How To Analyze The T30 Protocol Monitor - Konica Minolta bizhub C35 Service Manual

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Field Service Ver. 1.0 Feb. 2010

11.4 How to analyze the T30 protocol monitor

• DCS or DIS
• HEX data as printed on page.
• Example: V.17 communication
V17 14400 V17 14400
00:02'55 CED
00:06'64 CSI
00:07'25 DCS
• FIF (Facsimile Information Field)
HEX
0
Data bit
0 0 0 0 0 0 0 0 0
Bit No.
8 7 6 5 4 3 2 1 16 15 14 13 12 11 10 9 24 23 22 21 20 19 18 17 32 31 30 29 28 27 26 25
Bit No.11= 1, Bit No.12=0 7200 bps
Note
Bit No.15= 1 R8 x 7.7 Lines/mm (Fine Mode)
Bit No.19= 0, Bit No.20=1 Unlimited Paper Length
• Hex-binary conversion list
Hex Binary
0 0 0 0
1 0 0 0
2 0 0 1
3 0 0 1
[Data Dump - Protocol]
--- MR
FF 03 40 20 20 20 20...
FF 13 83 00 46 88 00...
Means address
1
0 4
1 0 0 0 1 1 0 1 0 0 0 1 0 0 0
↑ ↑ ↑
Hex Binary
0 4 0 1 0
1 5 0 1 0
0 6 0 1 1
1 7 0 1 1
ECM 200x200
FIF (Facsimile Information Field)
FCF (Facsimile Control Field)
= 83: DCS, 80: DIS
Means Last Control Field.
6 8 8
↑ ↑
Hex Binary
0 8 1 0 0
1 9 1 0 0
0 A 1 0 1
1 B 1 0 1
11. FAX PROTOCOLS
P 1
12.25.2009 14:30
Serial No. XXXXXXXXXXXXX
2
0 0
0 0 0 0 0 0 0 0
Hex Binary
0 C 1 1 0
1 D 1 1 0
0 E 1 1 1
1 F 1 1 1
181
0
1
0
1