MM717 DCP Media Module

Last Updated : Oct 18, 2017 |

The Avaya MM717 Media Module provides 24 Digital Communications Protocol (DCP) ports connected through an RJ21X Amphenol connector. The MM717 supports simultaneous operation of all 24 ports. Each port can be connected to a 2-wire DCP telephone. The MM717 does not support 4-wire DCP telephones.

The MM717 is supported in the G450 and G430 Branch Gateways.

Signal timing specifications for the MM717 support TDM Bus Timing in receive and transmit modes. The G450 and G430 Branch Gateways supply only +5 VDC and –48 VDC to the MM717 Media Module.

MM717 provides loop range secondary protection. The MM717 is also self-protecting from an over current condition on a tip and ring interface. The MM717 supports the following loop length:

  • 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)

The MM717 Media Module is connected to the wall field or breakout box with a B25A unshielded 25-pair cable.

Danger:

The ports on the MM717 are intended for in-building use only. Telephone 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.