Cisco 2500 Series Hardware Installation and Maintenance - Cabling Specifications [Cisco 2500 Series Routers]

Table Of Contents

Cabling Specifications

Console and Auxiliary Port Signals and Pinouts

BRI Port Pinouts

Serial Cable Assemblies and Pinouts

EIA-530

EIA/TIA-232

EIA/TIA-449

V.35

X.21

Ethernet Cable Assembly and Pinouts

Token Ring Pinouts

Asynchronous Serial Ports

RJ-45 Ethernet Pinouts

RJ-45 Adapter Pinouts

Cabling Specifications

This appendix provides pinouts for the following:

•Console Port Pinouts (RJ-45), Table A-1

•Auxiliary Port Pinouts (RJ-45), Table A-2

•BRI Port Pinouts (RJ-45), Table A-3

•EIA-530 DTE Cable Pinouts (DB-60 to DB-25), Table A-4

•EIA/TIA-232 DTE Cable Pinouts (DB-60 to DB-25), Table A-5

•EIA/TIA-232 DCE Cable Pinouts (DB-60 to DB-25), Table A-6

•EIA/TIA-449 DTE Cable Pinouts (DB-60 to DB-37), Table A-7

•EIA/TIA-449 DCE Cable Pinouts (DB-60 to DB-37), Table A-8

•V.35 DTE Cable Pinouts (DB-60 to 34-Pin), Table A-9

•V.35 DCE Cable Pinouts (DB-60 to 34-Pin), Table A-10

•X.21 DTE Cable Pinouts (DB-60 to DB-15), Table A-11

•X.21 DCE Cable Pinouts (DB-60 to DB-15), Table A-12

•Ethernet (AUI) Cable Pinouts (DB-15), Table A-13

•Token Ring Port Pinouts (DB-9), Table A-14

•Asynchronous Breakout Cable Pinouts (8-Pin RJ-45), Table A-15

•Asynchronous Breakout Cable Pinouts (68-Pin SCSI), Table A-16

•Asynchronous Breakout Cable Pinouts (DB-25), Table A-17

•Asynchronous Cable Pinouts (68-Pin to DB-25), Table A-18

•Ethernet 10BaseT (RJ-45) Port Pinouts, Table A-19

•Ethernet 10BaseT Port Pinouts (For 2505 and 2507 Models), Table A-20

•Pins for the RJ-45, M/F DTE, M/F DCE, and MMOD, Table A-21

•Connection Configuration, Table A-22

•DB-25 to DB-9 Adapter Pinouts, Table A-23

•RJ-45 to DB-9 Adapter Pinouts, Table A-24

Console and Auxiliary Port Signals and Pinouts

The console port is configured as data communications equipment (DCE), and the auxiliary port is configured as data terminal equipment (DTE). The console and auxiliary ports both use RJ-45 connectors. RJ-45-to-DB-25 adapters are available for connection to modems and other external communications equipment. Both ports are configured as asynchronous serial ports.

Following are the pinouts for the console port (see Table A-1), the auxiliary port (see Table A-2), and the adapter (see Table A-21):

Table A-1 Console Port Pinouts (RJ-45)

Console Port (DTE)

Pin¹

Signal

Input/Output

1

-

-

2

DTR

Output

3

TxD

Output

4

GND

-

5

GND

-

6

RxD

Input

7

DSR

Input

8

-

-

¹Any pin not referenced is not connected.

Table A-2 Auxiliary Port Pinouts (RJ-45)

Auxiliary Port (DTE)

Pin¹

Signal

Input/Output

1

RTS

Output

2

DTR

Output

3

TXD

Output

4

GND

-

5

GND

-

6

RXD

Input

7

DSR

Input

8

CTS

Input

¹Any pin not referenced is not connected.

BRI Port Pinouts

The pinouts for the BRI interface port appear in Table A-3.

Table A-3 BRI Port Pinouts (RJ-45)

Pin¹

TE²

NT³

Polarity

3

Transmit

Receive

+

4

Receive

Transmit

+

5

Receive

Transmit

-

6

Transmit

Receive

-

¹Pins 1, 2, 7, and 8 are not used.

²TE refers to terminal terminating layer 1 aspects of TE1, TA, and NT2 functional groups.

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

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. The console, auxiliary, and BRI ports all use RJ-45 connectors.

Warning

Network hazardous voltages are accessible in the BRI cable. If you detach the BRI cable, detach the end away from the router first to avoid possible electric shock. Network hazardous voltages also are accessible on the system card in the area of the BRI port (RJ-45 connector), even when power is turned OFF.

Serial Cable Assemblies and Pinouts

The following illustrations and tables provide assembly drawings and pinouts for the EIA-530 DCE, and EIA/TIA-232, EIA/TIA-449, V.35, and X.21 DTE and DCE cables.

