Board Installation; Wiring - UTC Fire and Security Interlogix NX-8E Installation Manual

Board installation

Inside the metal enclosure, there are slots for board insertions. These allow the
PC board to be positioned vertically (Figure 2 below). When you slide the board
between the grooves of the slots, make sure the terminal strip is toward the front
opening (toward you) to allow for the wire connections.
Figure 2: Board installation

Wiring

Table 1 below lists wire lengths for one keypad at the end of the wire. When
connecting more than one keypad to the end of the wire, a higher gauge wire is
required.
Table 1: Maximum keypad wire run
Length in feet
250
500
1000
1500
2500
Figure 3 on page 4 shows the wiring diagram for the NX-8E.
NX-8E Control Panel Installation Manual
Wire gauge for NX-8E
24
20
18
16
14
Chapter 1: Reporting codes
Wire gauge for NX-320 E
22
18
16
14
12
3