13
SXL-EX Operation, Installation, and Maintenance Manual
Set Output Control Matrix
(Program
Level 5)
The SZE-4X Zone/Output Expander module
has four output relays and four open collector
outputs. The SRC-8 Relay module has eight
output relays. Initiating Device Circuits can be
mapped to these outputs. Any number of
zones can be mapped to any output. The first
zone in alarm will turn the output on. Also,
any zone can be mapped to any number of
outputs. When the zone alarms, all mapped
outputs will turn on.
The outputs on the SZE-4X and the SRC-8
are linked. The outputs are numbered 1
through 8. If a zone is mapped to an output,
for example output number 1, the first output
on the SZE-4X
and
SRC-8 will turn on if both
modules are in use.
Bypass Zones and Outputs
(Program
Levels 1 and 2)
The SXL-EX can bypass both Initiating
Device Circuits and relays or open collector
outputs on the SZE-4X Zone/Output Ex-
pander module and the SRC-8 Relay module.
When a circuit is bypassed, the system
reports a trouble condition and the
Bypass LED will be on.
When a zone is bypassed, the zone
trouble LED will also be on.
When an output is bypassed, and both
the SZE-4X and the SRC-8 are in use,
the respective output on both cards will
be bypassed.
Set System Timing
(Program Level 6)
The SXL-EX has the following four timing
functions:
1. Verification Retard/Reset Timer
2. NAC Inhibit Timer
3. NAC Cutoff Timer
4. Simplified Zone Code Rounds
The Alarm Verification Retard/Reset time
establishes the delay time required to provide
an alarm verification cycle as determined by
the system owner or the local authority.
(Complete instructions for the proper selec-
tion of this timer follow.)
The NAC Inhibit and Cutoff Timers provide
automatic control of evacuation signals.
The inhibit timer prevents any user from
silencing the notification appliances
before the selected time expires.
The cutoff timer automatically turns off all
notification appliances after the selected
time expires.
Each timer has eight separate selections.
When the cutoff timer is set at
No Cutoff
(0
minutes), there is no automatic cutoff and the
appliances are energized until silenced or
reset.
The last timing function sets the number of
rounds of code for those systems using
Simple Zone Coding. (Please see the above
discussion of NAC types for a full explanation
of Simple Zone Coding.) The minimum
number of rounds is 3 and the maximum
programmable number of rounds is 8.
Alarm Verification Retard/Reset Timer
Selection
(Program Level 6-1)
The selection of the Alarm Verification fea-
ture results in a delay of the system alarm
signal to the affected circuits. The total
allowable delay is 60 seconds. This delay,
the Alarm Verification time, is the sum of a
built-in 6 second system delay and the
programmed Retard/Reset time. The Retard/
Reset time can be set between 15 and 50
seconds, with 15 seconds being the pro-
grammed default. (See the definition of zone
types above for a further definition of the
Alarm Verification Time cycle.)
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