Itu Standards (Ccitt) - Siemens Insys 56k Operating Manual

Pocket Modem 56k
12.6

ITU Standards (CCITT)

ITU Standards (CCITT) Meaning
V.21
V.22
V.22bis
V.23
V.23 half-duplex
V25bis
V.32
V.32bis
V.FC
V.34
V.34+
V.42
V42bis
V.90
V.92
Bps indicates the transmitted bits per second. Full duplex means that the transmission
takes place into both directions.
Dezember 05
Transmission with 300 bps full duplex
Transmission with 1,200 bps full duplex
Transmission with 2,400 bps full duplex
Send with 75 bps and receive with 1,200 bps and vice versa (full duplex).
Send or receive with 1,200 bps (half duplex)
Alternate command set for AT command set
Transmission with 9,600 bps or (fallback) 7,200, 4,800 bps.
Transmission with 14,400 bps or (fallback) 12,000, 9,600, 7,200, 4,800 bps.
Transmission with 28,800 bps or (fallback) 26,400, 24,000, 21,600, 19,200,
16,800, 14,400 bps.
Transmission with 28,800 bps or (fallback) 26,400, 24,000, 21,600, 19,200,
16,800, 14,400 bps.
Transmission with 33,600 bps or (fallback) 31,200, 28,800, 26,400, 24,000,
21,600, 19,200, 16,800, 14,400 bps.
Error protection method for DCE's with asynchronous-to-synchronous
conversion
Data compression method
Receive with 56,000 bps or (fall back) 54,667, 53,333, 52,000, 50,667, 49,333,
48,000, 46,667, 45,333, 42,667, 41,333, 40,000, 38,667, 37,333, 36,000, 34,667,
33,333, 32,000, 30,667, 29,333, 28,000 bps.
Send with 33,600 bps or (fall back) 31,200, 28,800, 26,400, 24,000, 21,600,
19,200, 16,800, 14,400 bps.
Receive with 56,000 bps or (fall back) 54,667, 53,333, 52,000, 50,667, 49,333,
48,000, 46,667, 45,333, 42,667, 41,333, 40,000, 38,667, 37,333, 36,000, 34,667,
33,333, 32,000, 30,667, 29,333, 28,000 bps.
Send with 48,000 bps or (fall back) 46,667, 45,333, 42,667, 41,333, 40,000,
38,667, 37,333, 36,000, 34,667, 33,333, 32,000, 30,667, 29,333, 28,000 bps.
Technical Data
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