Ricoh fax3900l Betriebsanweisung
Appendix
40
5
Communications Speed
*1
The ITU-T V.90 communications protocol supports reception speeds of up to 56000
bps and transmission speeds of up to 33600 bps. For communications at a speed high-
bps and transmission speeds of up to 33600 bps. For communications at a speed high-
er than 33600 bps, the host machine must support ITU-T V.90.
The communication standard used by this product for communication at 56000
is ITU-T V.90.
is ITU-T V.90.
Communication
Speed
Speed
56000/54667/53333/52000/50667/49333/48000/46667/45333/44000/
42667/41333/40000/38667/37333/36000/34667/33333/32000/30667/
29333/28000 bps (reception only)
42667/41333/40000/38667/37333/36000/34667/33333/32000/30667/
29333/28000 bps (reception only)
33600/31200/28800/26400/24000/21600/19200/16800/14400/12000/
9600/7200/4800/2400/1200/300 bps (transmission)
9600/7200/4800/2400/1200/300 bps (transmission)
Communication
Standard
Standard
ITU-T V.34/V.32bis/V.32/V.22bis/V.22/V.21
ITU-T V.90
*1
Modulation/
Demodulation
Demodulation
FSK: 300 bps
DPSK: 1200 bps
QAM: 9600/4800/2400 bps
TCM:
33600/31200/28800/26400/24000/21600/19200/16800/14400/12000/
9600/7200/4800/2400 bps
9600/7200/4800/2400 bps
V.90 (reception only):
56000/54667/53333/52000/50667/49333/48000/46667/45333/44000/
42667/41333/40000/38667/37333/36000/34667/33333/32000/30667/
29333/28000 bps
42667/41333/40000/38667/37333/36000/34667/33333/32000/30667/
29333/28000 bps
Smt4EN-PDU-F_FM.book Page 40 Monday, September 11, 2000 1:47 PM