Verilink PRISM 41TDM (34-00275.4) Product Manual - Manual (Page 41)

Maintenance 33
It shows, in the Current column, the consecutive FDL seconds the unit received.
The Threshold column displays the value (in seconds) that must be met or
exceeded to generate an alarm. Setting the Threshold value to 0 disables the alarm.
Refer to Alarm Configuration on page 42 to set the alarm parameters.
Reset Alarm
Registers
Pressing the Enter key with the Reset option highlighted clears all Current alarm
parameters.
Maintenance Use the Maintenance screen (Figure 4-3) to perform loop tests and/or BERT
functions on the DDS circuit. BERT is performed by using on-board test facilities.
Additional test equipment is not required. Some of these tests can also be activated
by the front panel buttons as described in Diagnostics on page 25.
Figure 4-3 Element Maintenance Screen
Element This field allows testing and reviewing the loop patterns for the near-end or far-end
unit.
Clear Tests Pressing Enter on this field clears all local tests and any line loops that have been
initiated.
Clear Alarms Pressing Enter on this field clears all near-end alarms.
Loop The type of loop is chosen by toggling the spacebar and is executed by pressing
Enter. The choices include Local, V.54, Far V.54, DTE A, and DTE B. Far V.54
generates a V.54 loop at the far end.
Unloop Pressing Enter takes down the specified loop from the currently selected port. The
type of loop is chosen by toggling the spacebar and is executed by pressing Enter.
The choices include Local, V.54, Far V.54, DTE A, and DTE B.