ADC H2TU-C-231 Manual Do Utilizador
Installation
LTPH-UM-1109-01, Issue 1
8
January 9, 2002
H2TU-C-231 List 2
V
ERIFICATION
Once the H2TU-C-231 is installed, verify that it is operating properly. To do this, monitor the following:
•
Status LED (see
)
•
Status messages reported by the front-panel display (see
Verification without an H2TU-R Remote Unit
If there is no H2TU-R remote unit installed:
1
Verify that the H2TU-C powers up. The front-panel display illuminates and reports status messages. (See
for a list of messages.)
2
Verify that the H2TU-C attempts to communicate with a remote unit (status LED flashes red). Even if a
remote unit is not present, the following events should occur:
remote unit is not present, the following events should occur:
a
The front-panel display reports various four-character status messages.
b
The H2TU-C again attempts communication until a remote unit is detected.
Verification with an H2TU-R Remote Unit
If an H2TU-R remote unit has been installed:
1
Verify that the H2TU-C powers up. (The front-panel display illuminates and reports various status messages.)
2
Verify that the H2TU-C attempts to communicate with the remote unit (status LED flashes red). One of the
following occurs:
following occurs:
a
If the remote unit is successfully identified and the HDSL2 loop synchronizes, the H2TU-C status LED
lights a steady green. The H2TU-C reports normal margin messages on the front-panel display.
lights a steady green. The H2TU-C reports normal margin messages on the front-panel display.
b
If the remote unit is not identified, the H2TU-C reports four-character status messages. The H2TU-C
attempts communication again and reports four-character status messages. The H2TU-C repeats this
cycle until a remote unit is detected.
attempts communication again and reports four-character status messages. The H2TU-C repeats this
cycle until a remote unit is detected.
3
Verify that a valid DS1 signal has been applied to the H2TU-C and the H2TU-R.
a
If no DS1 signal is being applied to either the H2TU-C or the H2TU-R inputs, then the appropriate DS1
alarms (LLOS or RLOS) display on the front panel and the status LED flashes red.
alarms (LLOS or RLOS) display on the front panel and the status LED flashes red.
b
If a valid DS1 signal is being supplied to the H2TU-C and H2TU-R, then DS1 alarm indications should
be absent and the status LED should be a steady green.
be absent and the status LED should be a steady green.