Nortel Networks 114200-E manual Table C-15. Service Modem Port DB-9 Pin Assignments

Models: 114200-E

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Installing and Operating Passport ARN Routers

The connector pin assignment described in Table C-15 shows signal and pin assignments for the modem port.

Table C-15. Service Modem Port DB-9 Pin Assignments

Pin Assignment

 

Pin No.

Signal Name

Direction

 

 

 

 

 

 

 

1

DCD (Data carrier detect)

From modem

 

 

 

 

 

 

 

2

TXD (Transmit data)

To modem

 

 

 

 

 

Pin 1

 

3

RXD (Receive data)

From modem

 

 

 

 

 

 

4

DSR (Data set ready)

From modem

 

 

 

 

 

 

 

5

GND

N/A

 

 

 

 

 

 

 

6

DTR (Data terminal ready)

To modem

 

Pin 9

 

 

 

 

7

CTS (Clear to send)

From modem

 

 

 

 

 

 

 

 

 

8

RTS (Request to send)

To modem

 

 

 

 

 

 

 

9

Not used

N/A

 

 

 

 

 

C-18

114200-E Rev 00

Page 142
Image 142
Nortel Networks 114200-E manual Table C-15. Service Modem Port DB-9 Pin Assignments