Version 6.4 21 October 2011
Hardware Installation Manual 5. Cabling the Device
5.3 Connecting to E1/T1 Trunks
Depending on your model, the device connects to E1/T1 trunks using the following
connection type:
Telco connector for devices with 16 spans – see Section 5.3.1 on page 21
RJ-48c connector for devices with 1, 2, 4, or 8 spans – see Section 5.3.2 on page 23
5.3.1 Connecting 16-Span Device using Telco Connector
The procedure below describes how to connect the 16-span device. This connection uses
a 50-pin male Telco cable connector with pinouts as shown in the table below:
Table 5-1: E1/T1 Connector Pinouts for Each 50-Pin Telco Connector
E1/T1 Trunk Number Tx Pins (Tip/Ring) Rx Pins (Tip/Ring)
1 to 8 9 to 16
1 9 27/2 26/1
2 10 29/4 28/3
3 11 31/6 30/5
4 12 33/8 32/7
5 13 35/10 34/9
6 14 37/12 36/11
7 15 39/14 38/13
8 16 41/16 40/15
The 50-pin male Telco cable mates with the device's female connector shown in the figure
below:
Figure 5-2: Device's 50-Pin Female Telco
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