How To Analyze The T30 Protocol Monitor - NEC NEFAX 671 Service Manual

7-4.

How to analyze the T30 protocol monitor

• DCS or DIS
• HEX Data as printed on page.
☞ S-67, S-79
• Example: V.17 Communication
NAME: ABC
TEL:886 3 4733507
DATE: APR.23'04 12:20
SESSION FUNCTION NO
0001 TX 01
TX RX
• FIF (Facsimile Information Field)
HEX
0 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 19 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 Hex
0 0 0 0 0 4
1 0 0 0 1 5
2 0 0 1 0 6
3 0 0 1 1 7
PROTOCOL MONITOR REPORT
DESTINATION STATION DATE TIME
ABC
DEC.0
22345678901234567890
2
FF 13 83 00 46 88 00...
FIF (Facsimile Information Field)
FCF (Facsimile Control Field)
= 83: DCS, 80: DIS
Means Last Control Field.
Means address
1
4 6
1 0 0 0 1 1 0 1 0 0 0 1 0 0 0
↑ ↑ ↑
Binary Hex
0 1 0 0 8 1
0 1 0 1 9 1
0 1 1 0 A 1
0 1 1 1 B 1
S-160
PAGE MODE RESULT
ECM-
15:00 008 OK
12
DATA
2
8 8 0
0 0 0 0 0 0 0 0
↑ ↑
Binary Hex Binary
0 0 0 C 1 1
0 0 1 D 1 1
0 1 0 E 1 1
0 1 1 F 1 1
0
0 0
0 1
1 0
1 1