Note   All serial cables have a DB-60 connector on the router end. The following pinouts represent only the router ends of the cables. Because of the small pins on the DB-60 connector, manufacturing and soldering these cables yourself might be very difficult and is not recommended.

EIA-530

Figure A-1 shows the EIA-530 serial cable assembly, and Table A-4 lists the pinouts. Arrows indicate signal direction. A right arrow (—>) indicates DTE to DCE, and a left arrow (<—) indicates DCE to DTE.

Figure A-1 EIA-530 Serial Cable Assembly

Table A-4 EIA-530 DTE Cable Pinouts (DB-60 to DB-25)

60 Pin¹

Signal

25 Pin

Signal

Direction
DTE DCE²

60 Pin

Signal

25 Pin

Signal

Direction
DTE DCE

J1-11
J1-12

TxD/RxD+
TxD/RxD-

J2-2
J2-14

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

—>
—>

J1-5
J1-6

DCD/DCD+
DCD/DCD-

J2-8
J2-10

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

<—
<—

J1-28
J1-27

RxD/TxD+
RxD/TxD-

J2-3
J2-16

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

<—
<—

J1-24
J1-23

TxC/RxC+
TxC/RxC-

J2-15
J2-12

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

<—
<—

J1-9
J1-10

RTS/CTS+
RTS/CTS-

J2-4
J2-19

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

—>
—>

J1-26
J1-25

RxC/TxCE+
RxC/TxCE-

J2-17
J2-9

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

<—
<—

J1-1
J1-2

CTS/RTS+
CTS/RTS-

J2-5
J2-13

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

<—
<—

J1-44
J1-45

LL/DCD
Circuit_GND

J2-18
J2-7

LL
Circuit_ GND

—>
-

J1-3
J1-4

DSR/DTR+
DSR/DTR-

J2-6
J2-22

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

<—
<—

J1-7
J1-8

DTR/DSR+
DTR/DSR-

J2-20
J2-23

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

—>
—>

J1-46
J1-47

Shield_GND
MODE_2

J2-1
-

Shield
-

Shorted

J1-13
J1-14

TxCE/TxC+
TxCE/TxC-

J2-24
J2-11

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

—>
—>

J1-48
J1-49

GND
MODE_1

-
-

-
-

Shorted

J1-51
J1-52

GND
MODE_DCE

-
-

-
-

Shorted

¹Any pin not referenced is not connected.

²The EIA-530 interface cannot be operated in DCE mode. A DCE cable is not available for the EIA-530 interface.

EIA/TIA-232

Figure A-2 shows the EIA/TIA-232 cable assembly; Table A-5 lists the DTE pinouts; and Table A-6 lists the DCE pinouts. Arrows indicate signal direction. A right arrow (—>) indicates DTE to DCE, and a left arrow (<—) indicates DCE to DTE.

Figure A-2 EIA/TIA-232 Cable Assembly

Table A-5 EIA/TIA-232 DTE Cable Pinouts (DB-60 to DB-25)

60 Pin¹

Signal

Description

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

J1-41
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
-

¹Any pin not referenced is not connected.

Table A-6 EIA/TIA-232 DCE Cable Pinouts (DB-60 to DB-25)

60 Pin¹

Signal

Description

Direction

25 Pin

Signal

J1-50
J1-51

MODE_0
GND

Shorting Group

-

-

-

J1-46

Shield GND

Single

-

J2-1

Shield GND

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
-

¹Any pin not referenced is not connected.

EIA/TIA-449

Figure A-3 shows the EIA/TIA-449 cable assembly; Table A-7 lists the DTE pinouts; Table A-8 lists the DCE pinouts. Arrows indicate signal direction. A right arrow (—>) indicates DTE to DCE, and a left arrow (<—) indicates DCE to DTE.

Figure A-3 EIA/TIA-449 Cable Assembly

Table A-7 EIA/TIA-449 DTE Cable Pinouts (DB-60 to DB-37)

60 Pin¹

Signal

Description

Direction

37 Pin

Signal

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

¹Any pin not referenced is not connected.

Table A-8 EIA/TIA-449 DCE Cable Pinouts (DB-60 to DB-37)

60 Pin¹

Signal

Description

Direction

37 Pin

Signal

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

¹Any pin not referenced is not connected.

V.35

Figure A-4 shows the V.35 cable assembly; Table A-9 lists the DTE pinouts; Table A-10 lists the DCE pinouts. Arrows indicate signal direction. A right arrow (—>) indicates DTE to DCE, and a left arrow (<—) indicates DCE to DTE.

Figure A-4 V.35 Cable Assembly

Table A-9 V.35 DTE Cable Pinouts (DB-60 to 34-Pin)

60 Pin¹

Signal

Description

Direction

34 Pin

Signal

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-

¹Any pin not referenced is not connected.

