Справочник Пользователя для Cisco Systems 3545 PRI
2-25
Installation and Upgrade Guide for Cisco Unified Videoconferencing 3545 PRI Gateway and 3545 Serial Gateway Release 5.6
OL-17011-01
Chapter 2 Installing the Cisco Unified Videoconferencing 3545 Gateway
Serial Gateway Cable Connections and Pin-outs
DB-25 Connector
shows the DB-25 pin layout.
Figure 2-18
DB-25 Pin Layout
Signaling Interface Cable Pin-out Configuration
1
14
15
16
17
18
19
20
21
22
23
24
25
2
3
4
5
6
7
8
9
10
11
12
13
157145
Table 2-8
Serial Gateway Signaling Interface Cable Pin-out
Signal Name
Mnemonic
RS-366 (DB-25)
Shield
—
1
Digit Present
DPR
2
Abandon Call & Retry
ACR
3
Call Request
CRQ
4
Present Next Digit
PND
5
Power Indication
PWI
6
Signal Ground
—
7
Distant Station
Connection
Connection
DSC
13