Dell 1815dn Service Manual - Page 21

dBm for V.17, V.29, V.27 ter and V.21 Channel 2, V.17, V.34, V.27 ter, and V.21 Channel 2

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Page 21 highlights

System Outline Modem (SFX336) specification. 2-wire half-duplex fax modem modes with send and receive data rates up to 33,600 bps V.17, V.34, V.29, V.27 ter, and V.21 Channel 2 Short train option in V.17 and V.27 ter 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 Receive dynamic range: 0 dBm to 43 dBm for V.17, V.29, V.27 ter and V.21 Channel 2 9dBm to -43 dBm for V.34 half-duplex Digital speaker output to monitor received signal Two16-byte FIFO data buffers for burst data transfer with extension up to 255 bytes V.21 Channel 1Flag detect V.21 Channel 1Flag detect +3.3V only operation Typical power consumption Normal mode: 264 mW Service Manual 4-3

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System Outline
Service Manual
4-3
Modem (SFX336) specification.
2-wire half-duplex fax modem modes with send and receive data rates up to 33,600 bps
V.17, V.34, V.29, V.27 ter, and V.21 Channel 2
Short train option in V.17 and V.27 ter
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
Receive dynamic range:
0 dBm to
43 dBm for V.17, V.29, V.27 ter and V.21 Channel 2
9dBm to -43 dBm for V.34 half-duplex
Digital speaker output to monitor received signal
Two16-byte FIFO data buffers for burst data transfer with extension up to 255 bytes
V.21 Channel 1Flag detect
V.21 Channel 1Flag detect
+3.3V only operation
Typical power consumption
Normal mode: 264 mW