UDACT-2 — Instruction Manual
P/N 54089:B3 10/29/2019
41
NCA-2 (UL 864 10th), NCA (UL 8th)
Panel-Specific Information
Notes
1.
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-2 as shown in Figure A.8.
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 NCA:
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.
To Phone Lines
(supervised)
Solid Earth Ground
Connection
NCA
ud
act2
-n
ca-
sep
rt
cab
sa.w
m
f
Wires in
conduit
Figure A.8 UDACT-2 and NCA in Separate Cabinets