E. Connectors, Cables, and Pin Assignments

3COM Router – DB9 Socket

COM Port

 

 

Console Port

 

 

 

 

 

 

Signal

DB25 Pin #

Direction

DB9 Pin #

 

Signal

 

 

 

 

 

 

DCE Transmit Data

2

To DTE

3

 

DTE Transmit Data

(TXD)

 

 

 

 

(TXD)

 

 

 

 

 

 

DCE Receive Data

3

From DTE

2

 

DTE Receive Data

(RXD)

 

 

 

 

(RXD)

 

 

 

 

 

 

DCE Request to

4

To DTE

7

 

DTE Request to

Send (RTS)

 

 

 

 

Send (RTS)

 

 

 

 

 

 

DCE Signal Ground

7

5

 

DTE Signal Ground

(SG)

 

 

 

 

(SG)

 

 

 

 

 

 

DCE Carrier Detect

8

To DTE

1

 

DTE Carrier Detect

(CD)

 

 

 

 

(CD)

 

 

 

 

 

 

DCE Data Terminal

20

To DTE

4

 

DTE Data Terminal

Ready (DTR)

 

 

 

 

Ready (DTR)

 

 

 

 

 

 

The following tables provide the pin assignments for connecting the FrameSaver SLV 9128-II NAM’s 8-position communication port to various router auxiliary (AUX) or console ports using standard cables.

Cisco 2500 Series Router – RJ45 Jack

COM Port

 

 

AUX Port

 

 

 

 

 

 

Signal

RJ45 Pin #

Direction

RJ45 Pin #

 

Signal

 

 

 

 

 

 

DCE Receive Data

2

From DTE

6

 

DTE Receive Data

(RXD)

 

 

 

 

(RXD)

 

 

 

 

 

 

DCE Signal Ground

3

4, 5

 

DTE Signal Ground

(SG)

 

 

 

 

(SG)

 

 

 

 

 

 

DCE Transmit Data

4

To DTE

3

 

DTE Transmit Data

(TXD)

 

 

 

 

(TXD)

 

 

 

 

 

 

DCE Data Terminal

5

To DTE

2

 

DTE Data Terminal

Ready (DTR)

 

 

 

 

Ready (DTR)

 

 

 

 

 

 

DCE Request to

7

To DTE

1

 

DTE Request to

Send (RTS)

 

 

 

 

Send (RTS)

 

 

 

 

 

 

E-8

September 2002

9128-A2-GB20-80

Page 430
Image 430
Paradyne 9128-II, CSU, DSU, 9126-II 3COM Router DB9 Socket, COM Port Console Port Signal DB25 Pin # Direction DB9 Pin #