the translated safety warnings that accompanied this device. Statement 1071

SAVE THESE INSTRUCTIONS

Waarschuwing

BELANGRIJKE VEILIGHEIDSINSTRUCTIES

Dit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die lichamelijk letsel kan veroorzaken. Voordat u aan enige apparatuur gaat werken, dient u zich bewust te zijn van de bij elektrische schakelingen betrokken risico's en dient u op de hoogte te zijn van de standaard praktijken om ongelukken te voorkomen. Gebruik het nummer van de verklaring onderaan de waarschuwing als u een vertaling van de waarschuwing die bij het apparaat wordt geleverd, wilt raadplegen.

BEWAAR DEZE INSTRUCTIES

Varoitus

TÄRKEITÄ TURVALLISUUSOHJEITA

Tämä varoitusmerkki merkitsee vaaraa. Tilanne voi aiheuttaa ruumiillisia vammoja. Ennen kuin käsittelet laitteistoa, huomioi sähköpiirien käsittelemiseen liittyvät riskit ja tutustu onnettomuuksien yleisiin ehkäisytapoihin. Turvallisuusvaroitusten käännökset löytyvät laitteen mukana toimitettujen käännettyjen turvallisuusvaroitusten joukosta varoitusten lopussa näkyvien lausuntonumeroiden avulla.

SÄILYTÄ NÄMÄ OHJEET

Attention

IMPORTANTES INFORMATIONS DE SÉCURITÉ

Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une situation pouvant entraîner des blessures ou des dommages corporels. Avant de travailler sur un équipement, soyez conscient des dangers liés aux circuits électriques et familiarisez-vous avec les procédures couramment utilisées pour éviter les accidents. Pour prendre connaissance des traductions des avertissements figurant dans les consignes de sécurité traduites qui accompagnent cet appareil, référez-vous au numéro de l'instruction situé à la fin de chaque avertissement.

CONSERVEZ CES INFORMATIONS

Warnung

WICHTIGE SICHERHEITSHINWEISE

Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu Verletzungen führen kann. Machen Sie sich vor der Arbeit mit Geräten mit den Gefahren elektrischer Schaltungen und den üblichen Verfahren zur Vorbeugung vor Unfällen vertraut. Suchen Sie mit der am Ende jeder Warnung angegebenen Anweisungsnummer nach der jeweiligen Übersetzung in den übersetzten Sicherheitshinweisen, die zusammen mit diesem Gerät ausgeliefert wurden.

BEWAHREN SIE DIESE HINWEISE GUT AUF.

Avvertenza

IMPORTANTI ISTRUZIONI SULLA SICUREZZA

Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle persone. Prima di intervenire su qualsiasi apparecchiatura, occorre essere al corrente dei pericoli relativi ai circuiti elettrici e conoscere le procedure standard per la prevenzione di incidenti. Utilizzare il numero di istruzione presente alla fine di ciascuna avvertenza per individuare le traduzioni delle avvertenze riportate in questo documento.

CONSERVARE QUESTE ISTRUZIONI

Advarsel

VIKTIGE SIKKERHETSINSTRUKSJONER

Dette advarselssymbolet betyr fare. Du er i en situasjon som kan føre til skade på person. Før du begynner å arbeide med noe av utstyret, må du være oppmerksom på farene forbundet med elektriske kretser, og kjenne til standardprosedyrer for å forhindre ulykker. Bruk nummeret i slutten av hver advarsel for å finne oversettelsen i de oversatte sikkerhetsadvarslene som fulgte med denne enheten.

TA VARE PÅ DISSE INSTRUKSJONENE

Aviso

INSTRUÇÕES IMPORTANTES DE SEGURANÇA

Este símbolo de aviso significa perigo. Você está em uma situação que poderá ser causadora de lesões corporais. Antes de iniciar a utilização de qualquer equipamento, tenha conhecimento dos perigos envolvidos no manuseio de circuitos elétricos e familiarize-se com as práticas habituais de prevenção de acidentes. Utilize o número da instrução fornecido ao final de cada aviso para localizar sua tradução nos avisos de segurança traduzidos que acompanham este dispositivo.

GUARDE ESTAS INSTRUÇÕES

¡Advertencia!

INSTRUCCIONES IMPORTANTES DE SEGURIDAD

Este símbolo de aviso indica peligro. Existe riesgo para su integridad física. Antes de manipular cualquier equipo, considere los riesgos de la corriente eléctrica y familiarícese con los procedimientos estándar de prevención de accidentes. Al final de cada advertencia encontrará el número que le ayudará a encontrar el texto traducido en el apartado de traducciones que acompaña a este dispositivo.

GUARDE ESTAS INSTRUCCIONES

Varning!

VIKTIGA SÄKERHETSANVISNINGAR

Denna varningssignal signalerar fara. Du befinner dig i en situation som kan leda till personskada. Innan du utför arbete på någon utrustning måste du vara medveten om farorna med elkretsar och känna till vanliga förfaranden för att förebygga olyckor. Använd det nummer som finns i slutet av varje varning för att hitta dess översättning i de översatta säkerhetsvarningar som medföljer denna anordning.

SPARA DESSA ANVISNINGAR

Aviso

INSTRUÇÕES IMPORTANTES DE SEGURANÇA

Este símbolo de aviso significa perigo. Você se encontra em uma situação em que há risco de lesões corporais. Antes de trabalhar com qualquer equipamento, esteja ciente dos riscos que envolvem os circuitos elétricos e familiarize-se com as práticas padrão de prevenção de acidentes. Use o número da declaração fornecido ao final de cada aviso para localizar sua tradução nos avisos de segurança traduzidos que acompanham o dispositivo.

GUARDE ESTAS INSTRUÇÕES

Advarsel

VIGTIGE SIKKERHEDSANVISNINGER

Dette advarselssymbol betyder fare. Du befinder dig i en situation med risiko for legemesbeskadigelse. Før du begynder arbejde på udstyr, skal du være opmærksom på de involverede risici, der er ved elektriske kredsløb, og du skal sætte dig ind i standardprocedurer til undgåelse af ulykker. Brug erklæringsnummeret efter hver advarsel for at finde oversættelsen i de oversatte advarsler, der fulgte med denne enhed.

GEM DISSE ANVISNINGER

 



Console and Auxiliary Port Signals and Pinouts

Your router comes with a kit that contains the cable and adapters you need to connect a console terminal (an ASCII terminal or PC running terminal emulation software) or modem to your router.

Cisco 1800 series routers, and the Cisco 2801 router, come with an accessory kit that includes the following items:

RJ-45-to-DB-9 cable

DB-9-to-DB-25 modem adapter

All other routers in the Cisco 2800 series come with an accessory kit that contains the following:

RJ-45-to-DB-9 console cable

RJ-45-to-DB-25 modem cable

For console and modem connections on Cisco 1800 and Cisco 2800 series routers, see the Cable Connection Procedures document within the Cisco 1800 series hardware installation documentation or within the Cisco 2800 series hardware installation documentation.

Cisco 2600, Cisco 3600, Cisco 3700 and Cisco 3800 series routers come with a console and auxiliary cable kit that includes the following items:

RJ-45-to-RJ-45 rollover cable

RJ-45-to-DB-9 female DTE adapter (labeled TERMINAL)

RJ-45-to-DB-25 female DTE adapter (labeled TERMINAL)

RJ-45-to-DB-25 male DCE adapter (labeled MODEM)

For console connections on Cisco 2600, Cisco 3600, Cisco 3700, or Cisco 3800 series routers, proceed to the "Console Port Signals and Pinouts" section; for modem connections, proceed to the "Auxiliary Port Signals and Pinouts" section.

Console Port Signals and Pinouts

Use the thin, flat, RJ-45-to-RJ-45 rollover cable and RJ-45-to-DB-9 female DTE adapter (labeled TERMINAL) to connect the console port to a PC running terminal emulation software. Figure 1 shows how to connect the console port to a PC. Table 1 lists the pinouts for the asynchronous serial console port, the RJ-45-to-RJ-45 rollover cable, and the RJ-45-to-DB-9 female DTE adapter (labeled TERMINAL).

Figure 1 Connecting the Console Port to a PC

Table 1 Console Port Signaling and Cabling Using a DB-9 Adapter 

Console
Port (DTE)
RJ-45-to-RJ-45
Rollover Cable
 
RJ-45-to-DB-9
Terminal Adapter (connected to Rollover Cable)
Console
Device
Signal
RJ-45 Pin
RJ-45 Pin
DB-9 Pin
Signal

RTS

11

8

8

CTS

DTR

2

7

6

DSR

TxD

3

6

2

RxD

GND

4

5

5

GND

GND

5

4

5

GND

RxD

6

3

3

TxD

DSR

7

2

4

DTR

CTS

81

1

7

RTS

1 Pin 1 is connected internally to pin 8.


Table 2 lists the pinouts for the asynchronous serial console port, the RJ-45-to-RJ-45 rollover cable, and the RJ-45-to-DB-25 female DTE adapter (labeled TERMINAL).

Table 2 Console Port Signaling and Cabling Using a DB-25 Adapter 

Console
Port (DTE) 1
RJ-45-to-RJ-45
Rollover Cable
RJ-45-to-DB-25
Terminal Adapter
Console
Device
Signal
RJ-45 Pin
RJ-45 Pin
DB-25 Pin
Signal

RTS

12

8

5

CTS

DTR

2

7

6

DSR

TxD

3

6

3

RxD

GND

4

5

7

GND

GND

5

4

7

GND

RxD

6

3

2

TxD

DSR

7

2

20

DTR

CTS

82

1

4

RTS

1 You can use the same cabling to connect a console to the auxiliary port.

2 Pin 1 is connected internally to pin 8.


Auxiliary Port Signals and Pinouts

Table 3 lists the pinouts for the asynchronous serial auxiliary port, the RJ-45-to-RJ-45 rollover cable, and the RJ-45-to-DB-25 male DCE adapter (labeled MODEM).

