AFP-200 Instruction PN 15511:F2 10/11/99 79
Figure B-2 NFPA 72-1993 Central Station Fire Alarm System UDACT
(Protected Premises Unit)
AFP-200
Ferrite
Cores
PN 29090
UDACT in ABS-8R
(shown with cover removed)
To Phone
Lines
(Supervised)
Solid
Earth Ground
Connection
Install 120 ohm end-
of-line resistor (PN:
71244) on TB1
terminals 3 and 4 if
last or only device
on EIA-485 line
Connect the Universal Digital Alarm Communicator/Transmitter (UDACT) according to the directions given in
the UDACT Manual. Check the following items before powering the UDACT or control panel:
• Is the UDACT connected to the control panel correctly? Powered from the non-resettable 24 VDC,
[TB1, terminal 3 (+) and terminal 4 (–)] with correct polarity. Connected to the EIA-485 port, [TB5,
terminal 1 (+) and terminal 2 (–)] with correct polarity.
• Is the UDACT configured correctly? ACS/TERMINAL switch on the UDACT must be in the ACS (left)
position. The Start Monitor Address must be set to 1 and the Stop Monitor Address must be set to 2.
• Is the control panel configured and programmed correctly? ACS/TERMINAL switch (SW2) on the
control panel must be in the ACS (right) position. The control panel must be programmed for 'ANNUN-
UDACT'. The UDACT current must be included in the control panel Supply Calculations.
• Is the system software compatible? A UDACT must have software PN 73624 or higher and a control
panel must have software PN 73609 or higher.
• Is the control panel configured for proper supervision? If the system does not have an annunciator,
configure the UDACT for Receive/Transmit. If the system has an annunciator, configure the UDACT for
Receive Only and the annunciator for Receive/Transmit. Supervise the UDACT via the COMM FAIL output
(refer to Monitoring for UDACT Trouble in the UDACT Manual).
Note: If the annunciator does not require remote control capabilities (Reset, Acknowledge, Silence, etc.),
'COMM FAIL' monitoring is not required provided the UDACT is configured for Receive/Transmit and the
annunciator is configured for Receive Only. Wiring to the annunciator will be supervised if the power and the
EIA-485 circuits are wired sequentially, with the UDACT connected to the end of the circuits, allowing the
UDACT to function as an end-of-line device (the control panel connects to the annunciator and the annunciator
connects to the UDACT).
Supervised and power-limited
EIA-485 and power wiring
AFP-200 Cabinet
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