Alpha Technologies USM2 - Manual (Page 30)

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©2000 ™
704-587-B0-003 Rev.D
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7. REFERENCE
7.2 Testing and Troubleshooting, Quick Reference
USM2 Start up and Test Procedure
The XM2 power supply should be fully tested before attempting any USM2 operations. Refer to the XM2 technical manual
for details. Once the power supply has been verified as “GOOD” the USM2 can then be tested as follows:
1. Verify the USM2 installation by checking:
• Configurations settings of switches and jumpers on the USM2.
• USM is properly installed onto Communication Module, and that the Communication Module is
correctly installed into the XM2 power supply.
• Tamper switch is properly installed and connected.
• Data cable from the USM2 to the transponder is correctly installed.
2. Unplug transponder’s data cable from the USM2.
3. Using a true RMS multimeter, verify the USM2’s analog data (set by configuration) on the J3 connector
by checking (ground on J3-1):
• Auxiliary DC output on J3-2
• AC Output Voltage Level on J3-4
• Battery Level output on J3-5
• Output Current #1 level on J3-8
• Output Current #2 level on J3-13
4. Using a true RMS multimeter, verify the USM2’s Digital data (set by configuration) on the J3 connector
by checking (ground on J3-1):
• Standby Status Alarm J3-3, active any time inverter in ON.
• Equipment Fail Alarm J3-6, active if test failure or low battery condition.
• Tamper Alarm J3-7, active when the enclosure’s door is open.
• Output Alarm J3-10, active when the XM2’s AC output has failed.
5. Verify remote USM2 control on the J2 connector by shorting to ground (J3-1):
• Test/Reset J3-11, shorted XM2 inverter Test ON, open inverter Test OFF.
NOTE: Passing test steps 1-5 is a very good indication that the USM2 is operating correctly, if any of the
tests fail; retest, verify failure, replace USM2 as needed.
6. Plug transponder’s data cable back into the USM2. Repeat test steps 3-5; local results should remain
the same. If results do NOT remain the same, this is an indication of a possible transponder failure.
7. Review analog data at status monitoring center, reported data should be similar to measured data
(step 6).
8. Initiate an inverter test command from the status monitoring center, the power supply should go into
test as commanded. Monitor command signals from the transponder on the USM connector J2 using a
multimeter by checking:
• Test/Reset J3-11, active XM2 inverter ON, inactive inverter OFF.
NOTE: Test steps 6-8 are used to verify the transponder and the status monitoring system, if any of the
tests fail; retest, verify failure, troubleshoot status monitoring system (less USM2) as needed.