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Wiring Installation
General Requirements
•
Power all alarms from life safety
branch of emergency power system as
required by applicable standards.
•
Protect all wiring from physical
damage by raceways or conduit as
required by applicable standards.
•
Wire master panels directly to
switches or sensors as required by
applicable standards.
•
Wiring runs should be made with color
coded wire. Record color, signal, and
source of signal for each wiring lead to
aid in connection of alarm finish
components.
•
Avoid installing alarm panels near
radio transmitters, electrical motors, or
switchgear.
Wire Type And Size
All low voltage MEGA2 wiring must meet
the following criteria:
•
Copper wire no smaller than 22 AWG.
•
Circuit length not to exceed 5000 feet.
•
Cable must be twisted pair shielded
type. Multi-pair cables within one
common shield are acceptable.
Wire Routing
Two 7/8" holes are provided for entrance
of AC mains power. One hole on lower
left side and one hole on top left of alarm
panel back box. NO OTHER HOLES
SHOULD BE PUNCHED OR USED. If
hole on top left is used, remove shield for
access. Reinstall shield after connection
is made.
Several additional 7/8" holes are provided
on right side of top panel for entrance of
low voltage field wiring. Refer to Figure
11.
Two choices of
conduit holes for
entrance of AC
mains power
For top entry, remove
shield for access. Reinstall
shield after connection is
made
Figure 11: Wire Routing
Holes for entrance of
low voltage field wiring
Part No. 6-847684-00 Rev. D01
11
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