Mircom RAM-2944LCD, Installation And Operation Manual

Page: 12 / 28

12
Operation
3.0 Operation
3.1 LEDs
There are 192 LED zones available on the Annunciator, each zone consisting of Alarm (red),
Supervisory (amber) and Trouble (yellow) LEDs. The LEDs will flash if a new condition is
received. If the buzzer is sounding, press Acknowledge to silence the buzzer. Press
Acknowledge (again) to latch the LEDs. Once the condition is restored, the LED can be
turned off by pressing Reset. If global commands are enabled, these operator keys will be
broadcast to the network, causing all units to respond to the operator keys. An asterisk will
appear at the end of the LCD display line showing the current time if any of the LEDs can be
reset. If the Alarm List is being displayed, the current time will not be displayed.
If the RAM-2944LCD has a memory or configuration error, the buzzer will sound every 2
seconds. This also occurs while loading a database.
If LEDs are programmed, the table below shows the meaning for each LED when flashing.
The Power On LED flashes when the annunciator first starts operating and stays steady after
the Acknowledge key is pressed.
If a common LED is programmed, it will show the sum of all the Zone LEDs that are on. The
common LED will also indicate troubles that are local to the Annunciator only. The Hot LEDs
have no effect on the common LED.
Lamp Test flashes the LEDs in sequence. Pressing Lamp Test repeatedly will cycle through:
alarm LEDs, supervisory LEDs, trouble LEDs, and Lamp Test off. The test will automatically
end if any new condition is received, or after 5 minutes. The lamp test cannot be performed if
AC power is off.
3.2 Buzzer
The buzzer gives audible indication of any conditions in the panel. It may sound in any of four
modes. Pressing Acknowledge will silence the buzzer. (Acknowledge will need to be pressed
again to latch flashing LEDs.)
The four buzzer modes are:
Steady: This indicates any new fire alarm conditions. This mode can be disabled in the
database.
Table 2 LED Descriptions
LED Meaning LED Meaning
Zone 1 alram Acknowledge available Zone 3 alarm 2nd Stage Inhibit available
Zone 1 supervisory Reset available (green) Zone 3 supervisory Manual Restart available
Zone 1 trouble Reset available Zone 3 trouble future use
Zone 2 alarm Signal Silence active Zone 4 alarm future use
Zone 2 supervisory Signal Silence available Zone 4 supervisory future use
Zone 2 trouble 2nd Stage Inhibit active Zone 4 trouble Power On