Figure 5-4. Direct V.35 Interface - AT&T MERLIN LEGEND Release 2.0 Equipment And Operations Manual

Data Communications Support

Figure 5-4. Direct V.35 Interface

This connection requires an optional High Speed Enhancement Board to be
included in the 7500B Data Module.
The High Speed Synchronous Enhancement Board provides a V.35 interface at
synchronous data rates of 48, 56, or 64 Kbps on port 2. The connection is via
an V.35 external adapter cable that converts the 25-pin male connector on Port
2 to the industry-standard 34-pin V.35 interface. The cable is packaged with
the board.
The board comes with an adhesive V.35 label that must be affixed to the back
panel of the 7500B Data Module so that port 2 cannot be mistaken for a second
EIA-232D interface.
When the High Speed board is used, no connection is allowed to port 1.
In this configuration, no dialing connection is made between the Group IV (G4)
Fax machine and the 7500B Data Module, and all dialing must be made from
the front panel of the data modem.
A D8W cord also connects from the Line port on the 7500B Data Module to the
008 MLX or GS/LS-MLX module port on the communications system. The PRI
interface is made from the 100 DS1 Module.
PRI Applications
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