Fire-Lite ACC-25/50DAZS Distributed Audio Panel - Manual (Page 41)

Distributed Audio Panel Manual — P/N 52265:B1 6/8/2010 41
Output Circuits Installation
3.6 Output Circuits
3.6.1 Trouble Relay - TB1
The main circuit board provides a Form-C Trouble relay, for independent monitoring, rated for 2.0
amps @ 30 VDC (resistive) and 0.6 amp @ 30 VAC (resistive). This relay is ‘fail safe’, meaning
that it is normally energized. Should system power shut off, this relay will deenergize, transferring
its contacts.
3.6.2 AC Power Loss Relay - TB11
The main circuit board provides a Form-C AC Power Loss relay rated for 2.0 amps @ 30 VDC
(resistive) and 0.6 amps @ 30 VAC (resistive).
ac2
5
da
tb
12
.wmf
Remote Power Supply
or Battery Charger
Normally Open
Contacts
1 2
Figure 3.9 Trouble Contact Input Terminal
Figure 3.10 Trouble Relay
TB1
25
50
daa
cr
l.w
m
f
Shown in energized,
nontrouble condition
Figure 3.11 AC Power Loss Relay
TB11
Shown in energized,
normal AC Power condition
25
50
da
acr
l.w
mf