4 Gemini C-Series GEMC-NAC Extender Installation Instructions
JUMPERS
When used with a Gemini C-Series control panel, the
jumpers on the GEMC-NACXX circuit board are used as
follows:
NAC OPTIONS: Only jumper 4 "Offset" is used if
needed. When more than total combined 4A output is
required for synchronized outputs, this jumper must be
shunted. This offsets NAC's 3 and 4 from NAC's 1 and 2
to allow instantaneous current for the synchronized de-
vices. However, note that when shunted, the strobes and
horns must not be seen or heard from within the same
area. In addition, it should be noted that if a SYNC input
from the Gemini C-Series control panel is wired, NAC's 1
and 2 will follow that SYNC 1 (terminals 1 & 2 on the PC
board), and NAC's 3 and 4 will be offset.
NAC ADDR: Allows the GEMC-NACXX to be controlled
by the Gemini C-Series control panel. The type "Fire
NAC Extender" board must be selected in Quickloader
(External Output Assignment screen), and the corre-
sponding address of the board selected in Quickloader
must be configured into these jumpers (see chart). Only
the first 40 outputs can be supervised, thus only the maxi-
mum number of GEMC-NACXX's can be used on a Gem-
ini C-Series control panel is five (5).
EZM ADDR: Use to configure the integral 4-Zone EZM to
send the status of a device (AC ON/OFF, BATTERY
GOOD/TBL, GROUND FAULT and TAMPER) to the C-
Series control panel. See page 8 for more information.
INSTALLATION
The GEMC-NACXX must be installed in accordance with
NFPA 72 and with article 760 of The National Electrical
Code as well as all applicable local codes.
When used with a Gemini C-Series control panel, install
the GEMC-NACXX as follows:
1. Select a suitable indoor dry location for the GEMC-
NACXX enclosure and 120VAC junction box, ensuring
that adequate space is available for mounting the en-
closure on a wall with no interference from wires, pipes,
or other obstructions. Mount the enclosure using fas-
teners suitable for the mounting surface. The mounting
surface must be capable of supporting the weight of the
enclosure, the enclosure door, all batteries and all other
items that may be added to the enclosure.
2. Install a 2-gang metal electrical box near the GEMC-
NACXX enclosure (ensure the gang box includes a
ground stud inside the box). A continuously-powered
120VAC source with a maximum 15A dedicated branch
circuit with grounding conductor must be wired by a li-
censed electrician in accordance with all national and
local electrical codes. The 120VAC wires must run into
this gang metal electrical box; the three 120VAC wires
are hot (black), neutral (white) and earth ground (green
or bare copper). Be sure the electrician securely con-
nects the earth ground wire to the ground stud located
inside the gang box. (This branch circuit ground must
always be first on and last off the ground stud). In addi-
tion, ensure the electrician leaves at least 6 inches of
additional white and black wiring inside the Integral
Gang Box to allow these connections to be made eas-
ily. Ensure the 120VAC branch circuit breaker is turned
off before proceeding.
3. With the white and black wires in the gang box not yet
connected, install the model GEMC-PS24V7A power
supply board inside the GEMC-NACXX enclosure.
4. Connect the GEMC-120VACH harness from the wires
"NAC ADDR" JUMPER BLOCK (J1)
ADDRESS
NUMBER OUTPUTS "NAC ADDR" JUMPER BLOCK (J1)
J1-1 J1-2 J1-3
0 FACP Operation* • • •
1 1-8 ON • •
2 9-16 • ON •
3 17-24 ON ON •
4 25-32 • • ON
5 33-40 ON • ON
*These jumper settings should not be set when used with a Gemini C-Series control panel.
LED STATUS INDICATION TABLE (for inputs, outputs & trouble memory status)
LED NAME OFF ON FLASH TYPE*
NAC 1 Normal Alarm Condition Trouble Condition (Pulse)
NAC 2 Normal Alarm Condition Trouble Condition (Pulse)
NAC 3 Normal Alarm Condition Trouble Condition (Pulse)
NAC 4 Normal Alarm Condition Trouble Condition (Pulse)
INPUT 1 Normal Alarm Condition ---
INPUT 2 Normal Alarm Condition ---
EZM STATUS No Power Power, but not receiving panel polls (Pulse is "normal")**
GND FAULT Normal Earth Ground Fault ---
PWR No Power Power present ---
*May indicate trouble condition. When trouble (open, short or ground) occurs on a specific output, the corresponding red output LED, (NAC 1 - NAC 4) will blink. Loop trouble will
report within 200 seconds.
**Flashes every time the GEMC-NACXX responds to a poll; typically once every 5 seconds as a 4-Zone NAC EXT (EZM), and once every 1 minute as a Fire NAC Extender.
AC ON AC Loss (running on battery) AC present (with or without battery power) ---
BATT TRB Normal Low Battery, no battery or charging circuit trouble ---
POLL RESP Not responding to panel polls --- LED flickers when responding to remote bus poll
RLY 5 ACTIVE Relay OFF Relay ON ---
RLY 6 ACTIVE Relay OFF Relay ON ---
RLY 7 ACTIVE Relay OFF Relay ON ---
