ACS Manual —
P/N 15842:
N3
5/4/2022
35
Appendix C: AFP-300/AFP-400 (UL 8th)
C.1 Capabilities
When installed with an AFP-300/AFP-400, ACS annunciators can be used to annunciate control panel status, addressable devices, panel
modules, and software zones. The fire alarm control panel uses ACS Annunciator addresses 1 through 19 (1 through 10 when employing a
UDACT). Up to 32 devices can be driven by the EIA-485 communications output, all addresses combined, with up to 64 points to an
address. Two-way communications can occur with only one annunciator per address; other devices on the same address must be configured
as “Receive Only”.
C.2 Connecting the EIA-485 Circuit
EIA-485 wiring is connected to TB4 of the AFP-300/AFP-400 as shown in the accompanying illustration.
See Section 4.3 for details and notes about EIA-485 requirements.
C.3 Providing Power to Annunciators
AFP-300/AFP-400 panels use Main Power Supply MPS-400. The annunciator’s power supply is connected to
either of the MPS-400’s two non-resettable power supplies: TB2 Terminals 1(+) and 2 (-) or TB2 Terminals 3 (+)
and 4(-), as shown in the accompanying illustration. No more than 1.25A can be drawn from these power-limited
terminals in standby or alarm.
See Section 4.6, “Annunciator Power Requirements & Electrical Ratings” for specifications.
The power run to the annunciator need not contain a Power Supervision Relay because loss of power is inherently
supervised through communication loss. This 24 VDC output is power-limited, filtered, and non-resettable.
NOTE:
The panel annunciation points are divided into nine groups of 64 points. Each group can be assigned to one or more of the 19
annunciator addresses supported by the AFP-300/AFP-400. See the AFP-300/AFP-400 Programming Manual for assignment details.
a
c
s
4
0
0
e
ia
.w
m
f
TB4 on AFP-300/AFP-400
a
c
s
4
0
0
p
w
r.
w
m
f
TB2 on the MPS-400
24 VDC
A
B
