64 UDACT Instruction Manual — P/N 50050:M 12/18/2009
AFP-100 (UL 8th) Wiring
A.2.2 Remote
The UDACT can also be mounted remotely using an ABS-8RB or UBS-1 enclosure placed within
6,000 feet (1,828.8 meters) of the control panel.
Refer to "Remote Installation" on page 22 for installation instructions.
A.3 Wiring
A.3.1 Connections
With internal installation the EIA-485 circuit and 24VDC are provided directly from the J16
connector.
For external connections refer to Figure A.2 on page 65.
Connect the communication line between the EIA-485 terminal block TB5 on the AFP-100 and
TB-1 terminals 3 and 4 on the UDACT, being certain to observe polarity.
If last device or no other devices are connected to the external EIA-485, install a 120 ohm EOL
resistor (PN 71244) across UDACT TB1 terminals 3 and 4.
Connect the
Ground Wire (PN 71073, provided) from the UDACT EARTH terminal on TB3 to a solid
building earth ground.
Connect 24VDC filtered, non-resettable power from terminal block TB4 on the AFP-100 to TB1
terminals 1 and 2 on the UDACT.
A.3.2 Notes
1. Ferrite cores, PN 29090, are recommended for all applications.
2. Recommended wire is 12 AWG (3.25mm
2
) to 18 AWG (0.75mm
2
), twisted pair, shielded
cable. Connect only one end of shield: a) shield may be connected to cabinet (earth ground) at
fire alarm panel, or b) shield may be connected to TB1 Terminal 5 (Shield) at UDACT as
shown in Figure A.2.
3. Conduit is recommended for external wire runs. Consult local building codes.
4. Refer to "Specifications" on page 13 for power requirements.
!
CAUTION: Remove all power from the control panel by disconnecting AC and batteries before
making any connections to prevent personal and/or circuit damage.
NOTE: A 120 ohm EOL resistor is not required on the UDACT EIA-485 terminals when it is
installed inside the AFP-100 cabinet.
NOTE: The shield end that is not connected should be insulated to prevent accidental
grounding. Do not connect both ends of shield under any circumstance since a ground fault may
result.
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