Table 3 Auxiliary Port Signaling and Cabling Using a DB-25 Adapter 

Auxiliary
Port (DTE)
RJ-45-to-RJ-45
Roll-Over Cable
RJ-45-to-DB-25
Modem Adapter
Modem
Signal
RJ-45 Pin
RJ-45 Pin
DB-25 Pin
Signal

RTS

11

8

4

RTS

DTR

2

7

20

DTR

TxD

3

6

2

TxD

GND

4

5

7

GND

GND

5

4

7

GND

RxD

6

3

3

RxD

DSR

7

2

8

DCD

CTS

81

1

5

CTS

1 Pin 1 is connected internally to pin 8.


You can identify a rollover cable by comparing the modular plugs at the two ends of the cable. When you hold the plugs side by side, with the tab at the back, the wire connected to the pin on the outside of the left plug should be the same color as the wire connected to the pin on the outside of the right plug. (See Figure 2.) If you purchased your cable from Cisco Systems, pin 1 is white on one connector, and pin 8 is white on the other (a rollover cable connects pins 1 and 8, 2 and 7, 3 and 6, and 4 and 5).

Figure 2 Identifying a Rollover Cable

Ethernet Cable Pinouts

This section describes the following:

Ethernet AUI Cable Pinouts

10BASE-T Connector Pinouts

Ethernet AUI Cable Pinouts

Figure 3 shows the Ethernet (AUI) cable assembly, and Table 4 lists the pinouts.

Figure 3 Ethernet (AUI) Cable Assembly

Table 4 Ethernet (AUI) Pinouts 

Pin
Ethernet Circuit
Signal Name

3

DO-A

Data Out Circuit A

10

DO-B

Data Out Circuit B

11

DO-S

Data Out Circuit Shield

5

DI-A

Data In Circuit A

12

DI-B

Data In Circuit B

4

DI-S

Data In Circuit Shield

7

CO-A

Control Out Circuit A (not connected)

15

CO-B

Control Out Circuit B (not connected)

8

CO-S

Control Out Circuit Shield (not connected)

2

CI-A

Control In Circuit A

9

CI-B

Control In Circuit B

1

CI-S

Control In Circuit Shield

6

VC

Voltage Common

13

VP

Voltage Plus

14

VS

Voltage Shield (L25 and M25)

Shell

PG

Protective Ground


10BASE-T Connector Pinouts

Figure 4 shows the 10BASE-T connector (RJ-45), and Table 5 lists its pinouts.

Figure 4 10BASE-T Connector (RJ-45)

Table 5 10BASE-T Connector (RJ-45) Pinouts 

Pin 1
Description

1

TX+

2

TX-

3

RX+

4

5

6

RX-

7

8

1 Any pin not described is not connected.


Fast Ethernet Connector Pinouts

This section illustrates the Fast Ethernet 100BASE-TX (RJ-45) connector and lists its pinouts and signal descriptions.

Figure 5 shows the 100BASE-TX RJ-45 connector, and Table 6 lists its pinouts. The 1-port Fast Ethernet network module RJ-45 port actively terminates wire pair 4 and 5 and wire pair 7 and 8. Common-mode termination reduces electromagnetic interference (EMI) and susceptibility to common-mode sources.

Figure 5 100BaseTX RJ-45 Connector

Table 6 RJ-45 Connector Pinout

Pin
Signal

1

TX+

2

TX-

3

RX+

6

RX-


Token Ring Port Pinouts

The 1E1R 2-slot module provides both UTP and STP Token Ring connections described in these sections:

Token Ring STP Connector Pinouts

Token Ring UTP Connector Pinouts

The IEEE has established Token Ring as standard IEEE 802.5. The distance limitations for the IEEE 802.5 specification indicate a maximum segment distance of 328 feet (100 meters) for UTP cabling. The distance limitation is 1,640 feet (500 meters) for STP cabling.


Note To ensure agency compliance with FCC Class B electromagnetic emissions requirements (EMI), make sure that you use the shielded RJ-45 Token Ring cable when connecting your router to the Token Ring network.


Token Ring can operate at two different ring speeds: 4 and 16 Mbps. All devices on the ring must use the same operating speed.

Only one Token Ring port can be used at a time. The module will automatically detect which port, STP or UTP, is in use. Use the provided Token Ring cable to connect the router to a switch.

Token Ring STP Connector Pinouts

Table 7 shows the Token Ring STP port pinouts used by the 1E1R 2-slot module.

Table 7 Token Ring STP Port (DB-9) Pinouts 

9-Pin
Signal Name

1

RX-

2

Ground

3

+5 Volt, fused

4

Ground

5

TX-

6

+RX

7

Ground

8

Ground

9

+TX


Token Ring UTP Connector Pinouts

Table 8 shows the Token Ring UTP port pinouts used by the 1E1R 2-slot module.

Table 8 Token Ring UTP Port (DB-9) Pinouts 

RJ-45 Pins
Signal

1

GND

2

GND

3

TX

4

RX

5

TX

6

RX

7

GND

8


ISDN BRI Interface

This section contains the following topics:

ISDN BRI Connections

ISDN BRI Pinouts


Warning Network hazardous voltages are present in the BRI, fractional T1/T1, and switched 56 cables. If you detach the cable, detach the end away from the router first to avoid possible electric shock. Network hazardous voltages also are present on the system card in the area of the BRI port (RJ-45 connector), fractional T1/T1 port (RJ-48C connector), and switched port (RJ-11 or RJ-48S connector), regardless of when power is turned OFF. Statement 59


ISDN BRI Connections


Warning The ISDN connection is regarded as a source of voltage that should be inaccessible to user contact. Do not attempt to tamper with or open any public telephone operator (PTO)-provided equipment or connection hardware. Any hardwired connection (other than by a nonremovable, connect-one-time-only plug) must be made only by PTO staff or suitably trained engineers. Statement 23


Use a BRI cable (not included) to connect BRI ports on WAN interface cards (WICs) or on high speed WICs (HWICs) directly to an ISDN. Table 9 lists the specifications for ISDN BRI cables.

Table 9 ISDN BRI Cable Specifications

Specification
High-Capacitance Cable
Low-Capacitance Cable

Resistance (at 96 kHz)

160 ohms/km

160 ohms/km

Capacitance (at 1 kHz)

120 nF1 /km

30 nF/km

Impedance (at 96 kHz)

75 ohms

150 ohms

Wire diameter

0.024 in (0.6 mm)

0.024 in (0.6 mm)

Distance limitation

32.8 ft (10 m)

32.8 ft (10 m)

1 nF = nanoFarad


ISDN BRI Pinouts

Table 10 lists the connector signals and pinouts for an ISDN BRI S/T port. Table 11 lists the connector signals and pinouts for the ISDN BRI U port.


Caution To prevent damage to the system, make certain you connect the BRI cable to the BRI connector only and not to any other RJ-45 connector.

Table 10 ISDN BRI S/T Port Signals and Pinouts (RJ-45)

8-Pin 1
TE 2
NT 3
Polarity

3

TX

RX

+

4

RX

TX

+

5

RX

TX

6

TX

RX

1 Pins 1, 2, 7, and 8 are not used.

2 TE refers to terminal terminating layer 1 aspects of TE1, TA, and NT functional groups (this applies to the ISDN BRI S/T WIC).

3 NT refers to network terminating layer 1 aspects of NT1 and NT2 functional groups.


Table 11 ISDN BRI U Port Signals and Pinouts (RJ-45)

8-Pin 1
Function

3

No connection

4

Signal—Tip or Ring

5

Signal—Tip or Ring

6

No connection

1 Pins 1, 2, 7, and 8 are not used.


CT1/PRI Pinouts

Two standard T1 serial cables are available for the CT1/PRI module: null modem and straight-through. A straight-through cable connects the router to an external CSU. Null modem cables are used for back-to-back operation and testing.

The T1 interface cable has two 15-pin DB connectors at each end to connect the CT1/PRI module with the external T1 CSU. Figure 6 shows the T1 interface cable, connectors, and pinouts. Table 12 lists the pinouts for the null modem T1 cable, and Table 13 lists the pinouts for the straight-through T1 cable.


Warning Network hazardous voltages are present in the BRI, fractional T1/T1, and switched 56 cables. If you detach the cable, detach the end away from the router first to avoid possible electric shock. Network hazardous voltages also are present on the system card in the area of the BRI port (RJ-45 connector), fractional T1/T1 port (RJ-48C connector), and switched port (RJ-11 or RJ-48S connector), regardless of when power is turned OFF. Statement 59


Figure 6 T1 Interface Cable

Table 12 Null Modem T1 Cable Pinouts

15-Pin DB Connector
   
15-Pin DB Connector
Signal
Pin
Pin
Signal

Transmit Tip

1

3

Receive Tip

Receive Tip

3

1

Transmit Tip

Transmit Ring

9

11

Receive Ring

Receive Ring

11

9

Transmit Ring


Table 13 Straight-Through T1 Cable Pinouts

15-Pin DB Connector
   
15-Pin DB Connector
Signal
Pin
Pin
Signal

Transmit Tip

1

1

Transmit Tip

Transmit Ring

9

9

Transmit Ring

Receive Tip

3

3

Receive Tip

Receive Ring

11

11

Receive Ring


CT1/PRI-CSU Pinouts

Table 14 lists the CT1/PRI-CSU module port pinouts. Use a straight-through RJ-48C-to-RJ-48C cable to connect the T1 port to an RJ-48C jack.

Table 14 CT1/PRI-CSU Module Port (RJ-48C) Pinouts

RJ-48C Pin
Description

1

Receive Ring

2

Receive Tip

4

Ring

5

Tip


CE1/PRI Interface

This section contains the following topics:

CE1/PRI Cables

CE1/PRI Pinouts

CE1/PRI Cables

Cisco Systems makes four cables for the CE1/PRI modules. All four have DB-15 connectors on the CE1/PRI end and either BNC, DB-15, twinaxial, or RJ-45 connectors on the network end. Figure 7 through Figure 10 show the CE1/PRI interface cables.

Figure 7 E1 Interface Cable for 75-Ohm, Unbalanced Connections with BNC Connectors

Figure 8 E1 Interface Cable for 120-Ohm, Balanced Connections with DB-15 Connectors

Figure 9 E1 Interface Cable for 120-Ohm, Balanced Connections with Twinaxial Connectors

Figure 10 E1 Interface Cable for 120-Ohm, Balanced Connections with an RJ-45 Connector

CE1/PRI Pinouts

Table 15 lists pinouts for the CE1/PRI interface cables.