Table A-10 V.35 DCE Cable Pinouts (DB-60 to 34-Pin)

60 Pin¹

Signal

Description

Direction

34 Pin

Signal

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-

¹Any pin not referenced is not connected.

X.21

Figure A-5 shows the X.21 cable assembly; Table A-11 lists the DTE pinouts; Table A-12 lists the DCE pinouts. Arrows indicate signal direction. A right arrow (—>) indicates DTE to DCE, and a left arrow (<—) indicates DCE to DTE.

Figure A-5 X.21 Cable Assembly

Table A-11 X.21 DTE Cable Pinouts (DB-60 to DB-15)

60 Pin¹

Signal

Description

Direction

15 Pin

Signal

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
-

¹Any pin not referenced is not connected.

Table A-12 X.21 DCE Cable Pinouts (DB-60 to DB-15)

60 Pin¹

Signal

Description

Direction

15 Pin

Signal

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
-

¹Any pin not referenced is not connected.

Ethernet Cable Assembly and Pinouts

Figure A-6 shows an Ethernet (AUI) cable assembly, and Table A-13 lists an AUI cable pinouts.

Figure A-6 Ethernet (AUI) Cable Assembly

Table A-13 Ethernet (AUI) Cable Pinouts (DB-15)

Pin¹

Ethernet Circuit

Signal

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

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

¹Any pin not referenced is not connected.

Token Ring Pinouts

The pinouts for the Token Ring interface port is in Table A-14.

Table A-14 Token Ring Port Pinouts (DB-9)

9 Pin¹

Signal

1

Receive

3

+5V²

5

Transmit

6

Receive

9

Transmit

¹Pins 2, 4, 7, and 8 are ground.

²600 mA maximum.

Asynchronous Serial Ports

Figure A-7 shows the RJ-45 breakout cable with pinouts for the 68-pin SCSI port and the RJ-45 serial port. Table A-15 contains the pinouts for the RJ-45 end, and Table A-16 contains the pinouts for the 68-pin SCSI type connector. Refer to the section "RJ-45 Adapter Pinouts" for cable and adapter configurations that can be used to connect terminals and modems to Cisco 2500 series products.

Figure A-7 Asynchronous Serial Interface Breakout Cable Assembly

Table A-15 Asynchronous Breakout Cable Pinouts (8-Pin RJ-45)

8-Pin RJ-45

Signal

Direction

1

CTS

<—

2

DSR/DCD

<—

3

RXD

<—

4

GND

-

5

GND

-

6

TXD

—>

7

DTR

—>

8

RTS

—>

Table A-16 Asynchronous Breakout Cable Pinouts (68-Pin SCSI)

RJ-45 Plug

Pin

Signal

68-Pin

SCSI (J1)

1

8

RTS

2

7

DTR

36

6

TXD

3

5

TXD GND

37

4

RXD GND

4

3

RXD

38

2

DSR

5

1

CTS

39

2

8

RTS

6

7

DTR

40

6

TXD

7

5

TXD GND

41

4

RXD GND

8

3

RXD

42

2

DSR

9

1

CTS

43

3

8

RTS

10

7

DTR

44

6

TXD

11

5

TXD GND

45

4

RXD GND

12

3

RXD

46

2

DSR

13

1

CTS

47

4

8

RTS

14

7

DTR

48

6

TXD

15

5

TXD GND

49

4

RXD GND

16

3

RXD

50

2

DSR

17

1

CTS

51

5

8

RTS

18

7

DTR

52

6

TXD

19

5

TXD GND

53

4

RXD GND

20

3

RXD

54

2

DSR

21

1

CTS

55

6

8

RTS

22

7

DTR

56

6

TXD

23

5

TXD GND

57

4

RXD GND

24

3

RXD

58

2

DSR

25

1

CTS

59

7

8

RTS

26

7

DTR

60

6

TXD

27

5

TXD GND

61

4

RXD GND

28

3

RXD

62

2

DSR

29

1

CTS

63

8

8

RTS

30

7

DTR

64

6

TXD

31

5

TXD GND

65

4

RXD GND

32

3

RXD

66

2

DSR

33

1

CTS

67

Figure A-8 shows the DB-25 breakout cable with pinouts for the 68-pin port and the DB-25 port. Table A-17 lists the pinouts for the DB-25 end, and Table A-18 lists the pinouts for the 68-pin connector end.

Figure A-8 Asynchronous Serial Interface Breakout Cable Assembly (68-Pin to DB-25)

Table A-17 Asynchronous Breakout Cable Pinouts (DB-25)

DB-25 Plug¹

Signal

Direction

4

RTS

—>

20

DTR

—>

2

TXD

—>

7

TXD GND

—

7

RXD GND

—

3

RXD

<—

8

DSR

<—

5

CTS

<—

¹Any pin not referenced is not connected.

