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Installation
Connect Alarms
6
Connect the alarm relay wires from the CO alarm center to the posts of
the Visible Alarm (CRIT. VIS—NO and COM), Audible Alarm (CRIT.
AUD—NO and COM) and Alarm (FE, MIN, MAJ, CRIT, and COM).
Follow the CO site instructions for connecting alarm relays. The visible
and audible alarm relays do not have an NC (normally closed) position.
7
Connect a 16 AWG chassis ground cable to the ground (GND) post.
C
ONNECTING
The fuse rating for the ThinMux chassis is 2A.
Figure 6. Battery Supply Connector (rear view)
1
Connect 16 AWG cables to the -48V A, B, and RTN terminals.
2
Connect the other end of the cables to CO battery supply and RTN
terminals.
3
Apply power and check the voltage.
4
Reinstall the common access panel and screw in the hold-down lugs.
10
P
OWER
January 3, 2002
LTPH-UM-1088-02, Issue 2
RTN B
-48 B
RTN A
-48 A
FGND
ThinMux Chassis
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