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OVERVIEW
A Burg Module is required for UL Combination Burglary
and Fire and Burglary-only installations to provide a
separate, isolated bus for burglary keypad(s) that are
required for annunciation and other burglary/access
control peripheral devices. For UL Commercial installa-
tions, the unit is to be housed in an attack resistant enclo-
sure such as the GEMC-HSKIT1425 or GEMC-
HSKIT1416 employed with the GEMC-TAMPERKIT.
See WI1653 for GEMC Series installation instructions.
Two Burg Module Options
There are two types of Burg Modules. Both provide the
same isolated Burglary and access control features,
however, the voltage and current ratings for each are
different, requiring different power calculations depend-
ing on system back-up battery configurations. The two
types of Burg Modules are as follows:
• GEMC-BM Burg Module without power supply; utilizes
the Fire system batteries (see WI1701)
• GEMC-BM/PS Burg Module with 24V to 12V con-
verter and back-up 12V, 8AH max battery charger
with monitor circuit
SPECIFICATIONS
Electrical Ratings
Input Power: 12V Regulated, 25mA standby plus total
combined standby and alarm current. Must reduce
GEMC-XXXMB total 12V standby current by GEMC-MB
total standby current plus 25mA.
Note: GEMC-BM total standby and alarm current plus
GEMC-XXXMB total 12V standby and 12V alarm cur-
rent must not exceed 2.5A.
Output Power:
Burg Bell Power: 12VDC Regulated, 2A maximum.
AUX Power: 12VDC Regulated, 750mA maximum.
Burg Bus Power ("Remote Bus Power"): 12V Regu-
lated, 750mA maximum.
PGM1: Active low, 10.6 - 12VDC @ 150mA.
PGM2: Active low, 10.6 - 12VDC @ 150mA (For UL
Commercial installations)
Aux Relay: Wet 12V Regulated @ 750mA maximum
(subtract from AUX Power); may be set to a dry form "c"
relay contact upon removing the jumper "R"; output
rated 30VDC, 3A (Resistive Load)
Total Combined Standby Current (Auxiliary power +
Burg Bus power + Aux Relay power +25mA standby
current): 750mA.
Total Combined Standby and Alarm Current
(Auxiliary power + Burg Bus power + Aux Relay power
+ Bell power): 2.5A.
INSTALLATION
The GEMC-BM is pre-assembled at the factory with two
support bars as shown in the image below:
1. Place the Burglary Module PCB on top of the Sup-
port Bars and secure using the 6-32 screws (item #6).
R
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Amityville, New York 11701
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© NAPCO 2010 WI1701 06/10
NAPCO GEMINI C-SERIES
GEMC-BM
BURGLARY MODULE
INSTALLATION INSTRUCTIONS
PRE-ASSEMBLED GEMC-BM BURG MODULE
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EXPLODED VIEW OF GEMC-BM BURG MODULE.
SEE TABLE BELOW FOR NUMBER DESCRIPTIONS
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