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DEFINITYEnterpriseCommunicationsServerandSystem75andSystem85
Terminals and Adjuncts Reference
555-015-201
Issue 11
December 1999
Data Modules
21-70The Modular Processor Data Module (MPDM)
21
Features of the High Speed Synchronous MPDM
Optional Interface Cards
There are two optional interface cards can be used with this MPDM package:
■ V.3 5
— Normal DTR operation
— Endpoint controls (asserts) the DTR lead
■ V. 3 5 D T R
— DTR lead on the MPDM is always high
— Endpoint has no control over the DTR lead
— Call is typically under PBX control, for example, permanent switched
call (a DEFINITY G1 and G3) or dedicated switched call (a
DEFINITY G2)
Functional Elements
The preassembled High Speed Synchronous MPDM consists of the following
parts:
■ Stand-alone housing
■ Modular PDM
■ V.35 M1 * (ACCUNET D-Kit)
NOTE:
On the front panel the data module is renamed from “MPDM” to “MPDM
ACCUNET.”
Optional Settings
A new option switch, OFF/ANET, has been added, allowing the High Speed
Synchronous MPDM to be optioned in two different ways:
■ When the OFF/ANET switch is set to OFF, this MPDM can be optioned to
function as a standard MPDM
■ When the OFF/ANET switch is set to ANET, this MPDM can be optioned to
be compatible with ACCUNET Switched 56 kbps Digital Service. (Set
OFF/ANET to ANET for Dedicated Switch Call [DSC] arrangements.)
— No Mode 2 handshaking required to go into data mode
— Keyboard dialing is not supported
— Remote loopback test is not supported