Oki OKIOFFICE 84 Service Manual page 27

Table 1.5.1 (6/9) Basic Performance Specifications
No. Item
22
Minimum scan line time for
receiving
23
Coding scheme
24
MODEM
1) High-speed Modem
2) Low-speed Modem
25
Fallback
Fallback rank Transmission
speed
1st 14400 bps
2nd 12000 bps
3rd 9600 bps
4th 7200 bps
5th 4800 bps
6th 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 fallback rank.
No. Item
26
Protocol
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Service Guide OKIOFFICE 84
Chapter 1 General Information
Specifications
0 ms, when receiving in ECM mode or from an Oki Data facsimile.
5 ms at 15.4 line/mm or 7.7 line/mm and 10 ms at 3.85 line/mm when
receiving from a non-Oki Data facsimile or non-ECM mode.
1) One-dimensional coding scheme:
Modified Huffman (MH)
2) Two-dimensional coding scheme:
Modified READ (MR)
Modified modified READ (MMR)
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)
ITU-T Rec. V.21 channel 2 (300 bps)
Automatic fallback will occur according to the following sequence by
FTT, RTN or PPR.
Activated by FTT Activated by RTN
(Times)
1
1
1
1
2
2
Specifications
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.
(This function is disable when the H/Modem rate is set to 9.6
kbit/s by TS No.13)
Activated by PR
(Times) (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)
Page: 16
Protocol
ITU-T V.17 (V.17)
ITU-T V.17 (V.17)
ITU-T V.17 (V.29)
ITU-T V.17 (V.29)
ITU-T V.17 V.27 ter.
ITU-T V.17 V.27 ter.