Table 15 E1 Interface Cable Pinouts 

CE1/PRI End
Network End
DB-15
BNC
DB-15
Twinax
RJ-45
Pin
Signal
Signal
Pin
Signal
Pin
Signal
Pin
Signal

9

TX Tip

TX Tip

1

TX Tip

TX-1

TX Tip

1

TX Tip

2

TX Ring

TX Shield

9

TX Ring

TX-2

TX Ring

2

TX Ring

10

TX Shield

2

TX Shield

Shield

TX Shield

3

TX Shield

8

RX Tip

RX Tip

3

RX Tip

RX-1

RX Tip

4

RX Tip

15

RX Ring

RX Shield

11

RX Ring

RX-2

RX Ring

5

RX Ring

7

RX Shield

4

RX Shield

Shield

RX Shield

6

RX Shield


56/64-kbps DSU/CSU Signals and Pinouts

Switched 56-kbps connections are provided by the 56-kbps DSU/CSU WAN interface card (WIC). For more information, see the Network Modules Hardware Installation Guide.


Warning Network hazardous voltages are present in the BRI, fractional T1/T1, and switched 56 cables. If you detach the cable, detach the end away from the router first to avoid possible electric shock. Network hazardous voltages also are present on the system card in the area of the BRI port (RJ-45 connector), fractional T1/T1 port (RJ-48C connector), and switched port (RJ-11 or RJ-48S connector), regardless of when power is turned OFF. Statement 59


Table 16 lists the 56/64-kbps DSU/CSU connector signals and pinouts.

Table 16 56/64-Kbps DSU/CSU (RJ-48S) Signals and Pinouts

8-Pin 1
Description

1

Transmit Ring

2

Transmit Tip

7

Receive Tip

8

Receive Ring

1 Pins 3, 4, 5, and 6 are not used.


T1/E1 Trunk and Digital Voice Port Pinouts (RJ-48)

Figure 11 shows the RJ-48 connector wiring for the T1/E1 trunk cable and the digital voice port cable; Table 17 lists the pinouts.

Figure 11 RJ-48-to-RJ-48 T1/E1 Cable Wiring

Table 17 Pinouts for T1/E1 Trunk and Digital Voice Port (RJ-48)

Pin 1
Signal

1

RX + (input)

2

RX - (input)

3

4

TX + (output)

5

TX - (output)

6

7

8

1 Any pin not referenced on a connector is not connected.


Analog Voice RJ-21 Pinouts

Figure 12 shows the RJ-21 connector wiring for the 50-pin Amphenol cable; Table 18 lists the pinouts.

Figure 12 RJ-21 Connector Wiring

Table 18 Pinouts for FXS and FXO Voice Ports 

Pair
Ring Conductor
Tip Conductor

1

1

26

2

2

27

3

3

28

4

4

29

5

5

30

6

6

31

7

7

32

8

8

33

9

9

34

10

10

35

11

11

36

12

12

37

13

13

38

14

14

39

15

15

40

16

16

41

17

17

42

18

18

43

19

19

44

20

20

45

21

21

46

22

22

47

23

23

48

24

24

49


Serial Connection Signals and Pinouts

This section provides information about the 1-port serial WAN interface card (WIC). With the appropriate serial transition cable, this WIC can provide an EIA/TIA-232, EIA/TIA-449, V.35, X.21, DTE/DCE, EIA-530 DTE, or NRZ/NRZI serial interface.

Types of Serial Cables

Five types of serial cables (also called serial adapter cables or serial transition cables) are available from Cisco Systems:

EIA/TIA-232 Interface

EIA/TIA-449 Interface

V.35 Interface

X.21 Serial Cable Assembly

EIA-530 Interface

All serial cables provide a universal plug at the WIC end. The network end of each cable provides the physical connectors most commonly used for the interface. For example, the network end of the EIA/TIA-232 serial cable is a DB-25 connector, the most widely used EIA/TIA-232 connector.

All serial interface types except EIA-530 are available in DTE or DCE format: DTE with a plug connector (male) at the network end and DCE with a receptacle (female) at the network end. V.35 is available in either mode with either gender at the network end. EIA-530 is available in DTE only.

Connecting the WIC to the Network


Note The serial WIC uses a universal high-density, 60-pin receptacle. Each universal port requires a serial port adapter cable that determines the port's electrical interface type and mode: DTE or DCE. Although all port adapter cables use a universal plug at the serial module end, the network end of each cable type uses the physical connectors commonly used for the interface. (For example, the network end of the EIA/TIA-232 port adapter cable is a DB-25 connector, the most widely used EIA/TIA-232 connector.)


After you install the serial WIC, use the appropriate serial cable to connect the WIC DB-60 serial port to one of the following types of equipment:

An asynchronous modem, if connecting to an analog telephone line

A synchronous modem, data service unit/channel service unit (DSU/CSU), or other data circuit-terminating equipment (DCE), if connecting to a digital WAN line

EIA/TIA-232 Interface

This section contains the following topics:

EIA/TIA-232 Connections

EIA/TIA-232 Serial Cable Assembly

EIA/TIA-232 Connections

EIA/TIA-232 supports unbalanced circuits at signal speeds up to 64 kbps. The network end of the adapter cable is a standard 25-pin D-shell connector known as a DB-25. (See Figure 13.) The router console and auxiliary ports also use EIA/TIA-232 connections; however, the serial module ports support synchronous connections, and the console and auxiliary ports support asynchronous connections.

Figure 13 EIA/TIA-232 Adapter Cable Connectors, Network End

EIA/TIA-232 Serial Cable Assembly

Figure 14 shows the EIA/TIA-232 serial cable assembly. Table 19 lists the DTE pinout and Table 20 lists the DCE pinout. Arrows indicate signal direction: —> means DTE to DCE and <— means DCE to DTE.

Figure 14 EIA/TIA-232 Cable Assembly

Table 19 EIA/TIA-232 DTE Cable Pinout (DB-60 to DB-25) 

60-Pin
Signal
Note
Direction
25-Pin
Signal

J1-50
J1-51
J1-52

MODE_0
GND
MODE_DCE

Shorting group

J1-46

Shield GND

Single

J2-1

Shield GND

J1-46

Shield GND

Single

J2-1

Shield GND

J1-41
Shield

TXD/RXD

Twisted pair no. 5

—>

J2-2
Shield

TXD

J1-36
Shield

RXD/TXD

Twisted pair no. 9

<—

J2-3
Shield

RXD

J1-42
Shield

RTS/CTS

Twisted pair no. 4

—>

J2-4
Shield

RTS

J1-35
Shield

CTS/RTS

Twisted pair no. 10

<—

J2-5
Shield

CTS

J1-34
Shield

DSR/DTR

Twisted pair no. 11

<—

J2-6
Shield

DSR

J1-45
Shield

Circuit GND

Twisted pair no. 1


J2-7
Shield

Circuit GND

J1-33
Shield

DCD/LL

Twisted pair no. 12

<—

J2-8
Shield

DCD

J1-37
Shield

TXC/NIL

Twisted pair no. 8

<—

J2-15
Shield

TXC

J1-38
Shield

RXC/TXCE

Twisted pair no. 7

<—

J2-17
Shield

RXC

J1-44
Shield

LL/DCD

Twisted pair no. 2

—>

J2-18
Shield

LTST

J1-43
Shield

DTR/DSR

Twisted pair no. 3

—>

J2-20
Shield

DTR

J1-39
Shield

TXCE/TXC

Twisted pair no. 6

—>

J2-24
Shield

TXCE


Table 20 EIA/TIA-232 DCE Cable Pinout (DB-60 to DB-25) 

60-Pin
Signal
Note
Direction
25-Pin
Signal

J1-50
J1-51

MODE_0
GND

Shorting group




J1-36
Shield

RXD/TXD

Twisted pair no. 9

<—

J2-2
Shield

TXD

J1-41
Shield

TXD/RXD

Twisted pair no. 5

—>

J2-3
Shield

RXD

J1-35
Shield

CTS/RTS

Twisted pair no. 10

<—

J2-4
Shield

RTS

J1-42
Shield

RTS/CTS

Twisted pair no. 4

—>

J2-5
Shield

CTS

J1-43
Shield

DTR/DSR

Twisted pair no. 3

—>

J2-6
Shield

DSR

J1-45
Shield

Circuit GND

Twisted pair no. 1


J2-7
Shield

Circuit GND

J1-44
Shield

LL/DCD

Twisted pair no. 2

—>

J2-8
Shield

DCD

J1-39
Shield

TXCE/TXC

Twisted pair no. 7

—>

J2-15
Shield

TXC

J1-40
Shield

NIL/RXC

Twisted pair no. 6

—>

J2-17
Shield

RXC

J1-33
Shield

DCD/LL

Twisted pair no. 12

<—

J2-18
Shield

LTST

J1-34
Shield

DSR/DTR

Twisted pair no. 11

<—

J2-20
Shield

DTR

J1-38
Shield

RXC/TXCE

Twisted pair no. 8

<—

J2-24
Shield

TXCE


EIA/TIA-449 Interface

This section contains the following topics:

EIA/TIA-449 Connections

EIA/TIA-449 Serial Cable Assembly

EIA/TIA-449 Connections

EIA/TIA-449, which supports balanced (EIA/TIA-422) and unbalanced (EIA/TIA-423) transmissions, is a faster (up to 2 Mbps) version of EIA/TIA-232 that provides more functions and supports transmissions over greater distances.

The EIA/TIA-449 standard was intended to replace the EIA/TIA-232 standard, but it was not widely adopted primarily because of the large installed base of DB-25 hardware and because of the larger size of the 37-pin EIA/TIA-449 connectors, which limited the number of connections possible (fewer than possible with the smaller, 25-pin EIA/TIA-232 connector).

The network end of the EIA/TIA-449 adapter cable provides a standard 37-pin D-shell connector. (See Figure 15.) EIA/TIA-449 cables are available as either DTE (DB-37 plug) or DCE (DB-37 receptacle).

Figure 15 EIA/TIA-449 Adapter Cable Connectors, Network End

EIA/TIA-449 Serial Cable Assembly

Figure 16 shows the EIA/TIA-449 serial cable assembly. Table 21 lists the DTE pinout, and Table 22 lists the DCE pinout. Arrows indicate signal direction: —> means DTE to DCE and <— means DCE to DTE.

