Installing T1/E1/Pri Cards - NEC DSX-160 Hardware Manual

Installing T1/E1/PRI Cards

Normally you connect the T1/E1/PRI Card to a separately-purchased Channel Service Unit (CSU). Use a
standard straight-through CAT 5 cable to connect the T1/E1/PRI Card to the CSU. The CSU in turn connects
to the telco smart jack.
The T1/E1/PRI Card also provides 32E1 support. E1 is not used in North America.
❥
You can install a T1/E1/PRI Card in any slot except slot 1.
❥
A commercially available T1 Tester is recommended.
❥
and jumpers are not
CN7 CN9
required for T1 installations.
DSX-80/160 Hardware Manual
Mode switch
CN9
CN7
RJ48C
Connector
Straight-Through
Figure 19: Setting Up the T1/E1/PRI Card
1 2 3 4 5 6 7 8
RJ48C Connector
RS232 Port
CAT 5 Cable
Installing Cards
RX1 T
RX1 R
TX1 T
TX1 R
Pinouts
T1 Grounding Requirements
Be sure to run a 12 AWG
jumper wire from the SG (Sig-
nal Ground) lug to the ETH
(Earth Ground) lug.
Telco
Smart Jack
Installation ◆ 37