The Conexant™ FM336Plus High Performance Fax Modem family offers ITU-T V.34 half-duplex mode operation that supports synchronous Group 3 facsimile send and receive speeds up to 33600 bits per second (bps). The FM336Plus-D and FM336Plus-D90 support ITU-T V.34 duplex data and synchronous/asynchronous modes with rates up to 33600 bps. The FM336Plus-D90 also supports ITU-T V.90 PCM mode, which can receive data at speeds up to 56 kbps.

Features

(Entire FM336Plus Family)

• 2-wire half-duplex fax modem modes with send and receive data rates up to 33600 bps

− V.34 half-duplex, V.17, V.33, V.29, V.27 ter, and V.21 channel 2

− Short train option in V.17 and V.27 ter

• 2-wire duplex data modem modes

− V.21, V.23 (75 bps TX/1200 bps RX or 1200 bps TX/75 bps RX)

• PSTN session starting

− V.8 and V.8bis signaling

• HDLC support at all speeds

− Flag generation, 0-bit stuffing, ITU CRC-16 or CRC-32 calculation and generation

− Flag detection, 0 bit deletion, ITU CRC-16 or CRC-32 check sum error detection

− FSK flag pattern detection during high-speed receiving

• Tone modes and features

− Programmable single or dual tone generation

− DTMF receiver

− Tone detection with three programmable tone detectors

• Serial synchronous data

• Parallel synchronous data

• Automatic Rate Adaptation (ARA) in V.34 half-duplex

• Auto-dial and auto-answer control

• TTL and CMOS compatible DTE interface

− ITU-T V.24 (EIA/TIA-232-E) (data/control)

− Microprocessor bus (data/configuration/control)

• Receive dynamic range:

− 0 dBm to –43 dBm for V.17, V.33, V.29, V.27 ter and V.21

− –9 dBm to –43 dBm for V.34 halfduplex

• Quick Start for V.34 half-duplex (Conexant Proprietary)

• Caller ID Demodulation

• Call Waiting Detector

• ADPCM Voice Mode

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