UTC Fire and Security interlogix AL-1255 Installation Manual page 12

4 Alliance 4-Door/Elevator Controller DGP
Installation Manual
6. Slide the DGP board's terminal blocks together as shown in Figure 3 and mount them to the board.
Figure 3. Terminal block assembly
7. Use four 6/32 x 1/4 in. screws with internal star washers to mount the board (Figure 4) in the enclosure
(Figure 2 on page 3). To ensure proper grounding, tighten screws securely.
Figure 4. Controller board
Power inputs,
auxiliary alarms,
communication
outputs, and
unlocked relays
RX0
TX0 (OK)
Address Mode
L1
L2
L3
L4
Alarm inputs
Kill
RX1
TX1
RS232
Bell
output
Door controls
J2 Comms
To AL-1810/1813
relay output module