F3200/NDU AS4428.1 Installation Manual
Document No: LT0255
Installation & Wiring
Page 5-26
5 July 2016
Issue 1.22
5.6.3
CONTROLLING EVACUATION CIRCUIT DIRECTLY
Two poles of a relay on the 8 Relay Module can be used to directly control a circuit of 24V
evacuation devices (sounders, AVI Mk2s, etc).
This requires the CN0260 and CN0488 connector parts to be soldered in to the spare relay
pole position.
Figure 5.6.6 shows the wiring for this. Pole 1 is the connector terminals fitted as standard
and Pole 2 is the spare set soldered in.
Note the relay output must be programmed so that supervision of the wiring is disabled when
the relay is activated (ACT = No). It is suggested 2 x 27k EOL resistors be used. Place two
in parallel if only one branch is used, and 1 at each end of two branches.
Note that this configuration requires that the relay confirmation (ACT) be disabled.
FIG 5.6.6
EXAMPLE OF A SUPERVISED EVAC CCT USING 2 POLES OF AN 8RM RELAY
EOLR
2 x 27k 1 branch
1 x 27k on each of 2 branches
+VBF
NO
Pole 2 NC
C
Pole 1 NO
NC
C
S
Link Fitted
0V
