
Introduction
Dual-Leased Backup
MSD
The Modem Sharing Device (MSD) is only available in 392xPlus multiport modems. It allows from 2 to 4 physical ports to share a communication channel. When the MUX mode option is set to TDM/MSD on a tributary, and at least one port has the MSD mode setting enabled, then MSD is enabled. For more information, refer to the Multiport Mode section of Chapter 4 for configuration options or the
When MSD mode is enabled:
•The MSD Control configuration option is added at the end of the Mux
•The EIA Port
Digital Bridge
The Digital (DTE) Bridge application is only available in 392xPlus multiport modems. It provides the ability for dial backup of a multipoint configuration by bridging the signal on the digital side of the
When the Digital Bridge is enabled, a new menu is present with the following conditions:
•TDM capability is disabled when DTE Bridge mode is enabled, therefore the rate of Port 1 is forced to run at the line rate.
•Configuration options are provided for Port 1 only; Port 2 cannot be configured.
•Ports 3 and 4 are not available.
•
•DTE Status, Health and Status, and LED control are available for both Ports 1 and 2.
V.34 Modulation
The V.34 modulation capability is available in all 392xPlus modems. In Singleport mode the V.34 modulation is compatible with other vendors' modems that support the CCITT V.34 modulation. The two top rates of 31,200 and 33,600 bps (Paradyne), however, only function with other
392xPlus modems. In Multiport mode, the V.34 modulation will not operate at line rates of 31,200, 26,400, and 21,600 bps, and is only compatible with other 392xPlus modems.
November 1996 |