20
ACS Manual —
P/N 15842:
N3
5/4/2022
Installation, Configuration, and Programming
Mount the Cabinet or Backbox
5.3 Mount the Cabinet or Backbox
Select an appropriate knockout on the enclosure for your wiring to run through and snap it out. Fasten the
cabinet or backbox to the wall. Ground the enclosure to a solid metallic ground, such as a grounded cold
water pipe. Pull all annunciator wiring into the enclosure as illustrated in Figure 5.5. Connect annunciator
wiring to the removable terminal blocks at this time as specified in Section 5.5, “EIA-485 Circuit Connec-
tions”.
5.4 Mount Annunciators and Expanders
Set the address and DIP switches for the module. (Rotary dials and DIP switches may not be fully accessible after mounting device.) Label
modules and dress plates as described in Section 5.10. If using an annunciator keyswitch or phone jack, install as described in Section 5.11.
ACM-24AT/ACM-48A
Connect annunciators to their expanders as shown in Figure 5.7. Press stacker-connectors together firmly. Position the
set of annunciators over the threaded studs on the labeled dress plate and secure with two nuts and lock washers provided, as shown in
Figure 5.6.
ACM-16AT/ACM-32A
Position the annunciator over the threaded studs on the labelled dress plate and secure with two nuts and lock washers
provided, as shown in Figure 5.6. Connect ACM-16AT and ACM-32A to their expanders using ribbon cable as shown in Figure 5.8.
Plug the two annunciator terminal blocks into the annunciator to complete communica-
tion and power circuit connections as described in Section 5.5 and Section 5.9.
If using an annunciator backbox, place the annunciator/dress-plate assembly into the
backbox and secure with two screws.
If using a semi-flush-mount backbox, attach door. Align the door with the dress plate, and
slide the door down onto the pins on the dress plate. When positioned correctly, the door
will open and close freely (see diagram in Section 3.5, “Cabinet & Panel Hardware”).
Figure 5.5 Pull Wiring
into Enclosure
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NOTE:
Multiple ACM/AEM combinations may be installed in the same dress plate. This configuration can hide the correct location for the ELR,
double-check that it is installed or enabled on the last annunciator on the circuit.
Figure 5.6 Mounting to the Dress Plate
ACM-16AT, ACM-32A,
and Expanders
ACM-24AT, ACM-48A,
and Expanders
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Figure 5.7 Connecting ACM-24AT and AEM-48A to Expander Modules
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2
4
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ACM-24AT
AEM-24AT
AEM-24AT
AEM-24AT
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8
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ACM-48A
AEM-48A
A
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Figure 5.8 Connecting ACM-16AT and ACM-32A to Expander Modules
A
C
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3
2
A
-A
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ACM-16AT
AEM-16AT
AEM-16AT
AEM-16AT
ACM-32A
AEM-32A
