DP120F/DP125F Dialing and Communication Procedure
9-10
March 2000 © TOSHIBA TEC
2.2.3 Frame Structure of Binary Signals
Each binary signal frame is composed of the following sequences and fields. However, some
binary signals have an FIF field inserted, and others do not.
F: Flag Sequence
Indicates the start or end of a frame. It also establishes the frame synchronization.
A: Address Field
Informs of the address.
C: Control Field
Informs whether this frame is the final frame in this procedure or not.
FCF: Facsimile Control Field
Informs of the kind of binary signal.
FIF: Facsimile Information Field
Informs of the functions of the facsimile, etc.
FCF: Frame Check Sequence
Checks if there was any error in the transmission from “A” to “FIF.”
•
Formats of F, A, and C
F
F
A
C
FCF
FIF
FCS
F
When this frame is the final fame, X=1.
Format
b
1
b
2
b
3
b
4
b
5
b
6
b
7
b
8
F
0
1
1
1
1
1
1
0
A
1
1
1
1
1
1
1
1
C
1
1
0
0
X
0
0
0
Summary of Contents for DP120F
Page 1: ...PLAINPAPERFACSIMILE File No 31200001 R0112216901 TTEC ...
Page 401: ...DP120F DP125F Circuit Description 7 92 March 2000 TOSHIBA TEC 07 05 00 Fig 7 5 1 ...
Page 656: ...DP120F DP125F Troubleshooting 11 44 March 2000 TOSHIBA TEC ...
Page 700: ...DP120F DP125F Appendix 12 2 March 2000 TOSHIBA TEC 1 2 Error Count List ...
Page 701: ...March 2000 TOSHIBA TEC 12 3 DP120F DP125F Appendix 1 3 Function List for Maintenance ...
Page 702: ...DP120F DP125F Appendix 12 4 March 2000 TOSHIBA TEC 1 4 Drum Unit ...
Page 703: ...March 2000 TOSHIBA TEC 12 5 DP120F DP125F Appendix 1 5 Memory Dump List ...
Page 706: ...SHUWA SHIBA PARK BLDG A 2 4 1 SHIBA KOEN MINATO KU TOKYO 105 8524 JAPAN ...