Honeywell NOTIFIER UDACT-2 Instruction Manual page 38

Panel-Specific Information
Connect the Ground Wire (PN 71073, provided) from the UDACT-2
earth ground.
Connect 24VDC filtered, non-resettable power from the CPU2-640 TB10 to TB1 24V+ and 24V- terminals on the UDACT-2.
To the NFS-640
Connect the communication line between the EIA-485 terminal block TB13 on the CPU2-640 and TB2 terminals EIA-485+ and EIA-
485- on the UDACT-2, being certain to observe polarity.
If the UDACT-2 is the only or last device connected to the EIA-485, set SW1 DIP 1:4 to ON to enable the UDACT-2's 120 ohm termi-
nating resistor.
Connect the Ground Wire (PN 71073, provided) from the UDACT-2
earth ground.
Connect 24VDC filtered, non-resettable power from the CPU2-640 TB7 to TB1 +24V and -24V terminals on the UDACT-2.
Notes
1. Recommended wire is 12 AWG (3.25mm
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-2 as shown in Figure A.4.
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.
2. Conduit is required for external wire runs. Consult local building codes.
3. Refer to "Specifications" on page 8 for power requirements.
Below is a remote installation of a UDACT-2 with an NFS2-640/NFS-320/NFS-320SYS:
38
2
) to 18 AWG (0.75mm
Figure A.4 UDACT-2 and NFS2-640/NFS-320/NFS-320SYS in Separate Cabinets
NFS2-640 (UL 864 10th), NFS-320/SYS (UL 864 10th), NFS-640 (UL 8th)
terminal on TB2 to the CHS-4 Chassis or to a solid building
EARTH
terminal on TB2 to the CHS-4 Chassis or to a solid building
EARTH
2
), twisted pair, shielded cable. Connect only one end of shield: a)
To Phone Lines
(supervised)
Remote Cabinet
Solid Earth Ground
Connection
UDACT-2 — Instruction Manual P/N 54089:B3 10/29/2019
Wires in conduit
NFS2-640/NFS-320/NFS-
320SYS
in Separate Cabinet