2: Relay Driver - Fire-Lite UDACT-F Instruction Manual

2.4.2 Relay Driver
The UDACT-F's open collector output on TB3, Terminal 2, is provided for Communicator Failure and UDACT-F
trouble. It can be used to drive UL listed relay MR-101/C or MR-201/C. The output is rated for 40 mA. The normal
condition for the output is Off (deenergized).
Communicator Failure occurs when the maximum number of attempts to reach both Central Stations has taken place
or when both phone lines are disconnected. UDACT-F trouble conditions include loss of telephone line voltage to the
primary and/or secondary phone lines, communication failure to the primary or secondary Central Stations or total
communication failure.
Wiring from the UDACT-F terminal block TB3 to the relay must be in the same room no more than 20 feet (6 m) in
length and enclosed in conduit. Wiring from the relay output contacts must also remain in the same room as the
UDACT-F.
When the UDACT-F is programmed as 'Receive Only' (typically when annunciators are also used and are set for
'Receive/Transmit'), the relay output is used to provide a UDACT-F trouble input to the host control panel. For
MS-9200 and MS-9600 applications, use a monitor module to supervise the relay closure (refer to Figure 2-11). Pro-
gram the adjective and noun fields for 'UDACT-F Trouble'. For Sensiscan 2000 applications, wire the relay output to
the annunciator trouble input circuit or use the relay to trigger zone trouble.
When the UDACT-F is programmed as 'Receive/Transmit', EIA-485 supervision and UDACT-F trouble status are
automatically handled by the host control panel.
Relay Driver Connections
FIGURE 2-10:
All wiring to relay must be in the
same room within 20 feet of the
UDACT-F and in conduit.
Relay Energized LED
Relay Energized LED
Note: The MR-101/C and MR-201/C include an enclosure.
Document #50049 Rev. E0 01/22/01
DPDT Contacts
10 amps
@115 VAC
Connections must be in the
same room as the UDACT-F.
DPDT Contacts
10 amps
@115 VAC
P/N 50049:E0
Output Circuits
25