Installation Steps
61179641AL1-5C
3-13
Network Connections
Network connections are accomplished via the 50-pin amphenol connector labeled
T1/E1 1-4
. See
for the pinout of the T1/E1 interface and the analog modem.
Figure 3-9. Total Access 1248 Network Connection
Table 3-4. T1/E1/Modem Interface Pinout
Pin Numbers
Description
1, 26
RX Tip/Ring 1
2, 27
TX Tip/Ring 1
3, 28
RX Tip/Ring 2
4, 29
TX Tip/Ring 2
5, 30
RX Tip/Ring 3
6, 31
TX Tip/Ring 3
7, 32
RX Tip/Ring 4
8, 33
TX Tip/Ring 4
9, 34
Unused
10, 35
Unused
11, 36
Unused
12, 37
Unused
13, 38
Unused
14, 39
Unused
15, 40
Unused
16, 41
Unused
17–24
Unused
42–49
Unused
25, 50
Modem Tip/Ring
PORTS 1-24
OUT
EXPANSION
-48V.....,5.0A
USE COPPER CONDUCTORS ONLY!
FAN MODULE
1179675L1
1179641AL1
A
-48V RET
-48V
RET
A
T1/E1 1-4