User guide

T1-A and T1-B Tests
216 AXS-200/805/855
Facility Results
Facility Results
Press , select DSn/PDH, T1-A or T1-B, Results, and the Facility tab.
³ CLEAR: Select CLEAR to reset the
counters, clear the history of
alarms and restart the test time.
³ Test Time displays the time
elapsed since the beginning of
the test. The time is reset when
using the CLEAR button.
³ INSERT: Select all errors to be
injected and press the INSERT
button to start the injection. Error insertion is not available in Monitor
and Bridged test mode.
Available errors are Bit Error, BPV, and Frame Loss.
³ Alarms - CNT, or SEC: indicates the alarm types and allows the
selection of the count (CNT) or the total number of seconds in which
one or more alarm occurred (SEC).
LOS (Loss Of Signal): Indicates loss of network signal or connection on
a networking device. If its encountered, it is an indication that the
cable connected to the network device is bad, has no connection on
the other end, network is improperly configured, or the network device
itself is bad.
OOF (Out Of Frame): Indicates that four consecutive frame bit errors
are detected.
AIS (Alarm Indication Signal.): Occurs when an AIS signal (all 1s) is
detected at the input, and still exists after the LOF alarm is declared
active (caused by the unframed nature of the all 1s signal). The AIS
alarm is cleared when the LOF alarm is cleared.