NEC DSX-160 - Installing T1;E1;PRI Cards

Installing Cards
DSX-80/160 Hardware Manual Installation ◆ 37
Installation
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.
Figure 19: Setting Up the T1/E1/PRI Card
E1
T1
CN9
E1
T1
CN7
CN9
CN7
80061 - 2
1 2 3 4 5 6 7 8
RX1 T
RX1 R
TX1 T
TX1 R
RJ48C Connector
Pinouts
RJ48C
Connector
Mode switch
RS232 Port
Straight-Through
CAT 5 Cable
Telco
Smart Jack
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.
CN7 and CN9 jumpers are not
required for T1 installations.