Table A-18 Asynchronous Cable Pinouts (68-Pin to DB-25)

DB-25 Plug

Pin

Signal

68-Pin

(J1)

1

4

RTS

2

20

DTR

36

2

TXD

3

7

TXD GND

37

7

RXD GND

4

3

RXD

38

8

DSR

5

5

CTS

39

2

4

RTS

6

20

DTR

40

2

TXD

7

7

TXD GND

41

7

RXD GND

8

3

RXD

42

8

DSR

9

5

CTS

43

3

4

RTS

10

20

DTR

44

2

TXD

11

7

TXD GND

45

7

RXD GND

12

3

RXD

46

8

DSR

13

5

CTS

47

4

4

RTS

14

20

DTR

48

2

TXD

15

7

TXD GND

49

7

RXD GND

16

3

RXD

50

8

DSR

17

5

CTS

51

5

4

RTS

18

20

DTR

52

2

TXD

19

7

TXD GND

53

7

RXD GND

20

3

RXD

54

8

DSR

21

5

CTS

55

6

4

RTS

22

20

DTR

56

2

TXD

23

7

TXD GND

57

7

RXD GND

24

3

RXD

58

8

DSR

25

5

CTS

59

7

4

RTS

26

20

DTR

60

2

TXD

27

7

TXD GND

61

7

RXD GND

28

3

RXD

62

8

DSR

29

5

CTS

63

8

4

RTS

30

20

DTR

64

2

TXD

31

7

TXD GND

65

7

RXD GND

32

3

RXD

66

8

DSR

33

5

CTS

67

RJ-45 Ethernet Pinouts

Table A-19 lists the pinouts for an Ethernet based RJ-45, and Table A-20 lists pinouts for the Ethernet on a model 2505 or model 2507.

Table A-19 Ethernet 10BaseT (RJ-45) Port Pinouts

Pin¹

Description

1

TX+

2

TX-

3

RX+

4

—

5

—

6

RX-

7

—

8

—

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

Table A-20 Ethernet 10BaseT Port Pinouts (For 2505 and 2507 Models)

Pin

Signal

1

RX+

2

RX-

3

TX+

6

TX-

RJ-45 Adapter Pinouts

Refer to Table A-21 for a list of the pins used on the RJ-45 connector, the male/female DTE adapter., the male/female DCE adapter, and the male modem adapter used to connect terminals and modems to Cisco 2500 series products. The connection of pins between the RJ-45 connector and the end device depends on the type of cable used, either straight or rolled. A straight cable connects pin 1 to pin 1, pin 2 to pin 2, and so on. A rolled cable connects pin 1 to pin 8, pin 2 to pin 7, and so on. Cisco 2500 Series products now ship with a rolled cable. Refer to Table A-22 for the cable and adapter configurations that can be used to connect terminals and modems to Cisco 2500 series products. Table A-23 and Table A-24list the suggested adapter pinouts.

Table A-21 Pins for the RJ-45, M/F DTE, M/F DCE, and MMOD

Cable

DB-25 Adapters

RJ-45 Pins

M/F DTE Pins¹

M/F DCE Pins

MMOD Pins²

1

4

5

5

2

20

6

8

3

2

3

3

4

7

7

7

5

7

7

7

6

3

2

2

7

6

20

20

8

5

4

4

¹The FDTE adapter that is available through Cisco is labeled "Terminal."

²The MMOD adapter that is available through Cisco is labeled "Modem."

Table A-22 Connection Configuration

Cisco 2500 Port

RJ-45 Cable Type

DB-25 Adapter

End Device

Console/aux

Rolled¹

FDTE

Terminal

Console/aux

Straight

FDCE

Terminal

Console/aux

Straight

MDCE²

Modem

Console/aux

Rolled1

MDTE2

Modem

Aux/console

Rolled1

MMOD

Modem

¹An octal cable or RJ-45 breakout cable is equivalent to a rolled cable.

²Modify the adapter by removing DB-25 pin 6 and placing it into the pin 8 position.

Table A-23 lists suggested DB-25 to DB-9 adapter pinouts.

Table A-23 DB-25 to DB-9 Adapter Pinouts

DB-25 Pin

Signal

DB-9 Pin

2

TXD

3

3

RXD

2

4

RTS

7

5

CTS

8

6

DSR

6

8

DCD

1

20

DTR

4

Table A-24 lists suggested RJ-45-to-DB-9 adapter pinouts.

Table A-24 RJ-45 to DB-9 Adapter Pinouts

RJ-45 Pin

Signal

DB-9 Pin

1

RTS

7

2

DTR

4

3

TXD

3

4

GND

5

5

GND

5

6

RXD

2

7

DSR

6

8

CTS

8