Cisco Systems 3545 PRI, 3545 Serial manual Signaling Interface Pin Layout, DB-25 Connector, 2-26

Chapter 2 Installing the Cisco Unified Videoconferencing 3545 Gateway

Serial Gateway Cable Connections and Pin-outs

Table 2-8	Serial Gateway Signaling Interface Cable Pin-out (continued)
Signal Name		Mnemonic	RS-366 (DB-25)
Digit Signal Circuit 1		NB1	14
Digit Signal Circuit 2		NB2	15
Digit Signal Circuit 4		NB4	16
Digit Signal Circuit 8		NB8	17
Receive Common		RC	18
Send Common		SC	19
Data Link Occupied		DLO	22

Signaling Interface Pin Layout

This section illustrates the pin layout for the serial gateway signaling cable connector.

DB-25 Connector

Figure 2-19shows the DB-25 pin layout.

Figure 2-19 DB-25 Pin Layout

1

14

2

15

3

16

4

17

5

18

6

19

7

20

8

21

9

22

10

23

11

24

12

25

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	Installation and Upgrade Guide for Cisco Unified Videoconferencing 3545 PRI Gateway and 3545 Serial Gateway Release 5.6
2-26	OL-17011-01