MR-2100/2200 Operator’s Manual
2
1.4 Zone LEDs
The optional zone LEDs are across the bottom of the main display. They are visible through the
front door. Each zone has an alarm (red), supervisory (yellow), and trouble (yellow) LED. The
alarm and supervisory LEDs will turn on as required by the inputs. The trouble LED will light for
either an input trouble condition, a ground fault or if there is a bypass present. Use the LCD and
keypad (see Section 1.8 below) to determine the exact condition. A new condition is shown by a
flashing LED. After the Acknowledge button (see Section 1.6 below) has been pressed, the LED
will be lit steadily. Note: If the buzzer is sounding on the panel, Acknowledge will silence the
buzzer, but not latch the LEDs. Press Acknowledge again to latch the LEDs.
Each set of zone LEDs is programmed via the database to represent whatever logical zoning is
required.
1.5 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.
• Fast: This indicates any critical failures that must be attended to. These failures can
include, but are not limited to memory overflow, network reboot required, database mis-
match, etc. The pattern is 50ms on/off.
• Medium: This indicates any new supervisory conditions. The pattern is 200ms on/off.
• Slow: This indicates any new trouble conditions. The pattern is 500ms on/off.
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