Figure 16 EIA/TIA-449 Serial Cable Assembly

Table 21 EIA/TIA-449 DTE Cable Pinout (DB-60 to DB-37) 

60-Pin
Signal Name
Note
Direction
37-Pin
Signal Name

J1-49
J1-48

MODE_1
GND

Shorting group

J1-51
J1-52

GND
MODE_DCE

Shorting group

J1-46

Shield_GND

Single

_

J2-1

Shield GND

J1-11
J1-12

TXD/RXD+
TXD/RXD-

Twisted pair no. 6

—>
—>

J2-4
J2-22

SD+
SD-

J1-24
J1-23

TXC/RXC+
TXC/RXC-

Twisted pair no. 9

<—
<—

J2-5
J2-23

ST+
ST-

J1-28
J1-27

RXD/TXD+
RXD/TXD-

Twisted pair no. 11

<—
<—

J2-6
J2-24

RD+
RD-

J1-9
J1-10

RTS/CTS+
RTS/CTS-

Twisted pair no. 5

—>
—>

J2-7
J2-25

RS+
RS-

J1-26
J1-25

RXC/TXCE+
RXC/TXCE-

Twisted pair no. 10

<—
<—

J2-8
J2-26

RT+
RT-

J1-1
J1-2

CTS/RTS+
CTS/RTS-

Twisted pair no. 1

<—
<—

J2-9
J2-27

CS+
CS-

J1-44
J1-45

LL/DCD
Circuit_GND

Twisted pair no. 12

—>

J2-10
J2-37

LL
SC

J1-3
J1-4

DSR/DTR+
DSR/DTR-

Twisted pair no. 2

<—
<—

J2-11
J2-29

DM+
DM-

J1-7
J1-8

DTR/DSR+
DTR/DSR-

Twisted pair no. 4

—>
—>

J2-12
J2-30

TR+
TR-

J1-5
J1-6

DCD/DCD+
DCD/DCD-

Twisted pair no. 3

<—
<—

J2-13
J2-31

RR+
RR-

J1-13
J1-14

TXCE/TXC+
TXCE/TXC-

Twisted pair no. 7

—>
—>

J2-17
J2-35

TT+
TT-

J1-15
J1-16

Circuit_GND
Circuit_GND

Twisted pair no. 9


J2-19
J2-20

SG
RC


Table 22 EIA/TIA-449 DCE Cable Pinout (DB-60 to DB-37) 

60-Pin
Signal Name
Note
Direction
37-Pin
Signal Name

J1-49
J1-48

MODE_1
GND

Shorting group

J1-46

Shield_GND

Single

J2-1

Shield GND

J1-28
J1-27

RXD/TXD+
RXD/TXD-

Twisted pair no. 11

<—
<—

J2-4
J2-22

SD+
SD-

J1-13
J1-14

TXCE/TXC+
TXCE/TXC-

Twisted pair no. 7

—>
—>

J2-5
J2-23

ST+
ST-

J1-11
J1-12

TXD/RXD+
TXD/RXD-

Twisted pair no. 6

—>
—>

J2-6
J2-24

RD+
RD-

J1-1
J1-2

CTS/RTS+
CTS/RTS-

Twisted pair no. 1

<—
<—

J2-7
J2-25

RS+
RS-

J1-24
J1-23

TXC/RXC+
TXC/RXC-

Twisted pair no. 9

—>
—>

J2-8
J2-26

RT+
RT-

J1-9
J1-10

RTS/CTS+
RTS/CTS-

Twisted pair no. 5

—>
—>

J2-9
J2-27

CS+
CS-

J1-29
J1-30

NIL/LL
Circuit_GND

Twisted pair no. 12

—>

J2-10
J2-37

LL
SC

J1-7
J1-8

DTR/DSR+
DTR/DSR-

Twisted pair no. 4

—>
—>

J2-11
J2-29

DM+
DM-

J1-3
J1-4

DSR/DTR+
DSR/DTR-

Twisted pair no. 2

<—
<—

J2-12
J2-30

TR+
TR-

J1-5
J1-6

DCD/DCD+
DCD/DCD-

Twisted pair no. 3

—>
—>

J2-13
J2-31

RR+
RR-

J1-26
J1-25

RXC/TXCE+
RXC/TXCE-

Twisted pair no. 10

<—
<—

J2-17
J2-35

TT+
TT-

J1-15
J1-16

Circuit_GND
Circuit_GND

Twisted pair no. 8


J2-19
J2-20

SG
RC


V.35 Interface

This section contains the following topics:

V.35 Connections

V.35 Serial Cable Assembly

V.35 Connections

The V.35 interface is recommended for speeds up to 48 kbps, although in practice it is used successfully at 4 Mbps.

The network end of the V.35 adapter cable provides a standard 34-pin Winchester-type connector. (See Figure 17.) V.35 cables are available with a standard V.35 plug or receptacle in either DTE or DCE mode.

Figure 17 V.35 Adapter Cable Connectors, Network End

V.35 Serial Cable Assembly

Figure 18 shows the V.35 serial cable assembly. Table 23 lists the DTE pinout and Table 24 lists the DCE pinout. Arrows indicate signal direction: —> means DTE to DCE and <— means DCE to DTE.

Figure 18 V.35 Serial Cable Assembly

Table 23 V.35 DTE Cable Pinout (DB-60 to Winchester-Type 34-Pin) 

60-Pin
Signal Name
Type
Direction
34-Pin
Signal Name

J1-49
J1-48

MODE_1
GND

Shorting group

J1-50
J1-51
J1-52

MODE_0
GND
MODE_DCE

Shorting group

J1-53
J1-54
J1-55
J1-56

TxC/NIL
RxC_TxCE
RxD/TxD
GND

Shorting group

J1-46

Shield_GND

Single

J2-A

Frame GND

J1-45
Shield

Circuit_GND

Twisted pair no. 12


J2-B
Shield

Circuit GND

J1-42
Shield

RTS/CTS

Twisted pair no. 9

—>

J2-C
Shield

RTS

J1-35
Shield

CTS/RTS

Twisted pair no. 8

<—

J2-D
Shield

CTS

J1-34
Shield

DSR/DTR

Twisted pair no. 7

<—

J2-E
Shield

DSR

J1-33
Shield

DCD/LL

Twisted pair no. 6

<—

J2-F
Shield

RLSD

J1-43
Shield

DTR/DSR

Twisted pair no. 10

—>

J2-H
Shield

DTR

J1-44
Shield

LL/DCD

Twisted pair no. 11

—>

J2-K
Shield

LT

J1-18
J1-17

TxD/RxD+
TxD/RxD-

Twisted pair no. 1

—>
—>

J2-P
J2-S

SD+
SD-

J1-28
J1-27

RxD/TxD+
RxD/TxD-

Twisted pair no. 5

<—
<—

J2-R
J2-T

RD+
RD-

J1-20
J1-19

TxCE/TxC+
TxCE/TxC-

Twisted pair no. 2

—>
—>

J2-U
J2-W

SCTE+
SCTE-

J1-26
J1-25

RxC/TxCE+
RxC/TxCE-

Twisted pair no. 4

<—
<—

J2-V
J2-X

SCR+
SCR-

J1-24
J1-23

TxC/RxC+
TxC/RxC-

Twisted pair no. 3

<—
<—

J2-Y
J2-AA

SCT+
SCT-


Table 24 V.35 DCE Cable Pinout (DB-60 to Winchester-Type 34-Pin) 

60-Pin
Signal Name
Type
Direction
34-Pin
Signal Name

J1-49
J1-48

MODE_1
GND

Shorting group

J1-50
J1-51

MODE_0
GND

Shorting group

J1-53
J1-54
J1-55
J1-56

TxC/NIL
RxC_TxCE
RxD/TxD
GND

Shorting group

J1-46

Shield_GND

Single

J2-A

Frame GND

J1-45
Shield

Circuit_GND

Twisted pair no. 12


J2-B
Shield

Circuit GND

J1-35
Shield

CTS/RTS

Twisted pair no. 8

<—

J2-C
Shield

RTS

J1-42
Shield

RTS/CTS

Twisted pair no. 9

—>

J2-D
Shield

CTS

J1-43
Shield

DTR/DSR

Twisted pair no. 10

—>

J2-E
Shield

DSR

J1-44
Shield

LL/DCD

Twisted pair no. 11

—>

J2-F
Shield

RLSD

J1-34
Shield

DSR/DTR

Twisted pair no. 7

<—

J2-H
Shield

DTR

J1-33
Shield

DCD/LL

Twisted pair no. 6

<—

J2-K
Shield

LT

J1-28
J1-27

RxD/TxD+
RxD/TxD-

Twisted pair no. 5

<—
<—

J2-P
J2-S

SD+
SD-

J1-18
J1-17

TxD/RxD+
TxD/RxD-

Twisted pair no. 1

—>
—>

J2-R
J2-T

RD+
RD-

J1-26
J1-25

RxC/TxCE+
RxC/TxCE-

Twisted pair no. 4

<—
<—

J2-U
J2-W

SCTE+
SCTE-

J1-22
J1-21

NIL/RxC+
NIL/RxC-

Twisted pair no. 3

—>
—>

J2-V
J2-X

SCR+
SCR-

J1-20
J1-19

TxCE/TxC+
TxCE/TxC-

Twisted pair no. 2

—>
—>

J2-Y
J2-AA

SCT+
SCT-


X.21 Interface

This section contains the following topics:

X.21 Connections

X.21 Serial Cable Assembly

X.21 Connections

The X.21 interface uses a 15-pin connection for balanced circuits and is commonly used in the United Kingdom to connect public data networks. X.21 relocates some of the logic functions to the DTE and DCE interfaces and, as a result, requires fewer circuits and a smaller connector than EIA/TIA-232.

The network end of the X.21 adapter cable is a standard DB-15 connector. (See Figure 19.) X.21 cables are available as either DTE (DB-15 plug) or DCE (DB-15 receptacle).

Figure 19 X.21 Adapter Cable Connectors, Network End

X.21 Serial Cable Assembly

Figure 20 shows the X.21 serial cable assembly. Table 25 lists the DTE pinout, and Table 26 lists the DCE pinout. Arrows indicate signal direction: —> means DTE to DCE and <— means DCE to DTE.

