Paradyne 392xPLUS 392xPlus Singleport Features, 392xPlus Multiport Features, Applications

COMSPHERE 392xPlus Modems

•Network management system (NMS) support through the COMSPHERE 6800 or 6700 Series NMS using Advanced Diagnostic protocol (ADp).

•Automatic and manual backup with standby capabilities for 4-wire/2-wire leased-line applications. (The backup facility may be either a 2-wire dial line or a 2-wire leased line.)

392xPlus Singleport Features

Features specific to 392xPlus singleport modems are:

•Four-wire/two-wire leased-line modulations.

•Dial-line modulations.

Refer to Table 1-2 in the Technical Specifications section of this chapter for leased- and dial-line modulations information.

392xPlus Multiport Features

Features specific to 392xPlus multiport modems are:

•Four-port time division multiplexer (TDM) operation.

•Modem Sharing Device (MSD).

•Digital Bridging.

•Mux enabled, four-wire/two-wire leased-line modulations: V.34 family (33,600, 28,800, 24,000, 19,200, 16,800, 14,400, 12,000, 9600, 7200, 4800, and 2400 bps), V.32 terbo (19,200 and 16,800 bps), V.32bis (14,400, 12,000, 9600, 7200, and 4800 bps), V.32 (9600 and 4800 bps), and Trellis Multipoint (TMp) (19,200, 14,400, 9600, 7200, 4800, and 2400 bps).

•Mux enabled, dial-line modulations: V.34 family (33,600, 28,800, 24,000, 19,200, 16,800, 14,400, 12,000, 9600, 7200, 4800, and 2400 bps), V.32 terbo (19,200 and 16,800 bps), V.32bis (14,400, 12,000, 9600, 7200, and 4800 bps), V.32 (9600 and 4800 bps).

Applications

Multipoint

Multipoint is available in all 392xPlus modems. It utilizes leased-line circuits for time sharing the same front-end processor (FEP) port with multiple remote locations. The FEP (via the control modem) regulates traffic on the line by continuously polling the tributary DTE(s) in a predefined sequence. Only one tributary can communicate with the control modem at a given time. Modems configured for Trellis Multipoint (TMp) cannot be used in a point-to-point, constant carrier application. (Refer to the Multiport Mode Ð Leased Line or the Singleport Mode Ð Leased Line section in Chapter 4 for configuration options.)

1-8 November 1996 3920-A2-GN31-30