Avaya 03-300430 User Manual

Note:

Consult local records for the location and designation of the equipment rack 
where the Media Gateway is mounted.

The MM720 Media Module provides 8 S/T ISDN 2B+D ports that interface to either the central 
office or another PBX. The MM720 contains eight, 4-wire ports that interface to the network at 
the ISDN S/T reference point over two 64 Kb/s channels (B1 and B2) and over a 16Kb/s 
signaling (D) channel. The B1 and B2 channels can be simultaneously circuit switched, or 
individually packet switched. Only one channel per trunk can be packet switched due to Packet 
Processing Element (PPE) limitations. The D-channel is circuit switched. The circuit-switched 
connections have a Mu-law or A-law option for voice and operate as 64Kb/s clear data 
channels. 

The three LEDs on the media module’s faceplate indicate board status. When illuminated, the 
red LED indicates a board failure or a major or minor on-board alarm, the green LED indicates 
that testing is in progress, and the amber LED indicates that the board is in use.

TBRI-PT

MAJ

test port GGGVSPP l r#

TBRI-PT

TBRI-PT

MIN

test port GGGVSPP l r#

TBRI-PT

TBRI-PT

WRN

test port GGGVSPP s r#

TBRI-PT

0

Any

Any

Any

test port location sh r 1

Level 1 Status Test 

(#1242)

MIN

OFF

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