Cisco Systems OL-31454-01 manual RS-232 DB-9 Cable Pinouts, Rxc, Ltst, Txce, Sgnd

Models: OL-31454-01

1 114
Download 114 pages 46.46 Kb
Page 75
Image 75

Chapter 3 Installing and Connecting the Router

Connectors and Cabling for the 8-Port Asynchronous/ Synchronous RS-232 GRWIC

Table 3-12

Pinouts for Male and Female DB-25 Cables (continued)

 

 

 

 

Pin

 

Signal

Direction

Description

 

 

 

 

 

16

 

Unassigned

 

 

 

 

 

17

 

RXC

Output

Receive Clock

 

 

 

 

 

18

 

LTST

Input

Loopback Test (also Local Loopback)

 

 

 

 

 

19

 

Unassigned

 

 

 

 

 

20

 

DTR

Input

Data Terminal Ready

 

 

 

 

 

21

 

Unassigned

 

 

 

 

 

22

 

Unassigned

 

 

 

 

 

23

 

Unassigned

 

 

 

 

 

24

 

TXCE

Input

Transmit Clock Enable

 

 

 

 

 

25

 

Unassigned

 

 

 

 

 

RS-232 DB-9 Cable Pinouts

Table 3-13shows the pinouts for the CAB-9AS-M (High Density 4-port EIA-232 to DB-9, DTE) cable:

Table 3-13

Pinouts for CAB-9AS-M (Male DB-9)

 

 

 

 

Pin

 

Signal

Direction

Description

 

 

 

 

 

1

 

 

 

 

 

 

 

2

 

RD

Input

Receive Data. Arriving data from DCE.

 

 

 

 

 

3

 

TD

Output

Transmit Data. Sending data from DTE.

 

 

 

 

 

4

 

 

 

 

 

 

 

5

 

SGND

Ground

 

 

 

 

 

6

 

 

 

 

 

 

 

7

 

RTS

Output

Request to Send. Raised by DCE when it

 

 

 

 

wishes to send. Expects CTS from DTE.

 

 

 

 

 

8

 

CTS

Input

Clear to Send. Raised by DCE in response

 

 

 

 

to RTS from DTE.

 

 

 

 

 

9

 

 

 

 

 

 

 

 

 

Cisco 2010 Connected Grid Router Hardware Installation Guide

 

 

 

 

 

 

OL-31454-01

 

 

3-35

 

 

 

 

 

Page 75
Image 75
Cisco Systems OL-31454-01 manual RS-232 DB-9 Cable Pinouts, Rxc, Ltst, Txce, Sgnd