Specifications

Installing PCBs
DS2000 Hardware Manual Section 2: PCB Installation ◆ 2-9
2
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 RUN.
4. Using a standard straight-through CAT 5 cable, connect the T1 PCB RJ48C connector to the Telco
Smart Jack or your Channel Service Unit.
Although the T1 PCB can connect directly to the telco’s T1 smart jack, a separately purchased
Channel Service Unit (CSU) between the smart jack and the T1 PCB is recommended. Additionally,
your telco may require a CSU.
Figure 2-13: T1 Trunk PCB Setup
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.