AFP-400 Installation
PN 50253:A2 03/12/96
5-1
The following shows typical wiring diagram for a NFPA 72-1993 Central Station
Fire Alarm System (Protected Premises Unit) or a Remote Station Fire Alarm
System (Protected Premises Unit) using the UDACT and AFP-400.
Central or Remote
Station Fire Alarm
System
EIA-485 (ACS Mode)
TB4-1 (+)
TB4-2 ()
MPS-400
CPU-400
TB2-1 (+)
TB2-2 ()
24 VDC
Nonresettable
power
Ferrite cores
PN 29090
AFP-400 Cabinet
Typical Wiring Diagram for a Central Station Fire Alarm System
Installation
Connect the Universal Digital Alarm Communicator/Transmitter (UDACT) accord-
ing to the directions given in the UDACT Manual.
The following lists a typical configuration that assumes no other devices are
operating in the Receive/Transmit mode on addresses 1 and 2. Refer to the
UDACT manual for further information. Configure the system as follows:
Step Action
1
Configure the
UDACT
a) Set the ACS terminal switch to the ACS position.
b) Set the UDACT Start Monitor address to 1.
c) Set the UDACT Stop Monitor address to 2.
d) Set the UDACT for Receive/Transmit operation.
2
Configure the
AFP-400 program
a) Program ACS annunciation address 1 for
selection group 1.
b) Program ACS annunciation address 2 for
selection group 2.
NFPA 72 Central
Station and NFPA 72
Remote Station require
60 hours of standby
power.
Configuring the UDACT and AFP-400
Wiring Diagram
Install 120 watt EOL
resistor (PN: 71244) on
TB1 terminals 3 and 4 if
last or only device on
EIA-485 line
5. Applications
Supervised and
Power-limited
EIA-485 and
power wiring
To supervised
phone lines
Solid earth
ground
UDACT in ABS-8R
(shown with cover removed)