Avaya G450 Installing And Upgrading page 302

Equipment List
Table 35: Equipment List: Media Modules (continued)
Media Modules
MM717 24 port DCP
Media Module
The MM717 DCP Medial Module supports 24 DCP stations. The MM717 uses a
25-pair amphenol connector on the media module's faceplate. The 24 DCP ports
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. The MM717 is RoHS compliant.
MM720 BRI Media
Module
The MM720 BRI Media Module contains eight ports that can be administered
either as BRI trunk connections or BRI endpoint (telephone and data module)
connections. Information is communicated in two ways:
Over two 64 Kbps channels called B1 and B2 that can be circuit-switched
●
simultaneously
Over a 16 Kbps channel called the D channel that is used for signaling. The
●
D channel occupies one time slot for all eight D channels
The circuit switched connections have a u-law or A-law option for voice
operation. The circuit switched connections operate as 64 Kbps clear channels
when in the data mode.
The MM720 BRI Media Module does not support combining both B channels
together to form a 128 Kbps channel.
Note:
Note:
For BRI trunking, the MM720 BRI Media Module supports up to eight BRI
interfaces, or up to 16 trunk ports, to the central office at the ISDN S/T
reference point.
For BRI endpoints, each of the eight ports on the MM720 BRI Media Module
can support one integrated voice/data endpoint or up to two BRI stations and/or
data modules. Supported endpoints must conform to AT&T BRI, World Class
BRI, or National ISDN NI1/NI2 BRI standards. The MM720 BRI Media Module
provides -40 volt phantom power to the BRI endpoints.
The MM720 is RoHS compliant.
302 Installation and Upgrades for the Avaya G450 Media Gateway
Comcode (for Services Ordering Only): 700394711
Comcode (for Services Ordering Only): 700394752
The MM720 BRI Media Module cannot be administered to
support both BRI trunks and BRI endpoints at the same time.
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