Oki B 4100 Maintenance Manual page 23

No. Item
24 MODEM
1) High-speed MODEM
Rev.2
2) Low-speed MODEM
25 Fallback
Rev.2
Fallback
rank
1st
2nd
3rd
4th
5th
6th
Fallback rank
1st
2nd
3rd
4th
5th
6th
7th
8th
9th
10th
11th
12th
26 Protocol
40055101TH Rev.4
Table 1.5.1 (7/10) Basic Performance Specifications
a) ITU-T Rec. V.29 (9600/7200 bps)
b) ITU-T Rec. V.27 ter (4800/2400 bps)
c) ITU-T Rec. V.17 (14400/12000/9600/7200 bps)
d) ITU-T Rec. V.33 (14400/12000 bps)
e) ITU-T Rec. V.34 (28800 bps); for OKIFAX 5500/5600
Note:
ITU-T Rec. V.21 channel 2 (300 bps)
Automatic fallback will occur according to the following sequence
by FTT, RTN or PPR.
Transmission Activated by
FTT (Times)
speed
14400 bps 1
12000 bps 1
9600 bps 1
1
7200 bps
2
4800 bps
2
2400 bps
When the last trial fails, the transmitting station sends out a DCN
signal to the remote station for disconnection.
Note 1: Continuous PPRs for the same partial page within each
Transmission speed
28800 bps
26400 bps
24000 bps
21600 bps
19200 bps
16800 bps
14400 bps
12000 bps
9600 bps
7200 bps
4800 bps
2400 bps
Note 2: V.34 modern performs the fall-back depending upon the
1) ITU-T Rec. T.30
2) Oki Data special protocol
High-speed protocol
The T.30 protocol signal from the transmitting station is sent at
message transmission speed instead of 300 bps.
Note:
Specifications
33600 bps (V.34) is available for OKIFAX 5500/5600
when serviceman set to enable.
Activated by Activated by
RTN (Times) PPR (Times)
1 4 (Note 1)
1 4 (Note 1)
1
4 (Note 1)
1
4 (Note 1)
1
4 (Note 1)
1
4 (Note 1)
fallback rank.
Activated byPPR (Times)
1 (Note 1)
1 (Note 1)
1 (Note 1)
1 (Note 1)
1 (Note 1)
1 (Note 1)
1 (Note 1)
1 (Note 1)
1 (Note 1)
1 (Note 1)
1 (Note 1)
1 (Note 1)
line condition automatically.
In high-speed protocol, 28.8 K-bps are not supported.
Protocol
ITU-T V.17 (V.33)
ITU-T V.17 (V.33)
ITU-T V.17 (V.29)
ITU-T V.17 (V.29)
ITU-T V.27 ter.
ITU-T V.27 ter.
Protocol
ITU-T V.34
ITU-T V.34
ITU-T V.34
ITU-T V.34
ITU-T V.34
ITU-T V.34
ITU-T V.34
ITU-T V.34
ITU-T V.34
ITU-T V.34
ITU-T V.34
ITU-T V.34
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