CX20468-31/CX20493-21AMCi Specifications
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Feature Description
Manufacturer Conexant
Model number CX20468-31/CX20493-21AMCi
Features
  • ITU-T V.92: 28,000 to 56,000 bps
  • Ultra high compression throughput due to parallel access directly to the host computer
  • ITU-T V.34 extended rates: 2,400 to 33,600 bps V.32terbo, V.32bis, and fallbacks
  • ITU-T V.42 error correction (LAPM and MNP)
  • ITU-T V.42bis and MNP Class 5 data compression
  • Support Fax ITU-T V.17, V.29, V.27ter, and V.21 Ch2
  • TIA//EIA 578 Class 1 fax
  • TIA//EIA 602 standard for AT command set
  • MC'97 2.1 compliant
Compatibility
  • V.90 - 5,600, 54,667, 53,333, 52,000, 50,667, 49,333, 48,000, 46,667, 45,333, 42,667, 41,333, 40,000, 38,667, 33,333, 32,000, 30,667, 29,333, and 28,000 bps
  • ITU-T V.34 annex - 33,600 and 31,200 bps
  • ITU-T V.34 - 28,800, 36,400, 24,000, 21,600, 19,200, and 16,800 bps
  • ITU-T V.32 bis - 14,400, 12,000, 9,600, 7,200, and 4,800 bps
  • ITU-T V.32 - 9,600 and 4,800 bps
  • ITU-T V.22 bis - 2,400 and 1,200 bps
  • ITU-T V.22 - 1,200 bps
  • ITU-T V.17 - 14,400, 12,000, 9,600, and 7,200 bps
  • ITU-T V.29 - 9,600, 7,200, and 4,800 bps
  • ITU-T V.27ter - 4,800 and 2,400 bps
  • Bell 212A - 1,200 bps
Modulation
  • 5,600 bps - PCM
  • 33,600, 31,200 bps (V.34annex) - TCM
  • 28,800, 26,400, 24,000, 21,600, 19,200, 16,800 bps - TCM
  • 14,400, 12,000, 9,600, 7,200 bps (V.32bis) - TCM
  • 4,800 bps (V.32bis) - QAM
  • 9,600, 4,800 bps (V.32) - TCM, QAM
  • 2,400 bps (V.22bis) - QAM
  • 1,200 bps (V.22bis) - DPSK
  • 14,400, 12,000, 9,600, 7,200 bps (V.17) - TCM
  • 9,600, 7,200, 4,800 bps (V.29) - QAM
  • 4,800, 2,400 bps (V.27ter) - DPSK
  • 1,200 bps (V.22/Bell 212A) - DPSK
Operation
  • Full duplex or half duplex in data mode
  • Asynchronous operation
  • Auto dial/answer
  • Manual originate/answer
Fax mode
  • Fax modem send and receive rates up to 14400bps
  • ITU-T V.17, V.29, V.27ter, and V.21 channel 2