Specifications

Indicators, Controls, and Operation
36
• The Circuit Status LED turns on steady amber when the corresponding circuit is in alarm. This LED will also
flash at the fast flash rate while an active circuit is being reconnected.
Trouble-Only Circuit Indicators
The operation of trouble-only circuit indicators applies to initiating circuits configured as trouble-only circuits. The
Circuit Trouble LED flashes at the trouble flash rate to indicate circuit trouble (open circuit or Class A (Style D)
trouble) or if the circuit is disconnected. The Circuit Status LED also flashes amber at the trouble flash rate to
indicate a short-circuit trouble.
Signal Circuit Indicators
The operation of signal circuit indicators applies to indicating circuits of any type. The Circuit Trouble LED flashes
amber at the trouble flash rate to indicate short-circuit or open circuit trouble, or a disconnected circuit.
Relay Circuit Indicators
Relay circuit trouble indicators flash amber at the trouble flash rate while the corresponding circuit is disconnected.
Circuit (Zone) Disconnect Switches
Circuit (zone) disconnect switches are provided for all initiating, indicating, and relay circuits on the fire alarm control
panel. For the first four indicating circuits on the main fire alarm module, the disconnect switches consist of either a
bank of DIP switches (or slide switches in "S" Version Chassis) DIP switches numbered one to eight correspond to
the circuits indicated in the indicator column from top to bottom
Changing a circuit disconnect switch to the ON position bypasses the associated circuit, turns on its trouble
indicator, and activates common trouble. While a circuit is disconnected, all changes in status (alarms and troubles)
on that circuit are ignored. The panel does not activate disconnected indicating circuits.
Disconnecting an active latching initiating circuit such as water-flow alarm, sprinkler alarm, general alarm, and
latching supervisory does not affect its status until the panel is reset. Disconnecting active non-latching initiating
circuits including non-latching supervisory and trouble-only causes them to behave as if conditions returned to
normal. Disconnecting an active indicating circuit immediately deactivates the circuit.
When an initiating circuit disconnect switch is returned to its normal state, the panel checks the state of the circuit. If
the circuit is active, the Status LED flashes for ten seconds at the fast flash rate without processing the input. If the
circuit is not re-disconnected by then, it will be processed as a new input.
Disconnect switches are also used during Configuration Mode (see page 40) and Walk Test Mode (see page 48) as
described in those sections.