Gemini C-Series GEMC-NAC Extender Installation Instructions 25
"NAC OPTION" JUMPER OPTIONS
OPTION # JUMPER SHUNT
JUMPER NAME
DESCRIPTION
0
1
OFF
strobe/bell
NAC 1 and NAC 2 follow INPUT 1, NAC 3 and NAC 4 follow INPUT 2
2
OFF
Wheelock
3
OFF
System Sensor
4
OFF
Offset
ON = Offset NAC 1/2 and NAC 3/4 by 1/2 second
5
OFF/ON
AUX PWR
ON = NAC 4 is always on (24V auxiliary power)
1
1
ON
strobe/bell
Use INPUT 1 as bell and INPUT 2 as strobe NAC 1 and 2 temporal on bell (INPUT 1),
NAC 3 and 4 follow strobe (INPUT 2)
2
OFF
Wheelock
3
OFF
System Sensor
4
OFF
Offset
ON = Offset NAC 1/2 and NAC 3/4 by 1/2 second
5
OFF/ON
AUX PWR
ON = NAC 4 is always on (24V auxiliary power)
2
1
ON
strobe/bell
Use INPUT 1 as bell and INPUT 2 as Strobe (Wheelock format)*
2
ON
Wheelock
3
OFF
System Sensor
4
OFF
Offset
ON = Offset NAC 1/2 and NAC 3/4 by 1/2 second
5
OFF/ON
AUX PWR
ON = NAC 4 is always on (24V auxiliary power)
3
1
ON
strobe/bell
Use INPUT 1 as bell and INPUT 2 as Strobe (System Sensor format)*
2
OFF
Wheelock
3
ON
System Sensor
4
OFF
Offset
ON = Offset NAC 1/2 and NAC 3/4 by 1/2 second
5
OFF/ON
AUX PWR
ON = NAC 4 is always on (24V auxiliary power)
"NAC OPTION" JUMPER OPTIONS
The
"NAC OPTION"
jumpers described in the table below are only used when the "
NAC ADDR
" jumper is set to 0 ("zero" no
shunt connectors across any of the jumpers). When the "
NAC ADDR
" jumper is set to 0 ("zero"), the AUX relays are dedi-
cated to the following tasks:
•
AUX Relay 1 = NAC loop trouble (open or short on NAC 1-4 loop)
•
AUX Relay 2 = Normally energized AC ON
•
AUX Relay = Normally energized Battery Good
*INPUT 1 can be steady or temporal.
CONFIGURING the GEMC-24VR
To use the GEMC-24VR for constant auxiliary regulated 24V power, place shunt on
NAC Options
jumper 5. Wire NAC 4
to input terminals 1 and 2, observing polarity.