05/2014
6-280
DC SC2020
6.6.4.1 Protocol Trace
Version 1.1
General
6.6.4.1 Protocol Trace
T.30 PROTOCOL TRACE DIS/DCS (Year 2000 version)
According to the recommendation in year 2000 ITU-T (previously, CCITT), FIF Bit assignment of DIS,
DCS, DTC signals was modified and reached the maximum of 12 bytes (96 bits). According to the new
recommendation (F Code/Color Fax/Internet Fax unctions, etc), the assignment of individual Bits is dis-
played as follows. (DIS FIF=20EEFAC4801F is used as an example)
Link is provided inside each Bit in the following illustration described in the Electronic Manual. Press the
button of the item to link to its contents description.
NOTE: *The stamp sets the reserved Bit to '0'.
NOTE: JBIG: Joint Bi-level Image Coding Experts Group... Binary Image Encoding Method, Reversible
(can be restored to original data after compression/expansion), for BW Fax Use
JPEG: Joint Photographic Coding Experts Group... Multi-Value Natural Image Encoding Method,
Non-Reversible (cannot be restored to original data once compressed or expanded), for Color Fax
Use
Figure 1 j0mf2701
Table 1
Hexadecimal
number Binary
0 0000
1 0001
2 0010
3 0011
4 0100
5 0101
6 0110
7 0111
8 1000
9 1001
A 1010
B 1011
C 1100
D 1101
E 1110
F 1111
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