The IBM Options External V.34 Data/Fax Modem 2834 (model MT2834BLK) is a high-speed modem for both data and fax communication. It supports data transmission speeds up to 33.6 Kbps and fax speeds up to 14.4 Kbps. This modem was manufactured by MultiTech for IBM, and was introduced in 1996. It was designed for commercial and server applications.

The modem supports connections made on Public Switched Telephone Networks (PSTNs) and/or point-to-point 2-wire and 4-wire leased telephone type circuits.

Key Features:

• Supports the V.34 standard for data and fax communication, allowing for high-speed data transfer.
• Enables both data transmission (up to 33.6 Kbps) and fax transmission (up to 14.4 Kbps).
• Switched network backup protects against connection failure by allowing the modem to switch to a different network if the primary one is unavailable.
• Command mode configuration, including storage for up to ten command line/telephone numbers of up to 60 characters each, in the modem’s nonvolatile memory.
• Callback security protects networks from unauthorised use, and helps manage phone line costs.
• Flash memory makes it easy to update the modem's firmware. 

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.

The MT2834BL features ITU V.42 error correction and V.42bis data compression, providing 100% error-free data transmission. 

Our IBM Options External V.34Data/Fax Modem model number MT2834BLK has a serial number of 42-P2055. It is complete with power supply, cables, and manuals, all in the original IBM Options box.