- 6 - FireSwitch108
6. Determine which NAC input will trigger the desired NAC output(s).
7. Select output options (for Programming refer to pgs. 9-11).
Note: The 2-wire horn/strobe sync mode will only synchronize horns, horn/strobes, strobes with
synchronization capability. For Class B outputs connect EOL (AL-EOL10) to the last device in each NAC
Loop. For applications in Canada use EOL10K-C end of line resistors (to be ordered separately). Form the
leads to fit the terminals. Bend radius can not exceed 0.125”. Do not bend closer than 0.25” to the body of
the resistor.
8. Connect desired 24VDC devices to regulated Aux. power output terminals marked [+ AUX – ] (Fig. 2, pg. 5).
Output is Power-Limited. 0.25” spacing from Non Power-Limited wiring must be provided.
Use separate knockout.
9. Connect Digital Communicator or Local Annunciator to Common Trouble Output terminals marked
[NC, NO, C]. Connection to triggering devices must be made within 20 ft. of distance and using conduit
for wiring (Fig. 2, pg. 5).
10. Connect appropriate signaling notification devices to terminals marked [AC FAIL & BAT FAIL]
supervisory relay outputs (Fig. 2, pg. 5).
11. Program FireSwitch utilizing on-board programming switch or via ethernet port (for Programming refer
to pgs. 9-11). When using ethernet port, cable has to terminate within the same building.
12. WARNING: emergency control or non fire equipment cannot be connected on same circuitry as
fire alarm equipment.
Amount of Notification Appliances that can be Synchronized:
Altronix Model Max. Per Circuit Max. Per FireSwitch108
FireSwitch108 32 128
Terminal Identification Table:
Logic Board
Terminal Legend Function/Description
+ 24V IN – 24VDC input from power supply.
+ AUX –
This separate 1A max. auxiliary regulated output circuit is typically used to power
approved devices. See attached list of devices (Appendix B, pg. 23).
OUT1 - OUT8
(Supervised)
Notification appliances are connected to these regulated outputs. Each power limited output
will supply up to 2.5A. Outputs are controlled by designated Input 1 [IN1] or Input 2 [IN2]
(Output Configuration Chart, pg. 9). Maximum line impedance 1 Ohm. NAC outputs that
are programmed as AUX are Special Application.
IN1 +, IN1 –
IN2 +, IN2 –
(Supervised)
These terminals connect to the 24VDC FACP notification appliance circuit outputs. Class A
or Class B Input trigger voltage is 8-33VDC @ 6.5mA min (12VDC or 24VDC @ 6.5mA).
Terminal polarity is shown in alarm condition. During an alarm condition these inputs will
cause the selected outputs chosen to drive notification appliances. The designated outputs are
programmable [OUT1 through OUT8] (Output Configuration Chart, pg. 9). A trouble condi-
tion on an output loop will cause the corresponding input to trip the FACP by opening the
FACP loop. An alarm condition will always override trouble to drive notification appliances.
RET1 +, RET1 –
RET2 +, RET2 –
(Supervised)
For Class A connections these terminal pairs return to FACP. For Class B connections use
FACP EOL resistor to terminate at these terminals. Optionally, additional signaling circuit
power supplies may be connected to these terminals. If this option is chosen, the EOL resis-
tor must be terminated at the last device. Up to twelve (12) units can be interconnected.
EARTH Connects to the grounding lug of the enclosure (factory installed).
C, NO, NC
(Common
trouble output)
These are dry contact trouble outputs that report any general loop/system trouble conditions.
In addition, Factory set to report AC and Battery trouble. Feature can be optionally turned off.
See Programming section, pg. 9-11. Typically used to trigger a digital communicator or other
reporting devices (form “C” contact 1A / 28VDC, 0.35 Power Factor). Connection to trigger-
ing devices must be made within 20 ft. of distance and using conduit for wiring (Fig. 2, pg. 5).
+ SYNC –
Designed to be connected to [+ INP1 –] or [+ INP2 –] of Altronix FireSwitch models only.
Maximum of four (4) units can be interconnected, the distance between the units should
not exceed 20 ft., wiring to be in conduit, 20 AWG wire minimum. FireSwitch108 NAC
power extenders must be located in the same room.
GF1
GF2
Dry normally open contact. It will close if ground fault is detected. Use to report ground
fault condition to a host FACP. Can be wired between [+] or [–] coming from FACP and
earth ground.
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