Figure 20 X.21 Serial Cable Assembly

Table 25 X.21 DTE Cable Pinout (DB-60 to DB-15) 

60-Pin
Signal Name
Type
Direction
15-Pin
Signal Name

J1-48
J1-47

GND
MODE_2

Shorting group

J1-51
J1-52

GND
MODE_DCE

Shorting group

J1-46

Shield_GND

Single

J2-1

Shield GND

J1-11
J1-12

TXD/RXD+
TXD/RXD-

Twisted pair no. 3

—>
—>

J2-2
J2-9

Transmit+
Transmit-

J1-9
J1-10

RTS/CTS+
RTS/CTS-

Twisted pair no. 2

—>
—>

J2-3
J2-10

Control+
Control-

J1-28
J1-27

RXD/TXD+
RXD/TXD-

Twisted pair no. 6

<—
<—

J2-4
J2-11

Receive+
Receive-

J1-1
J1-2

CTS/RTS+
CTS/RTS-

Twisted pair no. 1

<—
<—

J2-5
J2-12

Indication+
Indication-

J1-26
J1-25

RXC/TXCE+
RXC/TXCE-

Twisted pair no. 5

<—
<—

J2-6
J2-13

Timing+
Timing-

J1-15
Shield

Control_GND

Twisted pair no. 4


J2-8
Shield

Control GND


Table 26 X.21 Serial DCE Cable Pinout (DB-60 to DB-15) 

60-Pin
Signal Name
Type
Direction
15-Pin
Signal Name

J1-48
J1-47

GND
MODE_2

Shorting group

J1-46

Shield_GND

Single

J2-1

Shield GND

J1-28
J1-27

RXD/TXD+
RXD/TXD-

Twisted pair no. 6

<—
<—

J2-2
J2-9

Transmit+
Transmit-

J1-1
J1-2

CTS/RTS+
CTS/RTS-

Twisted pair no. 1

<—
<—

J2-3
J2-10

Control+
Control-

J1-11
J1-12

TXD/RXD+
TXD/RXD-

Twisted pair no. 3

—>
—>

J2-4
J2-11

Receive+
Receive-

J1-9
J1-10

RTS/CTS+
RTS/CTS-

Twisted pair no. 2

—>
—>

J2-5
J2-12

Indication+
Indication-

J1-24
J1-23

TXC/RXC+
TXC/RXC-

Twisted pair no. 4

—>
—>

J2-6
J2-13

Timing+
Timing-

J1-15
Shield

Control_GND

Twisted pair no. 5


J2-8
Shield

Control GND


EIA-530 Interface

This section contains the following topics:

EIA-530 Connections

EIA-530 Serial Cable Assembly

EIA-530 Connections

EIA-530, which supports balanced transmission, provides the increased functionality, speed, and distance of EIA/TIA-449 on the smaller DB-25 connector used for EIA/TIA-232, instead of the 37-pin connectors used for EIA/TIA-449. Like EIA/TIA-449, EIA-530 refers to the electrical specifications of EIA/TIA-422 and EIA/TIA-423. Although the specification recommends a maximum speed of 2 Mbps, EIA-530 is used successfully at 4 Mbps or faster speeds over short distances.

The EIA-530 adapter cable is available in DTE mode only. The network end of the EIA-530 adapter cable is a standard DB-25 plug commonly used for EIA/TIA-232 connections. Figure 21 shows the DB-25 connector at the network end of the adapter cable.

Figure 21 EIA-530 Adapter Cable Connector, Network End

EIA-530 Serial Cable Assembly

Figure 22 shows the EIA-530 serial cable assembly, and Table 27 lists the pinout. Arrows indicate signal direction: —> means DTE to DCE and <— means DCE to DTE.

The EIA-530 interface cannot be operated in DCE mode, and no DCE cable is available for it.

Figure 22 EIA-530 Serial Cable Assembly

Table 27 EIA-530 DTE Cable Pinout (DB-60 to DB-25) 

60-Pin
Signal Name
25-Pin
Signal Name
Direction

J1-11
J1-12

TXD/RXD+
TXD/RXD-

J2-2
J2-14

BA(A), TXD+
BA(B), TXD-

—>
—>

J1-28
J1-27

RXD/TXD+
RXD/TXD-

J2-3
J2-16

BB(A), RXD+
BB(B), RXD-

<—
<—

J1-9
J1-10

RTS/CTS+
RTS/CTS-

J2-4
J2-19

CA(A), RTS+
CA(B), RTS-

—>
—>

J1-1
J1-2

CTS/RTS+
CTS/RTS-

J2-5
J2-13

CB(A), CTS+
CB(B), CTS-

<—
<—

J1-3
J1-4

DSR/DTR+
DSR/DTR-

J2-6
J2-22

CC(A), DSR+
CC(B), DSR-

<—
<—

J1-46
J1-47

Shield_GND
MODE_2

J2-1

Shield

Shorted

J1-48
J1-49

GND
MODE_1



Shorted

J1-5
J1-6

DCD/DCD+
DCD/DCD-

J2-8
J2-10

CF(A), DCD+
CF(B), DCD-

<—
<—

J1-24
J1-23

TXC/RXC+
TXC/RXC-

J2-15
J2-12

DB(A), TXC+
DB(B), TXC-

<—
<—

J1-26
J1-25

RXC/TXCE+
RXC/TXCE-

J2-17
J2-9

DD(A), RXC+
DD(B), RXC-

<—
<—

J1-44
J1-45

LL/DCD
Circuit_GND

J2-18
J2-7

LL
Circuit_ GND

—>

J1-7
J1-8

DTR/DSR+
DTR/DSR-

J2-20
J2-23

CD(A), DTR+
CD(B), DTR-

—>
—>

J1-13
J1-14

TXCE/TXC+
TXCE/TXC-

J2-24
J2-11

DA(A), TXCE+
DA(B), TXCE-

—>
—>

J1-51
J1-52

GND
MODE_DCE



Shorted


Smart Serial Connection Signals and Pinouts

The Smart Serial cable interface supports multiple independent serial interface ports. Each port supports five types of serial interfaces:

EIA/TIA-232 Smart Serial Cable Assembly

EIA/TIA-449 Smart Serial Cable Assembly

X.21 Smart Serial Cable Assembly

V.35 Smart Serial Cable Assembly

EIA-530 Smart Serial Cable Assembly

The serial end (router end) of the Smart Serial cable is a 26-pin connector.

These cables are used with the following interface cards:

2-port serial and 2-port asynchronous or synchronous WICs

4-port serial and 4-port asynchronous or synchronous high-speed WICs (HWICs)

Figure 23 shows the serial cables you can connect to the port on the asynchronous or synchronous serial modules and the serial WICs and HWICs.

Figure 23 Smart Serial Interface Cables

EIA/TIA-232 Smart Serial Cable Assembly

Table 28 lists the DTE pinout, and Table 29 lists the DCE pinout for the EIA/TIA-232 Smart Serial cable. Arrows indicate signal direction: —> means DTE to DCE and <— means DCE to DTE.

Table 28 EIA/TIA-232 DTE Smart Serial Cable Pinout 

26-Pin
Signal Name
Note
Direction
DB-25 Pin
Signal Name

J1-23
J1-24

MODE_0
MODE_DCE

Local connections

     

Drain wire

 

Shield

J2-01

Shield_GND

J1-05
J1-18

I_RXD/TXD+
GND+

Twisted pair no. 9

<—

J2-03

RXD
GND

J1-01
J1-14

O_TXD/RXD+
GND+

Twisted pair no. 5

—>

J2-02

TXD
GND

J1-11
J1-12

I_CTS/RTS+
I_DSR/DTR+

Twisted pair no. 2

<—
<—

J2-05
J2-06

CTS
DSR

J1-08
J1-07

O_RTS/CTS
O_DTR/DSR+

Twisted pair no. 4

—>
—>

J2-04
J2-20

RTS
DTR

J1-06
J1-19

B_DCD/DCD+
GND+

Twisted pair no. 1

<—

J2-08
J2-07

DCD
GND

J1-03
J1-16

B_TXC/TXC+
GND+

Twisted pair no. 7

<—

J2-15

TXC
GND

J1-02
J1-15

O_TXCE/RXC+
GND+

Twisted pair no. 6

—>

J2-24

TXCE
GND

J1-13
J1-26

B_LL/LL+
GND+

Twisted pair no. 3

—>

J2-18

LTST
GND

J1-04
J1-17

I_RXC/TXCE+
GND+

Twisted pair no. 8

<—

J2-17

RXC
GND


Table 29 EIA/TIA-232 DCE Smart Serial Cable Pinout 

26-Pin
Signal Name
Note
Direction
DB-25 Pin
Signal Name

J1-23

MODE_0

Local connections

     

Drain wire

 

Shield

J2-01

Shield_GND

J1-05
J1-18

I_RXD/TXD+
GND+

Twisted pair no. 5

<—

J2-02

TXD
GND

J1-01
J1-14

O_TXD/RXD+
GND+

Twisted pair no. 9

—>

J2-03

RXD
GND

J1-11
J1-12

I_CTS/RTS+
I_DSR/DTR+

Twisted pair no. 2

<—
<—

J2-04
J2-20

RTS
DTR

J1-08
J1-07

O_RTS/CTS
O_DTR/DSR+

Twisted pair no. 4

—>
—>

J2-05
J2-06

CTS
DSR

J1-06
J1-19

B_DCD/DCD+
GND+

Twisted pair no. 1

—>

J2-08
J2-07

DCD
GND

J1-03
J1-16

B_TXC/TXC+
GND+

Twisted pair no. 7

—>

J2-15

TXC
GND

J1-02
J1-15

O_TXCE/RXC+
GND+

Twisted pair no. 8

—>

J2-17

RXC
GND

J1-13
J1-26

B_LL/LL+
GND+

Twisted pair no. 3

<—

J2-18

LTST
GND

J1-04
J1-17

I_RXC/TXCE+
GND+

Twisted pair no. 6

<—

J2-24

TXCE
GND


EIA/TIA-449 Smart Serial Cable Assembly

Table 30 lists the DTE pinout, and Table 31 lists the DCE pinout for the EIA/TIA-449 Smart Serial cable. Arrows indicate signal direction: —> means DTE to DCE and <— means DCE to DTE.

