Fireswitch applications: 1. general information, Class a and class b hookups, Testing and maintenance (cont’d.) – Altronix FireSwitch108 Installation Instructions User Manual
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FireSwitch Applications:
1. General Information:
Altronix FireSwitch units are very versatile devices. They can be used with or without specific synchronization
modules provided by some manufacturers. Multiple units can be synchronized by using either the built-in sync mode or
a external synchronization module. Please note, that only notification appliances with synchronization capabilities can be
synchronized. Contact signal manufacturer for more detailed information. Units can operate with either one (1) or two
(2) outputs from the FACP.
2. Class A and Class B Hookups:
Units can be used with the outputs configured for:
• Four (4) Class A (Fig. 6 ).
• Up to eight (8) Class B.
• Combination of Class A and Class B outputs (Fig. 7).
Two (2) Class A
Hookups
From
FACP NAC1
Return
to FACP
From
FACP NAC2
Return
to FACP
INP1
RET1
INP2
RET2
OUT1 OUT2
OUT3
OUT4
NEGA
TIV
E
POSITIV
E
One (1) Class A
two (2) Class B Hookups
NEGA
TIV
E
POSITIV
E
INP1
RET1
INP2
RET2
OUT1 OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
OUT8
10K
EOL
10K
EOL
Fig. 6
Fig. 7
NAC Loop
Starts On
Terminates On
1
OUT 1
OUT 2
2
OUT 3
OUT 4
3
OUT 5
OUT 6
4
OUT 7
OUT 8
Please make sure corresponding outputs are
programmed appropriately.
Combination of two (2) Class B and one (1) Class A circuit.
Testing and Maintenance (cont’d.):
Test operation of unit as follows:
Ground fault test: Directly short one leg of the circuit to chassis ground. The ground fault and trouble fault
should be indicated.
NAC open circuit test: Remove the EOL resistor from the last device on the circuit. Open trouble should be indicated.
NAC short circuit test: Place a short across each NAC output individually. NAC short should be indicated.
Disconnect Battery: BAT trouble should be indicated.
Reset Trouble Memory.