NEC DS2000 Hardware Manual page 26

Installing PCBs
4 Circuit Caller ID Daughter Board
For Caller ID capability, install 4 circuit Caller ID PCB daughter boards (P/N 92012) on the 4ATRU PCBs
(P/N 80010A). The Caller ID PCB provides Caller ID capability for all four trunk circuits on the 4ATRU
PCB. Every 4ATRU PCB in the system can have a Caller ID daughter board. If your system uses software
version 02.02.14 or higher and 80010B or 80011B ATRU PCBs, DSP-based Caller ID is built in. You do not
need to install Caller ID PCB daughter boards. Check for availability.
To install the daughter board (Figure 2-11):
1. Remove the metal bracket that holds the PCBs in place.
2. Remove the 4ATRU PCB.
3. Remove the headers from 4ATRU PCB connector CN3 and store in a safe place.
4. Align the Caller ID PCB standoffs over the holes located in the 4ATRU PCB.
5. Push the PCB down until the standoffs snap into place.
6. Plug the 4ATRU PCB back into the system cabinet.
7. Refer to your system's Quick Setup Guide for additional feature information and any required system
programming.
CN3
Remove
headers
2-8 Section 2: PCB Installation
If you are installing Caller ID on a 4ATRU PCB in the last slot, you may have to adjust your
system's ground wire connection so it won't obstruct the daughter board.
If you install a P/N 92012 Caller ID PCB on an 8ATRU PCB P/N 80011A, you will get Caller
ID service only on the first four PCB trunk circuits.
Note that the CN2 connector on the Caller ID PCB should be above the CN3 connector on the
4ATRU PCB. CN1 on the Caller ID PCB should be above CN2.
Figure 2-11: Installing the 4 Circuit Caller ID Daughter Board
Push PCB down at outside edges
until standoffs snap into place
CN2
CN2
CN1
DS2000 Hardware Manual