MR-2900 Operator’s Manual
4
System
Reset
System Reset resets part or all of the system.
• The green LED flashes when the system, or part of the system, can be reset.
• The yellow LED flashes when there are conventional smoke detector circuits in
alarm.
Press System Reset to reset the smoke detectors. The yellow LED also flashes if
the ground fault relay is activated. Press System Reset to deactivate the ground
fault relay to check for restores and additional ground faults. If ground faults remain,
the relay will be re-activated after 5 to 30 seconds.
Pressing System Reset with no LEDs flashing will operate any relays that are not
used by the system and deactivate any Aux Power outputs. The time they remain
open is determined by the Duration time programmed. If the Duration is 0, the relay
or Aux Power output will not operate.
Notes:
1. The system cannot
be reset until all circuits and devices are reset.
2. If both LEDs are flashing, the green LED function has precedence.
3. The green LED will remain flashing after System Reset is pressed until
addressable devices have had their LEDs reset.
Second
Stage Inhibit
Prevents the automatic operation of second stage operation. This applies only to
panels with ALERT or STAGED type bell systems. For ALERT systems, pressing
the Second Stage Inhibit will prevent the panel from going into second stage. For
STAGED systems, it will prevent the system from going to the next stage. Second
Stage Inhibit has no effect on an EVAC type bell system. The green LED will flash
when Second Stage Inhibit is available, and the yellow LED will flash when it has
been activated.
Fire Drill Activates all the bell circuits, both regular and coded, in Alert mode. Press a second
time to have all bell circuits sound in Evacuation mode. Press a third time to end the
Fire Drill. The yellow LED will flash while the Fire Drill is happening. The Fire Drill
cannot be performed if the bells are already activated, or if AC power is off. The
Fire Drill is automatically ended if an alarm condition occurs.
Lamp Test Flashes the panel LEDs in sequence starting with the zone alarm LEDs. Press
Lamp Test repeatedly to cycle through the zone supervisory LEDs zone trouble
LEDs, system LEDs, and Lamp Test Off.
Releaser
Disconnect
Causes the releaser circuits to ignore any new alarms. The buzzer beeps every 2
seconds while the releasers are disabled. This beeping is suppressed while a
privileged level is entered in the panel. Press again to restore normal operation.
The red LED will flash while active. If no releasers can be disconnected, Releaser
Disconnect will do nothing. This function can be set to Privilege Level 0 or 1.
Relay
Disconnect
Causes the function relays and control modules to ignore any new alarms. Press
again to restore normal operation. The yellow LED will flash while active. If no
relays nor control modules can be disconnected, Relay Disconnect will do nothing.
This function can be set to Privilege Level 0 or 1.
Key Action
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