AT&T System 85 manual Features, Administration

DEFINITY High Speed Link

Features

The basic features of the DEFINITY High Speed Link are:

DCP operation up to 5,000 feet from the switch

Super-twist LCD and three push-buttons for displaying status, setting options, controlling tests, storing telephone numbers, originating and manually answering calls

Two LEDs for power, incoming calls, data mode, test mode and fault indications

V.35 internally timed, synchronous interface for 56 kbps half duplex operation, 56 kbps full duplex operation, and 64 kbps full duplex operation

RS-366 ACU interface for originating data calls

RS-232 AT command interface with autobaud for originating and disconnecting calls

Test features for system fault isolation

Non-volatile memory for storing an option profile and four telephone numbers

Reset options for easy loading of default options

Data inversion option for compatibility with older 64 kbps DCP data modules

Automatic or manual answer option

DTR lead ignore option for operation with terminals that normally interface with private line DCE equipment

DSR lead ON option for operation with terminals that normally interface with private line DCE equipment

Optional DTR lead activated dial feature for stored number dialing

Permanent connection option for operation in private line applications

Memory cartridge interface for firmware upgrades

Applications

Administration

The High Speed Link is administered and/or aliased as a Modular Processor Data Module (MPDM). Routing, trunking and other administration considerations mirror those of the MPDM. The uses of the High Speed Link are compatible with those of an MPDM.

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