Alcatel-Lucent 1643 AMS Applications And Planning Manual page 119

Operations, Administration, Maintenance and Provisioning
This information is available from:
• Egress (Egress refers to the SDH to PDH transmission direction)
• Ingress (Ingress refers to the PDH to SDH transmission direction).
E1 non-intrusive monitoring
For transparent E1 interfaces, it is possible to do near-end performance monitoring on
each 2 Mbit/s signal in both directions (PDH to SDH and SDH to PDH) at the 2
Mbit/s system interface. Near-end information is obtained from CRC-4 violations and
defects.
Self-Diagnostics and recovery
The 1643 AM / 1643 AMS support the following diagnostic and recovery features:
• The equipment continuously runs self-diagnostic tests to monitor the health of the
transmission system
• Anomalies are reported via system indicators (FAIL LED) or Alarms on the
Element Management System and/or WaveStar
• The equipment auto-recovers after a power failure
• The equipment will auto-recover from a database failure by requesting the backup
database be downloaded from the Lucent OMS.
System indicator information
The 1643 AM / 1643 AMS support two LEDs which provide the following
maintenance information:
• A green LED to indicate power
• A red LED to indicate unit fault or signal failure.
Miscellaneous Discrete Inputs/Outputs
The 1643 AM / 1643 AMS provide four miscellaneous discrete inputs (MDIs) which
can be used to read external devices assigned by the customer. Examples are
monitoring temperature, humidity, open doors, etc.
The equipment provides four miscellaneous discrete outputs (MDOs) which can be
used to drive external devices assigned by the customer. Examples are signaling
devices, temperature conditioning, etc.
When not assigned by the customer, the 1643 AM / 1643 AMS behave such that MDO
1 has been assigned to indicate a power failure (normally open contacts will close),
MDO 1, MDO 2, MDO 3, MDO 4 are respectively assigned to power failure, Prompt,
Deferred, Information alarms.
...................................................................................................................................................................................................................................
365-312-801R7.2
Issue 3, May 2007
Alcatel-Lucent - Proprietary
See notice on first page
®
CIT
Operations Overview
5-5