Siemens MXL-IQ - Event Handling: Alarms, Supervisories, Security, Troubles

3-6
Operation
This order ensures that fire alarms always
take priority over all other conditions. In turn,
supervisories always take priority over
security conditions and security conditions
always take priority over troubles. All of the
above modes take priority over Normal mode,
which is the absence of any alarms,
supervisories, security conditions, or
troubles.
Alarm
The alphanumeric display shows an alarm
message when a fire alarm is received.
See Alarm.
Supervisory
The alphanumeric display shows a supervi-
sory message when the system receives a
supervisory and no higher priority event is
present. See Supervisories, page 3-8.
Security
The alphanumeric display shows a security
message when a security condition is
received and no higher priority event is
present. See Security Conditions, page 3-9.
Trouble
The alphanumeric display shows a trouble
message when a trouble is present and no
higher priority event is present. See
Troubles, page 3-10.
Normal Mode
Normal mode is the absence of any alarms,
supervisories, security conditions or
troubles.
In normal mode the display shows the
following message:
11:59:59 DEC 31, 20XX SYSTEM
[custom system message] NORMAL
The POWER LED glows steadily in normal
mode when the system has AC power. The
ALARM, AUDIBLE SILENCE, SUPERVI-
SORY, TROUBLE, and SECURITY LEDs
are off and the internal audible is off.
If your System has the printer option, the
System prints a message in the following
format every day at midnight, even when
there are alarms or other conditions:
System Status at 00:00:00 Jul 02, 20XX
0 ALARM 0 ALARM ACK
0 SUPERV 0 SUPERV ACK
0 SECURITY 0 SECURITY ACK
0 TROUBLE 0 TROUBLE ACK
Alarm
RESPONDING TO AN ALARM
1. Follow the response plan approved by
the local authority having jurisdiction.
2. When the MXL-IQ is installed, the
ACKnowledge key and Audible Alarm
Silence key (AUD SIL) on the MKB-4
are behind a locked door. The display,
LEDs, and display control keys are
visible and accessible. To acknowledge
an alarm or trouble, or to silence an
audible alarm, first unlock and open the
door.
How The System Annunciates Fire
Alarms
When a fire is detected, the System causes
the ALARM LED on the MKB-4 to flash, the
System’s internal audible to sound, the
AUD SIL LED to flash, and the alphanu-
meric display on the MKB-4 to alternate in a
sequence among the three messages
shown below. This example assumes that
two fire alarms were received (Refer to the
explanations below).
Message 1:
1-001 [custom message]
002 [device type] IN ALR
Message 2:
1-001 [custom message]
002 [time/date] IN ALR
Message 3:
ALARMS=002 SUPERVISORIES=000
SECURITIES=000 TROUBLES=000
In addition, the System responds to alarms
with programmed output functions such as
other audible signals.