User Manual

AirLink Pro T1/E1 Rack Mount Installer’s Guide
Configuration
Rev. B - 1/97
3-18
Interface Type (E1 Only)
Set the interface operand on the E1, where the operand is balanced or
unbalanced.
Setting Alarm Control Parameters
The alarm control parameters of the AirLink Pro T1/E1 Rack Mount include:
❚ Alarm reporting
❚ Alarm level
❚ 1-hour Errored Seconds (ES) threshold
❚ 1-hour Unavailable Seconds (UAS) threshold
❚ 24-hour ES threshold
❚ 24-hour UAS threshold
❚ Receive (Rx) power
❚ Transmit (Tx) power
The following sections describe how to set values for these parameters.
Alarm Reporting
This parameter determines whether alarms are displayed as they happen or
are held until you query for them. When an alarm event occurs, an alarm
message is inserted in the event queue and the Major or Minor indicator is
illuminated and the alarm relay contacts are de-energized: the NO contact is
closed; the NC contact is opened.
The Major Alarm LED is red and indicates that there is one or more of the
following events has occurred: transmit power below threshold, synthesizer
loss of lock, transmitter failure, DTE input loss, radio sync loss, loss of primary
burst sync (single sync bus), loss of primary and backup burst sync (dual sync bus).
The minor Alarm LED is yellow and indicates that one or more of the following
events has occurred: rcv input level below threshold, unit has been placed in a
test mode, ES threshold exceeded, UAS threshold exceeded, loss of primary or
backup burst sync (dual sync mode).