Connector Pin Assignments
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Table Of Contents

Connector Pin Assignments

Serial Console-Interface Connector Pin Assignments

Serial Port Connector

Ethernet Connector Pin Assignments

Ethernet Port Connector

Fiber Connector Type

Cable Pin Assignments


Connector Pin Assignments


This appendix lists the connector pin assignments for the Cisco Content Delivery Engines.

Serial Console-Interface Connector Pin Assignments

Ethernet Connector Pin Assignments

Cable Pin Assignments

Serial Console-Interface Connector Pin Assignments

The serial console-interface connector is a 9-pin, RS-232 D-type, DTE connector. A null modem cable is required to connect a workstation running the Linux or Windows operating system. Table B-1 lists the pin assignments for the serial console interface-connector.

Table B-1 RS-232 Connector Pin Assignments 

Description
Pin
I/O
Signal Name

Data carrier detect; input

1

In

DCD

Receive data; input

2

In

RXD

Transmit data; output

3

Out

TXD

Data terminal ready; output

4

Out

DTR

Interface signal ground

5

GND

Data set ready; input

6

In

DSR

Ready to send; output

7

Out

RTS

Clear to send; input

8

In

CTS

Ring indicator; input

9

In

RI


Serial Port Connector

The CDEs have one standard serial port connector located on the back of the device.

Figure B-1 shows the pin number assignments for the 9-pin, male D-shell serial port connector on the back of the device. These pin number assignments conform to the industry standard for RS-232 communications.

Figure B-1 Serial Port Connector

Table B-2 provides the RJ-45-to-DB-9 pinout information for the interconnections between the terminal server and a CDE.

Table B-2 RJ-45 Connector to DB-9 Pinout

Signal Name/ Function
RJ-45 Pin
RJ-45
DB-9 Pin
Signal Name/ Function

TXD

6

Yellow

2

RXD

RXD

3

Black

3

TXD

DSR

2

Orange

4

DTR

GND

5

Green

5

GND

DTR

7

Brown

6

DSR

RTS

1

Blue

7

CTS

CTS

8

Slate/Grey

8

RTS

GND

4

Red

GND

White

Purple


Ethernet Connector Pin Assignments

The Ethernet connector is an 8-pin, modular RJ-45 connector. Table B-3 through Table B-5 list the Ethernet connector pin assignments.

Table B-3 Ethernet Connector Pin Assignments for T568A

RJ-45 Pin
Wire Color (T568A)
Wire Diagram (T568A)
10BASE-T
100BASE-T
1000BASE-T Signal

1

White/Green

Transmit+

BI_DA+

2

Green

Transmit-

BI_DA-

3

White/Orange

Receive+

BI_DB+

4

Blue

Unused

BI_DC+

5

White/Blue

Unused

BI_DC-

6

Orange

Receive-

BI_DB-

7

White/Brown

Unused

BI_DD+

8

Brown

Unused

BI_DD-


Table B-4 Ethernet Connector Pin Assignments for T568B 

RJ-45 Pin
Wire Color (T568B)
Wire Diagram (T568B)
10BASE-T
100BASE-T
1000BASE-T Signal

1

White/Orange

Transmit+

BI_DA+

2

Orange

Transmit-

BI_DA-

3

White/Green

Receive+

BI_DB+

4

Blue

Unused

BI_DC+

5

White/Blue

Unused

BI_DC-

6

Green

Receive-

BI_DB-

7

White/Brown

Unused

BI_DD+

8

Brown

Unused

BI_DD-


Table B-5 RJ-45 Crossover Cable Pin Assignments for T568B

RJ-45 Pin End 1
Wire Color
Diagram End 1
RJ-45 Pin End 2

1

White/Orange

3

2

Orange

6

3

White/Green

1

4

Blue

7

5

White/Blue

8

6

Green

2

7

White/Brown

4

8

Brown

5


Ethernet Port Connector

The CDEs come with an integrated dual-port Ethernet controller. This controller provides an interface for connecting to 10-Mbps, 100-Mbps, or 1000-Mbps networks; it provides full-duplex (FDX) capability, which enables simultaneous transmission and reception of data on the Ethernet LAN.

To access the Ethernet port, connect a Category 3, 4, or 5 unshielded twisted-pair (UTP) cable to the RJ-45 connector on the back of the device.


Note The 100BASE-TX/1000BASE-TX Ethernet standard requires that the cabling in the network be Category 5 or higher.


Figure B-2 shows the pin number assignments for the Ethernet RJ-45 port.

Figure B-2 RJ-45 Ethernet Port Connector

Fiber Connector Type

The fiber connector type used to connect to the SE dual-fiber NIC cards is the GLC-SX-MM.

Cable Pin Assignments

Figure B-3 through Figure B-5 show the pin assignments for the cable connection for an RS-232 null modem, RJ-45 straight-through cable, and RJ-45 crossover cable, respectively.

Figure B-3 Pin Assignments for RS-232 Null Modem

.

Figure B-4 Pin Assignments and Wiring for an RJ-45 Straight-Through Cable

Figure B-5 Pin Assignments and Wiring for an RJ-45 Crossover Cable