Oki B4100, Maintenance Manual

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40055101TH Rev.4
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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:
33600 bps (V.34) is available for OKIFAX 5500/5600
when serviceman set to enable.
ITU-T Rec. V.21 channel 2 (300 bps)
Automatic fallback will occur according to the following sequence
by FTT, RTN or PPR.
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
fallback rank.
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: In high-speed protocol, 28.8 K-bps are not supported.
Note 2: V.34 modern performs the fall-back depending upon the
line condition automatically.
Table 1.5.1 (7/10) Basic Performance Specifications
No. Item Specifications
Rev.2
Rev.2
Fallback
rank
1st
2nd
3rd
4th
5th
6th
Transmission
speed
14400 bps
12000 bps
9600 bps
7200 bps
4800 bps
2400 bps
Activated by
FTT (Times)
1
1
1
1
2
2
Activated by
RTN (Times)
1
1
1
1
1
1
Activated by
PPR (Times)
4 (Note 1)
4 (Note 1)
4 (Note 1)
4 (Note 1)
4 (Note 1)
4 (Note 1)
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.
1st
2nd
3rd
4th
5th
6th
7th
8th
9th
10th
11th
12th
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)
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
28800 bps
26400 bps
24000 bps
21600 bps
19200 bps
16800 bps
14400 bps
12000 bps
9600 bps
7200 bps
4800 bps
2400 bps
Fallback rank Transmission speed Activated byPPR (Times)
Protocol
24 MODEM
1)
High-speed MODEM
2) Low-speed MODEM
25 Fallback
26 Protocol