User's Manual Part 1

Chapter 3 Installation
3.12 Shelter/Room Alarm Connections
During the installation procedure, several shelter/room alarm contacts/sensors (where
applicable) can be connected to the DRU Break Out Board.
The following steps should be performed to connect an external alarm to the DRU:
1. Run a cable from the alarm contact/sensor to the DRU.
2. Loosen the domed sealing nut on the cable gland marked “ALARM”, which is located
on the bottom-left side of the DRU – see Figure 3-29
.
3. Feed approximately 72 inches of cable into the DRU and tighten the domed sealing
nut on the cable gland.
4. Run the cable along the bottom of the DRU, then up the left wall to the external
alarm terminal block – see Figure 3-32
.
5. Remove 4 inches of the outer insulation to expose the individual wires.
6. Remove 0.2 inches of insulation from the wires to expose the copper conductors.
7. Insert the wires into the appropriate terminal block contacts and tighten the clamping
screws – see Table 3-10
for a list of contacts.
Figure 3-32 Break Out Board Installed in DRU
SX03-10000-01-M01 3-40