Table 30 EIA/TIA-449 DTE Smart Serial Cable Pinout 

26-Pin
Signal Name
Note
Direction
DB-37 Pin
Signal Name

Drain wire

 

Shield

J2-01

Shield_GND

J1-22
J1-24

MODE_I
MODE_DCE

Twisted pair no. 2


J2-19
J2-20

SG
RC

J1-01
J1-14

O_TXD/RXD+
O_TXD/RXD-

Twisted pair no. 5

—>
—>

J2-04
J2-22

SD+
SD-

J1-03
J1-16

B_TXC/TXC+
B_TXC/TXC-

Twisted pair no. 7

<—
<—

J2-05
J2-23

ST+
ST-

J1-05
J1-18

I_RXD/TXD+
I_RXD/TXD-

Twisted pair no. 9

<—
<—

J2-06
J2-24

RD+
RD-

J1-08
J1-09

O_RTS/CTS
O_RTS/CTS-

Twisted pair no. 1

—>
—>

J2-07
J2-25

RS+
RS-

J1-04
J1-17

I_RXC/TXCE+
I_RXC/TXCE-

Twisted pair no. 8

<—
<—

J2-08
J2-26

RT+
RT-

J1-11
J1-10

I_CTS/RTS+
I_CTS/RTS-

Twisted pair no. 4

<—
<—

J2-09
J2-27

CS+
CS-

J1-13
J1-26

B_LL/LL+
GND+

Twisted pair no. 12

—>

J2-10
J2-37

LL
SC

J1-12
J1-25

I_DTR/DSR+
I_DTR/DSR-

Twisted pair no. 10

<—
<—

J2-11
J2-29

DM+
DM-

J1-07
J1-20

O_DTR/DSR+
O_DTR/DSR-

Twisted pair no. 3

—>
—>

J2-12
J2-30

TR+
TR-

J1-02
J1-15

O_TXCE/RXC+
O_TXCE/RXC-

Twisted pair no. 6

—>
—>

J2-17
J2-35

TT+
TT-

J1-06
J1-19

B_DCD/DCD+
B_DCD/DCD-

Twisted pair no. 11

<—
<—

J2-13
J2-31

RR+
RR-


Table 31 EIA/TIA-449 DCE Smart Serial Cable Pinout 

26-Pin
Signal Name
Note
Direction
DB-37 Pin
Signal Name

Drain wire

 

Shield

J2-01

Shield_GND

J1-22

MODE_I
Not used

Twisted pair no. 2

J2-19
J2-20

SG
RC

J1-05
J1-18

I_RXD/TXD+
I_RXD/TXD-

Twisted pair no. 5

<—
<—

J2-04
J2-22

SD+
SD-

J1-03
J1-16

B_TXC/TXC+
B_TXC/TXC-

Twisted pair no. 7

—>
—>

J2-05
J2-23

ST+
ST-

J1-01
J1-14

O_TXD/RXD+
O_TXD/RXD-

Twisted pair no. 9

—>
—>

J2-06
J2-24

RD+
RD-

J1-11
J1-10

I_CTS/RTS+
I_CTS/RTS-

Twisted pair no. 1

<—
<—

J2-07
J2-25

RS+
RS-

J1-02
J1-15

O_TXCE/RXC+
O_TXCE/RXC-

Twisted pair no. 8

—>
—>

J2-08
J2-26

RT+
RT-

J1-08
J1-09

O_RTS/CTS
O_RTS/CTS-

Twisted pair no. 4

—>
—>

J2-09
J2-27

CS+
CS-

J1-06
J1-19

B_DCD/DCD+
B_DCD/DCD-

Twisted pair no. 11

—>
—>

J2-13
J2-31

RR+
RR-

J1-07
J1-20

O_DTR/DSR+
O_DTR/DSR-

Twisted pair no. 10

—>
—>

J2-11
J2-29

DM+
DM-

J1-12
J1-25

I_DTR/DSR+
I_DTR/DSR-

Twisted pair no. 3

<—
<—

J2-12
J2-30

TR+
TR-

J1-13
J1-26

B_LL/LL+
GND+

Twisted pair no. 12

—>

J2-10
J2-37

LL
SC

J1-04
J1-17

I_RXC/TXCE+
I_RXC/TXCE-

Twisted pair no. 6

<—
<—

J2-17
J2-35

TT+
TT-


X.21 Smart Serial Cable Assembly

Table 32 lists the DTE pinout, and Table 33 lists the DCE pinout for the X.21 Smart Serial cable. Arrows indicate signal direction: —> means DTE to DCE and <— means DCE to DTE.

Table 32 X.21 DTE Smart Serial Cable Pinout 

26-Pin
Signal Name
Note
Direction
DB-15 Pin
Signal Name

J1-21
J1-24

MODE_2
MODE_DCE

Local connections

     

Drain wire

 

Shield

J2-01

Shield_GND

J1-05
J1-18

I_RXD/TXD+
I_RXD/TXD-

Twisted pair no. 8

<—
<—

J2-04
J2-11

RECEIVE+
RECEIVE-

J1-01
J1-14

O_TXD/RXD+
O_TXD/RXD-

Twisted pair no. 5

—>
—>

J2-02
J2-09

TRANSMIT+
TRANSMIT-

J1-11
J1-10

I_CTS/RTS+
I_DSR/DTR+

Twisted pair no. 2

<—
<—

J2-05
J2-12

INDICATION+
INDICATION-

J1-08
J1-09

O_RTS/CTS
O_DTR/DSR+

Twisted pair no. 3

—>
—>

J2-03
J2-10

CONTROL+
CONTROL-

J1-26

GND+
Not used

Twisted pair no. 1

J2-08

CCT GND
Not used

J1-04
J1-17

I_RXC/TXCE+
I_RXC/TXCE-

Twisted pair no. 7

<—
<—

J2-06
J2-13

TIMING+
TIMING-

 

Not used

Twisted pair no. 4

   

Not used

 

Not used

Twisted pair no. 6

   

Not used

 

Not used

Twisted pair no. 9

   

Not used


Table 33 X.21 DCE Smart Serial Cable Pinout 

26-Pin
Signal Name
Note
Direction
DB-15 Pin
Signal Name

J1-21

MODE_2

Local connections

     

Drain wire

 

Shield

J2-01

Shield_GND

J1-05
J1-18

I_RXD/TXD+
I_RXD/TXD-

Twisted pair no. 5

<—
<—

J2-02
J2-09

TRANSMIT+
TRANSMIT-

J1-01
J1-14

O_TXD/RXD+
O_TXD/RXD-

Twisted pair no. 8

—>
—>

J2-04
J2-11

RECEIVE+
RECEIVE-

J1-11
J1-10

I_CTS/RTS+
I_DSR/DTR+

Twisted pair no. 3

<—
<—

J2-03
J2-10

CONTROL+
CONTROL-

J1-08
J1-09

O_RTS/CTS
O_DTR/DSR+

Twisted pair no. 2

—>
—>

J2-05
J2-12

INDICATION+
INDICATION-

J1-02
J1-15

O_TXCE/RXC+
O_TXCE/RXC+

Twisted pair no. 7

—>
—>

J2-06
J2-13

TIMING+
TIMING-

J1-26

GND
Not used

Twisted pair no. 1

J2-08

CCT GND
Not used

 

Not used

Twisted pair no. 4

   

Not used

 

Not used

Twisted pair no. 6

   

Not used

 

Not used

Twisted pair no. 9

   

Not used


V.35 Smart Serial Cable Assembly

Table 34 lists the DTE pinout, and Table 35 lists the DCE pinout for the V.35 Smart Serial cable. Arrows indicate signal direction: —> means DTE to DCE and <— means DCE to DTE.

Table 34 V.35 DTE Smart Serial Cable Pinout 

26-Pin
Signal Name
Note
Direction
V.35 Pin
Signal Name

J1-22
J1-23
J1-24

MODE_1
MODE_0
MODE_DCE

Local connections

     

Drain wire

 

Shield

J2-A

Shield_GND

J1-06
J1-19

B_DCD/DCD+
GND+

Twisted pair no. 1

<—

J2-F

RLSD
GND

J1-13
J1-26

B_LL/LL+
GND

Twisted pair no. 3

—>

J2-K
J2-B

LT
GND

J1-05
J1-18

I_RXD/TXD+
I_RXD/TXD-

Twisted pair no. 9

<—
<—

J2-R
J2-T

RD+
RD-

J1-01
J1-14

O_TXD/RXD+
O_TXD/RXD-

Twisted pair no. 5

—>
—>

J2-P
J2-S

SD+
SD-

J1-11
J1-12

I_CTS/RTS+
I_DSR/DTR+

Twisted pair no. 2

<—
<—

J2-D
J2-E

CTS
DSR

J1-08
J1-07

O_RTS/CTS
O_DTR/DSR+

Twisted pair no. 4

—>
—>

J2-C
J2-H

RTS
DTR

J1-04
J1-17

I_RXC/TXCE+
I_RXC/TXCE-

Twisted pair no. 8

<—
<—

J2-V
J2-X

SCR+
SCR-

J1-02
J1-15

O_TCXE/RXC+
0_TXCE/RXC-

Twisted pair no. 6

—>
—>

J2-U
J2-W

SCTE+
SCTE-

J1-03
J1-16

B_TXC/TXC+
B_TXC/TXC-

Twisted pair no. 7

<—
<—

J2-Y
J2-AA

SCT+
SCT-


Table 35 V.35 DCE Smart Serial Cable Pinout 

26-Pin
Signal Name
Note
Direction
V.35 Pin
Signal Name

J1-22
J1-23

MODE_1
MODE_0

Local connections

     

Drain wire

 

Shield

J2-A

Shield_GND

J1-06
J1-19

B_DCD/DCD+
GND+

Twisted pair no. 1

—>

J2-F

RLSD
GND

J1-13
J1-26

B_LL/LL+
GND

Twisted pair no. 3

—>

J2-K
J2-B

LT
GND

J1-05
J1-18

I_RXD/TXD+
I_RXD/TXD-

Twisted pair no. 5

<—
<—

J2-P
J2-S

SD+
SD-

J1-01
J1-14

O_TXD/RXD+
O_TXD/RXD-

Twisted pair no. 9

—>
—>

J2-R
J2-T

RD+
RD-

J1-11
J1-12

I_CTS/RTS+
I_DSR/DTR+

Twisted pair no. 4

<—
<—

J2-C
J2-H

RTS
DSR

J1-08
J1-07

O_RTS/CTS
O_DTR/DSR+

Twisted pair no. 2

—>
—>

J2-D
J2-E

CTS
DSR

J1-04
J1-17

I_RXC/TXCE+
I_RXC/TXCE-

Twisted pair no. 6

<—
<—

J2-U
J2-W

SCTE+
SCTE-

J1-02
J1-15

O_TCXE/RXC+
0_TXCE/RXC-

Twisted pair no. 8

—>
—>

J2-V
J2-X

SCR+
SCR-

J1-03
J1-16

B_TXC/TXC+
B_TXC/TXC-

Twisted pair no. 7

—>
—>

J2-Y
J2-AA

SCT+
SCT-


EIA-530 Smart Serial Cable Assembly

Table 36 lists the DTE pinout, and Table 37 lists the DCE pinout for the EIA-530 Smart Serial cable. Arrows indicate signal direction: —> means DTE to DCE and <— means DCE to DTE.

