3Com 980/000048/001 manual Principal Features, Support for dial-up transmission protocols

1-2 CHAPTER 1: TRIPLE MODEM MODULE

Principal Features

■Support for dial-up transmission protocols:

■V.34 – 2-wire full duplex modems operating at data signalling rates of 33600, 31200, 28800, 26400, 24000, 21600, 19200, 16800, 14400, 12000, 9600, 7200, 4800 and 2400 bps.

■Non-proprietary V.32 terbo – 2-wire full duplex modems operating at data signalling rates of 19200, 16800, 14400, 12000, 9600, 7200 and 4800 bps.

■V.32bis – 2-wire full duplex modems operating at data signalling rates of 14400, 12000, 9600, 7200 and 4800 bps.

■V.32 – 2-wire full duplex modems operating at data signalling rates of 9600 and 4800 bps.

■V.23 – 75/1200 bps operation.

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V.22bis – 2400 bps full duplex operation.

V.22 and Bell 212A – 1200 bps full duplex 2-wire modem.

V.21 and Bell 103J – 300 bps modems.

■Support for leased line transmission protocols:

■V.34 – 2-wire or 4-wire full duplex modems operating at data signalling rates of 33600, 31200, 28800, 26400, 24000, 21600, 19200, 16800, 14400, 12000, 9600, 7200, 4800 and 2400 bps.

■Non-proprietary V.32 terbo – 2-wire or 4-wire full duplex modems operating at data signalling rates of 19200, 16800, 14400, 12000, 9600, 7200 and 4800 bps.

■V.32bis – 2-wire or 4-wire full duplex modems operating at data signalling rates of 14400, 12000, 9600, 7200 and 4800 bps.

■V.32 – 2-wire or 4-wire full duplex modems operating at data signalling rates of 9600 and 4800 bps.

■2-wire PSTN backup of the Private line.

■CCITT V.42bis or MNP Class 5 data compression.

■Virtual error-free data passage using CCITT V.42 LAPM or MNP Level 4 error correction.