G350 and Media Module LEDs
Media Module LEDs
Maintenance of the Avaya G350 Media Gateway
273
June 2004
MM710 T1/E1 Media Module LEDs
The T1/E1 Media Module has four LEDs on its faceplate (see
Figure 20, T1/E1 Media Module LEDs,
on page 273 shows their color and functions. The first three are the
standard LEDs, which are under software control.
Figure 20: T1/E1 Media Module LEDs
The supported portion of the LED Control message allows software to change the status of the three
standard LEDs on the T1/E1 Media Module faceplate. Power-up and alarm states are the only conditions
where hardware sets the state of the LEDs independent of ANGEL firmware control. The exceptions to
letting software turn off the LEDs are:
— The board is in reset (RED ALM LED remains on)
— A call is up (YELLOW ACT LED remains on while the E1 line is in-frame and at least
one voice/data call is up)
— During board reset initialization testing (GREEN TST LED remains on until initialization
testing is complete)
NOTE:
For ISDN operation, the Yellow LED will be turned on if ANY port has an active TDM
connection (including the D-channel).
Table 149: T1/E1 LEDs
Name
Color
Location
Description
ALM
RED
Top
Upon power-up, this LED is turned on. Upon passing diagnostics
this LED is turned off. During normal circuit pack operation this
LED is not turned on except for certain alarm states.
TST
GREEN
Second
During power-up self-testing and maintenance testing requested by
the SPE, this LED is turned on.
ACT
YELLOW
Third
This LED indicates that the clock is synchronized with a source
(usually the Central Office). The LED is blinking 2700 ms ON and
300 ms OFF. This is the most common condition.
The opposite blinking of the YELLOW LED is 300 ms ON and
2700 ms OFF. This is an error condition, and indicates that the
MM710 T1/E1 Media Module is not synchronized with a clock.
An infrequent occurrence is a steady YELLOW LED. This
indicates in-use activity, only when clock synchronization is set to
local.
SIG
GREEN
Bottom
This LED indicates whether the link to the Central Office (CO) is
up (equivalent to the TN464F circuit pack Status 3 GREEN LED).
See
Summary of Contents for Media Gateway G350
Page 1: ...Maintenance of the Avaya G350 Media Gateway 555 245 105 Issue 3 June 2004 ...
Page 16: ...About this book Sending us comments 16 Maintenance of the Avaya G350 Media Gateway June 2004 ...
Page 284: ...Monitoring Extended keepalive 284 Maintenance of the Avaya G350 Media Gateway June 2004 ...