Table 36 EIA-530 DTE Smart Serial Cable Pinout 

26-Pin
Signal Name
Note
Direction
DB-25 Pin
Signal Name

J1-21
J1-23
J1-24

MODE_2
MODE_0
MODE_DCE

Local connections

     

Drain wire

 

Shield

J2-01

Shield_GND

J1-06
J1-19

B_DCD/DCD+
B_DCD/DCD-

Twisted pair no. 11

<—
<—

J2-08
J2-10

CF(A); DCD+
CF(B); DCD-

J1-13
J1-26

B_LL/LL+
GND

Twisted pair no. 12

—>

J2-18
J2-07

LL
GND

J1-05
J1-18

I_RXD/TXD+
I_RXD/TXD-

Twisted pair no. 9

<—
<—

J2-03
J2-16

BB(A); RXD+
BB(B); RXD-

J1-01
J1-14

O_TXD/RXD+
O_TXD/RXD-

Twisted pair no. 5

—>
—>

J2-02
J2-14

BA(A); TXD+
BA(B); TXD-

J1-11
J1-10

I_CTS/RTS+
I_DSR/RTS-

Twisted pair no. 4

<—
<—

J2-05
J2-13

CB(A); CTS+
CB(B); CTS-

J1-03
J1-16

B_TXC/TXC+
B_TXC/TXC-

Twisted pair no. 7

<—
<—

J2-15
J2-12

DB(A); TXC+
DB(B); TXC-

J1-12
J1-25

I_DSR/DTR+
I_DSR/DTR-

Twisted pair no. 10

<—
<—

J2-06
J2-22

CC(A); DSR+
CC(B); DSR-

J1-08
J1-09

O_RTS/CTS
O_RTS/CTS-

Twisted pair no. 1

—>
—>

J2-04
J2-19

CA(A); RTS+
CA(B); RTS-

J1-04
J1-17

I_RXC/TXCE+
I_RXC/TXCE-

Twisted pair no. 8

<—
<—

J2-17
J2-09

DD(A); RXC+
DD(B); RXC-

J1-02
J1-15

O_TCXE/RXC+
0_TXCE/RXC-

Twisted pair no. 6

—>
—>

J2-24
J2-11

DB(A); TXCE+
DB(B); TXCE-

J1-03
J1-16

B_TXC/TXC+
B_TXC/TXC-

Twisted pair no. 7

<—
<—

J2-15
J2-12

DB(A); TXC+
DB(B); TXC-

J1-07
J1-20

O_DTR/DSR+
O_DTR/DSR-

Twisted pair no. 3

—>
—>

J2-20
J2-23

CD(A); DTR+
CD(B); DTR-

 

Not used

Twisted pair no. 2

   

Not used


Table 37 RS-530A DCE Smart Serial Cable Pinout 

26-Pin
Signal Name
Note
Direction
DB-25 Pin
Signal Name

J1-21
J1-22
J1-24

MODE_2
MODE_1
MODE_DCE

Local connections

     

Drain wire

 

Shield

J2-01

Shield_GND

J1-06
J1-19

B_DCD/DCD+
B_DCD/DCD-

Twisted pair no. 11

<—
<—

J2-08
J2-10

CF(A); DCD+
CF(B); DCD-

J1-13
J1-26

B_LL/LL+
GND

Twisted pair no. 12

—>

J2-18
J2-07

LL
AB; GND

J1-05
J1-18

I_RXD/TXD+
I_RXD/TXD-

Twisted pair no. 9

<—
<—

J2-03
J2-16

BB(A); RXD+
BB(B); RXD-

J1-01
J1-14

O_TXD/RXD+
O_TXD/RXD-

Twisted pair no. 5

—>
—>

J2-02
J2-14

BA(A); TXD+
BA(B); TXD-

J1-11
J1-10

I_CTS/RTS+
I_DSR/RTS-

Twisted pair no. 4

<—
<—

J2-05
J2-13

CB(A); CTS+
CB(B); CTS-

J1-12
J1-25

I_DSR/DTR+
GND

Twisted pair no. 10

<—

J2-06

CC(A); DSR+
AC; GND

J1-03
J1-16

B_TXC/TXC+
B_TXC/TXC-

Twisted pair no. 7

<—
<—

J2-15
J2-12

DB(A); TXC+
DB(B); TXCS-

J1-08
J1-09

O_RTS/CTS
O_RTS/CTS-

Twisted pair no. 1

—>
—>

J2-04
J2-19

CA(A); RTS+
CA(B); RTS-

J1-04
J1-17

I_RXC/TXCE+
I_RXC/TXCE-

Twisted pair no. 8

<—
<—

J2-17
J2-09

DD(A); RXC+
DD(B); RXC-

J1-02
J1-15

O_TCXE/RXC+
0_TXCE/RXC-

Twisted pair no. 6

—>
—>

J2-24
J2-11

DB(A); TXCE+
DB(B); TXCE-

J1-03
J1-16

B_TXC/TXC+
B_TXC/TXC-

Twisted pair no. 7

<—
<—

J2-15
J2-12

DB(A); TXC+
DB(B); TXC-

J1-07
J1-20

O_DTR/DSR+
GND+

Twisted pair no. 3

—>

J2-20
J2-23

CD(A); DTR+
AC; GND

 

Not used

Twisted pair no. 2

   

Not used


Octopus Cable Connection Signals and Pinouts

This section contains the following topics:

4-Port RS-232 Cable Assembly

8-Port RS-232 Cable Assembly

4-Port RS-232 Cable Assembly

The 4-port RS-232 cable was designed for use with the Cisco 8-port RS-232 asynchronous or synchronous high-speed WAN interface card (HWIC) (the Cisco HWIC-8A-RS232). The router end of the cable consists of a 68-pin 2-row D-shell connector. The network end of the cable consists of 4 standard 25-pin D-shell connectors (DB-25 connectors). These cables are available in either DTE or DCE format. See Figure 24.

Figure 24 4-Port RS-232 Cable Connectors, Network End

Figure 25 shows the 4-port RS-232 cable assembly. Table 38 lists the cable's DTE pinout, and Table 39 lists the cable's DCE pinout. Arrows indicate signal direction: —> means DTE to DCE and <— means DCE to DTE.

Figure 25 4-Port RS-232 Cable Assembly

Table 38 4-Port RS-232 DTE Cable Pinout 

68-Pin
Signal Name
Note
Direction
DB-25 Pin
Signal Name

J1-32
J1-31

GND

Local mode connection

J1-67
J1-65

GND

Local mode connection

J1-34
J1-68

GND

Local mode connection

J1-1
J1-2
J1-9
J1-16
J1-23
J1-30
J1-31
J1-35
J1-36
J1-43
J1-50
J1-57
J1-64
J1-65
J1-68

GND

Shorting block

J1-1

Shield_GND

Shield

J2-01

Shield_GND

J1-7

TXD/RXD
Not used

Twisted pair

—>

J2-02

TXD
GND

J1-38

RXD/TXD
Not used

Twisted pair

<—

J2-03

RXD
GND

J1-41
J1-8

RTS/CTS
DTR/DSR

Twisted pair

—>
—>

J2-04
J2-20

RTS
DTR

J1-4
J1-37

CTS/RTS
DSR/DTR

Twisted pair

<—
<—

J2-05
J2-06

CTS
DSR

J1-3
J1-36

DCD/LL
GND

Twisted pair

<—

J2-08
J2-07

DCD
GND

J1-5

TXC/NIL
Not used

Twisted pair

<—

J2-15

TXC
GND

J1-39

RXC/TXCE
Not used

Twisted pair

<—

J2-17

RXC
GND

J1-42
J1-2

LL/DCD
GND

Twisted pair

—>

J2-18
J2-07

LTST
GND

J1-6

TXCE/RXC
Not used

Twisted pair

—>

J2-24

TXCE
GND

           

J1-35

Shield

 

J3-01

Shield_GND

J1-14

TXD/RXD
Not used

Twisted pair

—>

J3-02

TXD
GND

J1-45

RXD/TXD
Not used

Twisted pair

<—

J3-03

RXD
GND

J1-48
J1-15

RTS/CTS
DTR/DSR

Twisted pair

—>
—>

J3-04
J3-20

RTS
DTR

J1-11
J1-44

CTS/RTS
DSR/DTR

Twisted pair

<—
<—

J3-05
J3-06

CTS
DSR

J1-10
J1-43

DCD/LL
GND

Twisted pair

<—

J3-08
J3-07

DCD
GND

J1-12

TXC/NIL
Not used

Twisted pair

<—

J3-15

TXC
GND

J1-46

RXC/TXCE
Not used

Twisted pair

<—

J3-17

RXC
GND

J1-49
J1-36

LL/DCD
GND

Twisted pair

—>

J3-18
J3-07

LTST
GND

J1-13

TXCE/RXC
Not used

Twisted pair

—>

J3-24

TXCE
GND

           

J1-30

Shield

 

J4-01

Shield_GND

J1-21

TXD/RXD
Not used

Twisted pair

—>

J4-02

TXD
GND

J1-52

RXD/TXD
Not used

Twisted pair

<—

J4-03

RXD
GND

J1-55
J1-22

RTS/CTS
DTR/DSR

Twisted pair

—>
—>

J4-04
J4-20

RTS
DTR

J1-18
J1-51

CTS/RTS
DSR/DTR

Twisted pair

<—
<—

J4-05
J4-06

CTS
DSR

J1-17
J1-50

DCD/LL
GND

Twisted pair

<—

J4-08
J4-07

DCD
GND

J1-19

TXC/NIL
Not used

Twisted pair

<—

J4-15

TXC
GND

J1-53

RXC/TXCE
Not used

Twisted pair

<—

J4-17

RXC
GND

J1-56
J1-31

LL/DCD
GND

Twisted pair

—>

J4-18
J4-07

LTST
GND

J1-20

TXCE/RXC
Not used

Twisted pair

—>

J4-24

TXCE
GND

           

