25
SXL-EX Operation, Installation, and Maintenance Manual
Maintenance
PERIODIC INSPECTION AND TESTING
To insure proper and reliable operation,
inspect and test the system to the latest
edition of NFPA 72
Signaling Systems.
SERVICING
If troubleshooting and servicing guidance is
needed, contact your local Siemens Building
Technologies, Inc. Authorized Service Repre-
sentative.
CHECKOUT PROCEDURE
Prior to installing devices on bases and
applying power to the SXL-EX system, follow
the
Field Wiring Checkout Procedure
(Refer to Table 5, page 27).
On completion of installation, the system
should be thoroughly tested. Check supervi-
sion functions and the functional operation of
each external circuit, as well as the basic
system control panel functions.
4
TABLE 3
SYSTEM FAULT TROUBLESHOOTING
Fault Code Display
Trouble
Possible Cause
1
AC Power Fail
Check AC Power Source
AC Circuit Wiring Open
Open F1 AC Fuse
Brownout
2
Notification Appliance
Circuit 1 Fault
Open Wire
Missing End of Line Resistor
Shorted Wire
NAC Device Wired Backward
NAC Device Not Polarized
3
Notification Appliance
Circuit 2 Fault
Open Wire
Missing End of Line Resistor
Shorted Wire
NAC Device Wired Backward
NAC Device Not Polarized
4
Ground Fault
Less than 1 megohm from Earth Ground to Circuit
5
Municipal Tie Fault
Municipal Tie is Tripped
Municipal Tie is Bad
6
Battery Fault
Battery is Missing
Open F3 Battery Fuse
7
System Configuration Fault
Reconfigure the SXL-EX
8
Auxiliary Port Fault
Short on DATA Line
SRC-8 Module Not Present/Not Responding
LED-3/4 Module Not Present/Not Responding
SLT-1 Module Not Present/Not Responding
9
Output Bypassed
Any Control Output Bypassed
0
Hardware Failure
The SXL Main board processor has failed
Replace the board.
BLANK
Bells/Strobes Turn on Briefly then
Shut off During Test
NAC is Overloaded
Check Current Draw of all Devices on the Circuit
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