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SXL-EX
Operation, Installation, and Maintenance Manual
Standard Components
A standard four zone SXL-EX has one
modulethe main board. An expander board
is added to provide four additional zones,
when needed.
MAIN BOARD
The Main board of the SXL-EX or SXL-EX-INT
contains the intelligence for the system and
performs all of the input/output processing as
listed below:
Two supervised Notification Appliance
Circuits
provide 24 VDC at 1.5
amps.
Each circuit operates Class B (Style Y)
and can be independently programmed
to operate a number of different ways
(Non-Coded, March Time, Temporal, or
Simple Zone Code).
Two Form C relays
rated at 30 VDC at 1
amp resistive, 30 VAC at 500mA resis-
tive. These relays are for Alarm and
Trouble operation.
A dual mode battery charger
that
provides float and constant current
Figure 2
SXL-EX Front Panel
modes of charging sealed lead acid
batteries (15 Amp-Hour maximum).
Nonvolatile
storage
of
system con-
figuration
so that configuration remains
intact during loss of system power.
Four supervised power limiting
Initiating Device Circuits.
Each circuit
operates Class B (Style B) and can be
independently programmed to operate as
an Automatic Alarm input, a Verified
Alarm input, a Supervisory input, or a
Generic input. Each initiating device
circuit can use an unlimited number of
manual shorting-type devices.
CPU Fail LED.
DISPLAY
The SXL-EX display, shown in Figure 2,
provides the user with the necessary inter-
face to operate the fire detection system in
Normal, Test, and Program modes.
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