J1-64

Shield

 

J5-01

Shield_GND

J1-28

TXD/RXD
Not used

Twisted pair

—>

J5-02

TXD
GND

J1-59

RXD/TXD
Not used

Twisted pair

<—

J5-03

RXD
GND

J1-62
J1-29

RTS/CTS
DTR/DSR

Twisted pair

—>
—>

J5-04
J5-20

RTS
DTR

J1-25
J1-58

CTS/RTS
DSR/DTR

Twisted pair

<—
<—

J5-05
J5-06

CTS
DSR

J1-24
J1-57

DCD/LL
GND

Twisted pair

<—

J5-08
J5-07

DCD
GND

J1-26

TXC/NIL
Not used

Twisted pair

<—

J5-15

TXC
GND

J1-60

RXC/TXCE
Not used

Twisted pair

<—

J5-17

RXC
GND

J1-63
J1-65

LL/DCD
GND

Twisted pair

—>

J5-18
J5-07

LTST
GND

J1-27

TXCE/RXC
Not used

Twisted pair

—>

J5-24

TXCE
GND


Table 39 4-Port RS-232 DCE Cable Pinout 

68-Pin
Signal Name
Note
Direction
DB-25 Pin
Signal Name

J1-32
J1-31

GND

Local mode connection

J1-67
J1-65

GND

Local mode connection

J1-1
J1-2
J1-9
J1-16
J1-23
J1-30
J1-31
J1-35
J1-36
J1-43
J1-50
J1-57
J1-64
J1-65
J1-68

GND

Shorting block

J1-1

Shield_GND

Shield

J2-01

Shield_GND

J1-38

RXD/TXD
Not used

Twisted pair

<—

J2-02

TXD
GND

J1-7

TXD/RXD
Not used

Twisted pair

—>

J2-03

RXD
GND

J1-4
J1-37

CTS/RTS
DSR/DTR

Twisted pair

<—
<—

J2-04
J2-20

RTS
DTR

J1-41
J1-8

RTS/CTS
DTR/DSR

Twisted pair

—>
—>

J2-05
J2-06

CTS
DSR

J1-42
J1-36

LL/DCD
GND

Twisted pair

—>

J2-08
J2-07

DCD
GND

J1-40

NIL/TXC
Not used

Twisted pair

—>

J2-15

TXC
GND

J1-6

TXCE/RXC
Not used

Twisted pair

—>

J2-17

RXC
GND

J1-3
J1-2

DCD/LL/
GND

Twisted pair

<—

J2-18
J2-07

LTST
GND

J1-39

RXC/TXCE
Not used

Twisted pair

<—

J2-24

TXCE
GND

           

J1-35

Shield

 

J3-01

Shield_GND

J1-45

RXD/TXD
Not used

Twisted pair

<—

J3-02

TXD
GND

J1-14

TXD/RXD
Not used

Twisted pair

—>

J3-03

RXD
GND

J1-11
J1-44

CTS/RTS
DSR/DTR

Twisted pair

<—
<—

J3-04
J3-20

RTS
DTR

J1-48
J1-15

RTS/CTS
DTR/DSR

Twisted pair

—>
—>

J3-05
J3-06

CTS
DSR

J1-49
J1-43

LL/DCD
GND

Twisted pair

—>

J3-08
J3-07

DCD
GND

J1-47

NIL/TXC
Not used

Twisted pair

—>

J3-15

TXC
GND

J1-13

TXCE/RXC
Not used

Twisted pair

—>

J3-17

RXC
GND

J1-10
J1-36

DCD/LL/
GND

Twisted pair

<—

J3-18
J3-07

LTST
GND

J1-46

RXC/TXCE
Not used

Twisted pair

<—

J3-24

TXCE
GND

           

J1-30

Shield

 

J4-01

Shield_GND

J1-52

RXD/TXD
Not used

Twisted pair

<—

J4-02

TXD
GND

J1-21

TXD/RXD
Not used

Twisted pair

—>

J4-03

RXD
GND

J1-18
J1-51

CTS/RTS
DSR/DTR

Twisted pair

<—
<—

J4-04
J4-20

RTS
DTR

J1-55
J1-22

RTS/CTS
DTR/DSR

Twisted pair

—>
—>

J4-05
J4-06

CTS
DSR

J1-56
J1-50

LL/DCD
GND

Twisted pair

—>

J4-08
J4-07

DCD
GND

J1-54

NIL/TXC
Not used

Twisted pair

—>

J4-15

TXC
GND

J1-20

TXCE/RXC
Not used

Twisted pair

—>

J4-17

RXC
GND

J1-17
J1-31

DCD/LL/
GND

Twisted pair

<—

J4-18
J4-07

LTST
GND

J1-53

RXC/TXCE
Not used

Twisted pair

<—

J4-24

TXCE
GND

           

J1-64

Shield

 

J5-01

Shield_GND

J1-59

RXD/TXD
Not used

Twisted pair

<—

J5-02

TXD
GND

J1-28

TXD/RXD
Not used

Twisted pair

—>

J5-03

RXD
GND

J1-25
J1-58

CTS/RTS
DSR/DTR

Twisted pair

<—
<—

J5-04
J5-20

RTS
DTR

J1-62
J1-29

RTS/CTS
DTR/DSR

Twisted pair

—>
—>

J5-05
J5-06

CTS
DSR

J1-63
J1-57

LL/DCD
GND

Twisted pair

—>

J5-08
J5-07

DCD
GND

J1-61

NIL/TXC
Not used

Twisted pair

—>

J5-15

TXC
GND

J1-27

TXCE/RXC
Not used

Twisted pair

—>

J5-17

RXC
GND

J1-24
J1-65

DCD/LL/
GND

Twisted pair

<—

J5-18
J5-07

LTST
GND

J1-60

RXC/TXCE
Not used

Twisted pair

<—

J5-24

TXCE
GND


8-Port RS-232 Cable Assembly

The 8-port RS-232 cable was designed for use with the Cisco 8-port and 16-port RS-232 asynchronous HWICs (the Cisco HWIC-8A and Cisco HWIC-16A). The router end of the cable consists of a standard 68-pin 2-row D-shell connector. The network end of the cable provides eight standard 8-pin RJ-45 connectors. These cables are available in DTE format only. See Figure 26.

Figure 26 8-Port RS-232 Cable Connector, Network End

Figure 27 shows the 8-port RS-232 cable assembly. Table 40 lists the DTE pinout for the 8-port RS-232 cable. Arrows indicate signal direction: —> means DTE to DCE and <— means DCE to DTE.

Figure 27 8-Port RS-232 Cable Assembly

Table 40 8-Port RS-232 DTE Cable Pinout 

68-Pin
Signal Name
Note
RJ-45 Pin

J1-34
J1-68

GND

Local mode connection

J1-67
J1-65

GND

Local mode connection

J1-4
J1-3

CTS/RTS
DSR/DTR

Twisted pair

J2-01
J2-02

J1-38
J1-36

RXD/TXD
RXD GND

Twisted pair

J2-03
J2-04

J1-36
J1-7

TXD GND
TXD/RXD

Twisted pair

J2-05
J2-06

J1-8
J1-41

DTR/DSR
RTS/CTS

Twisted pair

J2-07
J2-08

       

J1-37
J1-5

CTS/RTS
DSR/DTR

Twisted pair

J3-01
J3-02

J1-39
J1-2

RXD/TXD
RXD GND

Twisted pair

J3-03
J3-04

J1-2
J1-6

TXD GND
TXD/RXD

Twisted pair

J3-05
J3-06

J1-40
J1-42

DTR/DSR
RTS/CTS

Twisted pair

J3-07
J3-08

       

J1-11
J1-10

CTS/RTS
DSR/DTR

Twisted pair

J4-01
J4-02

J1-45
J1-43

RXD/TXD
RXD GND

Twisted pair

J4-03
J4-04

J1-43
J1-14

TXD GND
TXD/RXD

Twisted pair

J4-05
J4-06

J1-15
J1-48

DTR/DSR
RTS/CTS

Twisted pair

J4-07
J4-08

       

J1-44
J1-12

CTS/RTS
DSR/DTR

Twisted pair

J5-01
J5-02

J1-46
J1-9

RXD/TXD
RXD GND

Twisted pair

J5-03
J5-04

J1-9
J1-13

TXD GND
TXD/RXD

Twisted pair

J5-05
J5-06

J1-47
J1-49

DTR/DSR
RTS/CTS

Twisted pair

J5-07
J5-08

       

J1-18
J1-17

CTS/RTS
DSR/DTR

Twisted pair

J6-01
J6-02

J1-52
J1-50

RXD/TXD
RXD GND

Twisted pair

J6-03
J6-04

J1-50
J1-21

TXD GND
TXD/RXD

Twisted pair

J6-05
J6-06

J1-22
J1-55

DTR/DSR
RTS/CTS

Twisted pair

J6-07
J6-08

       

J1-51
J1-19

CTS/RTS
DSR/DTR

Twisted pair

J7-01
J7-02

J1-53
J1-16

RXD/TXD
RXD GND

Twisted pair

J7-03
J7-04

J1-16
J1-20

TXD GND
TXD/RXD

Twisted pair

J7-05
J7-06

J1-54
J1-56

DTR/DSR
RTS/CTS

Twisted pair

J7-07
J7-08

       

J1-25
J1-24

CTS/RTS
DSR/DTR

Twisted pair

J8-01
J8-02

J1-59
J1-57

RXD/TXD
RXD GND

Twisted pair

J8-03
J8-04

J1-57
J1-28

TXD GND
TXD/RXD

Twisted pair

J8-05
J8-06

J1-29
J1-62

DTR/DSR
RTS/CTS

Twisted pair

J8-07
J8-08

       

J1-58
J1-26

CTS/RTS
DSR/DTR

Twisted pair

J9-01
J9-02

J1-60
J1-23

RXD/TXD
RXD GND

Twisted pair

J9-03
J9-04

J1-23
J1-27

TXD GND
TXD/RXD

Twisted pair

J9-05
J9-06

J1-61
J1-63

DTR/DSR
RTS/CTS

Twisted pair

J9-07
J9-08