363-206-204
Operational Tests
Issue 9 October 1998
10-13
Procedure With a Terminal
Use the following procedure to verify parallel telemetry wiring by activating alarm
points and have the maintenance center observe for their appearance or by
checking for activation with a volt meter.
NOTE
:
This test can be terminated at any time with the CANcel or DELete key.
1. If the maintenance center interface is established skip to step 3.
2. Setup to test alarm interface with a voltmeter.
a. Connect the Output - Common (See Table 9-1) from the alarm cable
to ground.
b. Connect the negative lead of the voltmeter to -48 volts.
1. If you cannot access -48 volts powering the shelf any other
way disconnect J2 from P2.
2. Connect the negative lead of the voltmeter to green wire in J2
3. Either:
a. Alert the maintenance center to observe for a specific alarm bit
or
b. Refer to Table 9-1 and connect the voltmeter positive lead to the
alarm wire for a specific alarm bit and connect the negative lead as
described above, 0 volts will be measured.
4. Issue the command test-tlm-par (TEST-TELEMETRY PARALLEL).
5. At the prompt mode, enter the mode identifier for the desired alarm bit as
determined from Table 9-1.
NOTE
:
An individual telemetry point or miscellaneous (environmental) discrete can
be tested by entering cr, mj, mn, pmn, aco, clf, inc, ne,
fe1, fe2, fe3, fe4, fe5, fe6, sid, or output at the prompt
mode as listed in Table 9-1.
6. At the prompt repeat, enter a number 1 through 10.
NOTE
:
Issuing the test telemetry command will activate the alarm bit for 20 sec-
onds. The number selected for this prompt will determine the number of
times that this bit will be activated for 20 seconds and then stay off for 20
seconds.
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