Installation manual

Installation Manual
150933 / Rev. 9/96 13
Class A Supervised Input Circuits
The configuration shown in Figure 4-4 shows class A supervised wiring from a fire panel to the
Model 5395 board. Pay close attention to the polarities when wiring a panel to the 5395 and
follow these requirements:
• When wiring to terminal 18 on the 5395, you must use two separate wires. Do not loop a
single wire or twist two conductor wires together.
• Do not use notification appliances on class A circuits connected to a 5395 for input. The
5395 will detect voltage across the input circuits, but is not designed to pass the added
current load from notification appliances.
9
1
Input 2
10
211
3
12
4
13
5
14
6
15
7
16
8
17 18
Model
5395
Input 1
Trouble
Relay
classain
-
+
OUT1OUT2
OUT3
OUT4
AUX
18 18
+
-
-
+
In
Out
Class A notification
outputs from fire panel
looping
single wire
twisting
two wires
18
two separate
wires
Class A
Supervised
Notification
Circuits
19
Incorrect
correct
Figure 4-4 Class A Supervised Input/Output Connections
4.4.3 Class B Supervised Wiring
Figure 4-5 shows how to wire for Class B input and output supervision. Use in/out wiring
methods for proper supervision. (See page 15 for notification appliances that can be used with
the 5395.)
Class B Output Notification Circuits
Figure 4-5 shows four, 1.5 amp devices wired as class B circuits.
Place a 4.7k ohm EOL resistor (provided) at the end of each loop to enable notification output
supervision when using all outputs as class B notification circuits. The 4.7k EOLs must be wired
to the terminals whether or not you are using all output terminals.