Xerox 3300MFP - Phaser B/W Laser, Servce Manual

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2-20 Phaser 3300MFP Service Manual
Theory of Operation
Modem (SFX336) specification.
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2-wire half-duplex fax modem modes with send and receive data rates up
to 33.600 bps
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V.17, V.34, V.29, V.27 ter, and V.21 Channel 2
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Short train option in V.17 and V.27 ter
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PSTN session starting
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V.8 and V.8 bis signaling
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HDLC support at all speeds
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Flag generation, 0-bit stuffing, ITU CRC-16 or CRC-32 calculation and
generation
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Flag detection, 0-bit deletion, ITU CRC-16 or CRC-32 check sum error
detection
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FSK flag pattern detection during high-speed receiving
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Tone modes and features
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Programmable single or dual tone generation
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DTMF receiver
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Tone detection with three programmable tone detectors
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Receive dynamic range:
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0 dBm to -43 dBm for V.17, V.29, V.27 ter and V.21 Channel 2
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9 dBm to -43 dBm for V.34 half-duplex
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Digital speaker output to monitor received signal
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Two 16-byte FIFO data buffers for burst data transfer with extension up to
255 bytes
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V.21 Channel 1Flag detect
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V.21 Channel 1Flag detect
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+3.3 V only operation
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Typical power consumption
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Normal mode: 264 mW