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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