Specifications

292 Hardware Description and Reference for Avaya Communication Manager
MM712 DCP Media Module
Use the MM712 DCP Media Module to connect up to eight two-wire Digital Communications
Protocol (DCP) voice terminals.
Figure 67: Avaya MM712 DCP Media Module
Note:
Note: The MM712 is supported in both the G700 and G350 Media Gateways.
Hardware interface
Signal timing specifications for the MM712 support TDM bus timing in receive and transmit
modes. The G700 Media Gateway supplies only +5 VDC and –48 VDC to the MM712 Media
Module. Any other required voltages must be derived on the module.
Loop range secondary protection is provided on the MM712. The MM712 is also self-protecting
from an over-current condition on a tip and ring interface. The MM712 supports a loop length as
follows:
● 5500 feet (1676 meters) over 0.65 mm (.025 in.) wire (22 AWG)
● 3500 feet (1067 meters) over 0.5 mm (.02 in.) wire (24 AWG)
● 2200 (671 meters) over 0.4 mm (.016 in.) wire (26 AWG)
!
CAUTION:
CAUTION: The ports on the MM712 are intended for in-building use only. Phone lines
connected to those ports are not to be routed out-of-building. Failure to comply
with this restriction could cause harm to personnel or equipment.
mmdc712 KLC 022702
ALM
TST
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