IBM Options External V.34Data/Fax Modem 2834
Our IBM Options External V.34Data/Fax Modem model no. MT2834BLK has a serial number of 42-P2055 and was manufactured by MultiTech for IBM and was introduced in 1996. It is complete with power supply, cables and manuals all in the original IBM Options box.
The MultiModem BL Series modem connections can be made on Public Switched Telephone
The modem also features Callback Security to protect networks from unauthorized use, and to
The MT2834BL modem meets the proposed Enhanced V.34 ITU standard for data signalling rates
as high as 33.6/31.2K bps in full duplex mode. Enhanced V.34 is an extension of V.32/V.32bis/V34
standards, and supports and is compatible with those features, including EIA extended Automode;
adaptive line probing; automatic symbol rate and carrier frequency during start-up; and retrain and
rate renegotiation (in 2400 bps increments).
The major application for the MT2834BL is in 4-wire leased line networks with the addition of dial
backup capability. With this capability, the dial-up feature saves any down time if the leased line fails.
Since the MT2834BL operates according to ITU V.34 modulation, it can operate full-duplex over two
wires, so that the dial backup mode performs the same throughput as the leased line.
Date : 1996
The MT2834BL features ITU V.42 error correction and V.42bis data compression, providing 100%
error-free data transmission. V.42 error correction incorporates MNP( Classes 3 and 4, and LAP-M.
You may select V.42bis data compression for 4-1 throughput, or MNP Class 5 for 2-1 throughput.)
Manufacturer : IBM, MultiTech
This exhibit has a reference ID of CH6752. Please quote this reference ID in any communication with the Centre for Computing History.