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50 Audio Command Center Series Manual — P/N 51889:E1 6/8/2010
Installation Output Circuits
In Example 1 illustrated below, the ACC-25/50 Series panel will trigger the ACC-25/50DA(s)
when All-Call is activated for emergency or general paging.
The maximum line resistance from the main ACC-25/50 Series to the last ACC-25/50DA is 200
ohms (100 ohms per conductor).
The MR-101C (one Form-C relay) and MR-201C (two Form-C relays), which are manufactured by
Air Products and Controls, include an enclosure.
Figure 3.8 Example 1 - Activating Multiple ACC-25/50DAs with Master CMD Output Bus
4.7K
P/N: 27072
(Alarm polarities shown)
Activated when the All-
Call button, remote
microphone key or
External Page Module
is pressed (single zone
configuration only)
ACC-25/50DA
ACC-25/50 Series
ac25out.wmf
Master CMD
Output Bus
ACC-25/50DA
Master CMD
Bus In/Out
Master CMD
Bus In/Out
Style Z (Class A)
Figure 3.9 Example 2 - Activating MR-101C (or MR-201C) with Master CMD Output Bus
Relays may be used to activate an FACP initiating circuit.
CAUTION! All wiring to relay must be in same room within
20 feet of FACP and in conduit.
Relay Energized LED
SPDT Contacts
10 amps @ 115 VAC
a
c
2
5
m
r
1
0
.
w
m
f
Master ACC-25/50 Series
Activated when the All-Call button,
remote microphone key or External
Page Module is pressed (single
zone configuration only)