G350 and Media Module LEDs
Media Module LEDs
274
Maintenance of the Avaya G350 Media Gateway
June 2004
Synchronization
The YELLOW ACT LED on the front of the MM710 Media Module can tell you the status of that
module regarding synchronization.
•
If the YELLOW ACT LED is solidly on or off, it has
NOT
been defined as a synchronization
source. If it is on, one or more channels is active. If it is an ISDN facility, the D-channel will count
as an active channel and will cause the YELLOW ACT LED to be on.
•
When the MM710 is driving a clock sync source line to the G350 main clock, the YELLOW ACT
LED does not indicate port activity, but instead indicates that the MM710 is the sync source by
flashing with a regular 3-second period:
— It is on for 2.8 seconds and flashes off for 200 milliseconds if it has been specified as a
sync source and is receiving a signal that meets minimum requirements for the interface.
— If it has been specified as a sync source and is not receiving a signal, or is receiving a
signal that does not meet minimum requirements for the interface, then the YELLOW
ACT LED will be off for 2.8 seconds and flash on for 200 milliseconds.
T1/E1 initialization
The T1/E1 Media Module LEDs behave in the following manner during initialization. The Angel
provides a visual indication of the Media Module’s status through the three faceplate LEDs:
•
During initialization the YELLOW ACT LED is held off, while the RED and GREEN LEDs are
on during the entire initialization sequence.
•
Upon power up or reset, if only the RED ALM LED comes on, the Angel processor is dead or the
board is being held permanently in reset.
•
Upon completion of the diagnostics and initialization, the GREEN TST LED turns off.
•
If the initialization tests fail, the RED ALM LED remains on.
•
If the tests all pass, then all LEDs are extinguished until Communication Manager starts using the
Media Module.
Operational control
After successful initialization, the T1/E1 Media Module’s LEDs are controlled as follows:
•
The Angel lights the YELLOW ACT LED when there is at least one non-idle trunk. If
Communication Manager sends a message to drive the clock sync signals, the YELLOW ACT
LED indicates this instead of the port busy/idle status.
•
The Media Server may independently light and extinguish the three LEDs through downlink LED
Control messages, subject to the constraint that it may not turn off a YELLOW ACT LED turned
on by the Angel as a result of port activity.
•
If the Media Module resets for any reason and is not released from reset, the RED ALM LED
lights and the YELLOW ACT and GREEN TST LEDs are held off.
Содержание Media Gateway G350
Страница 1: ...Maintenance of the Avaya G350 Media Gateway 555 245 105 Issue 3 June 2004 ...
Страница 16: ...About this book Sending us comments 16 Maintenance of the Avaya G350 Media Gateway June 2004 ...
Страница 48: ...G350 component maintenance IP telephones 48 Maintenance of the Avaya G350 Media Gateway June 2004 ...
Страница 284: ...Monitoring Extended keepalive 284 Maintenance of the Avaya G350 Media Gateway June 2004 ...
Страница 306: ...G350 traps G350 traps and resolutions 306 Maintenance of the Avaya G350 Media Gateway June 2004 ...
Страница 326: ...Media Server alarms S8300 alarms UPS 326 Maintenance of the Avaya G350 Media Gateway June 2004 ...