T1 Trunk Pcb - NEC DS2000 Hardware Manual

T1 Trunk PCB

The T1 Trunk PCB gives the system a maximum of 24 digital T1 trunks in a single PCB slot. The available
trunk types include:
G
Loop Start (DTMF and Dial Pulse)
G
Ground Start (DTMF and Dial Pulse)
G
Direct Inward Dial (DID) Wink Start (DTMF and Dial Pulse)
G
Direct Inward Dial (DID) Immediate Start (DTMF and Dial Pulse)
G
E&M Tie Line Wink Start (DTMF and Dial Pulse)
G
E&M Tie Line Immediate Start (DTMF and Dial Pulse)
Refer to T1 Trunking in the DS1000/2000 Software Manual on the System Document CD that came with
your system for more on T1 programming and operation.
To install the T1 Trunk PCB (Figure 2-10) (Figure 2-11):
1. Set jumpers
2. Plug in T1 Trunk PCBs as required. See System Configuration on page 1-4 for more.
3. Set the mode switch on each T1 PCB to
4. Using a standard straight-through CAT 5 cable, connect the T1 PCB LAN Connector to the Telco
Smart Jack or your Channel Service Unit.
that you purchase and install a separate Channel Service Unit (CSU). This unit installs between the
smart jack and the T1 PCB.
DS2000 Hardware Manual
CN7 and CN9 to the T1
Although the T1 PCB can connect directly to the telco's T1 smart jack, your telco may require
Mode switch
CN9
CN7
LAN
Connector
Straight-Through
CAT 5 Cable
Figure 2-10: T1 Trunk PCB
position.
RUN .
RX1 T
RX1 R
TX1 T
TX1 R
1 2 3 4 5 6 7 8
LAN Connector
Pinouts
RS232 Port
Telco
Smart Jack
Section 2: PCB Installation N 2-7
Installing PCBs
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.
2