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IMI 66-047
Voltage Check
blocks under the following conditions
l
Bridging clips installed
Measure the voltage across one voice line and one data line and then
across the other voice line and the other data line for each even and
odd station.
The measured voltage must be as follows:
UNIT UNDER
TEST
TYPICAL EVEN
STATION
Repeat for
each even sta.
TYPICAL ODD
STATION
Repeat for
each odd sta.
Variant readings can indicate a possible wiring, station, or KSU
problem.
General Check
Check the red light emitting diode (LED) system status indicator.
1 .
Be sure that it is on steady.
disconnect and reconnect the AC power plug.
still not on steady, refer to the Failure Analysis Flow Chart
found in Chapter 4.
2 .
Refer to the station User's Guide for operating information.
Perform a general operational test of the system by exercising the
system features from station port 10 or 11.
parameters are per the system default conditions as detailed in
Chapter 3 until Class Of Service (COS) programming is performed.
Once the basic system is verified as operational, perform the COS
3 .
programming.
Change page 3188
CONNECTION
I
, Voice 1
Data
3
Voice
2
4
Data
11
Voice
10
Data
12
2-18
POLARITY
I
i-i
- 3 3 +/- 5
- 3 3 +/- 5
If it is off or flashing,
If the indicator is
Operational
Installation
MEASURED
VOLTAGE
I
VDC
VDC
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