CIRCUIT OPERATIONS
- 137 -
KX-FT21LA
0
2400 bit/s handshaking
Bit No. DIS/DTC
24
25
26
27
28
29
30
31
32
33
(0)
(1)
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
Extend field
2400 bit/s handshaking
Uncompressed mode
Error correction mode
Set to "0"
Error limiting mode
Reserved for G4 capability on PSTN
Unassigned
Extend field
Validity of bits 17,18
Bits 17,18 are valid
Bits 17,18 are invalid
Recording width capability of 1216 picture elements
along a scan line length of 151 mm • } 1%
Recording width capability of 864 picture elements
along a scan line length of 107 mm • } 1%
Recording width capability of 1728 picture elements
along a scan line length of 151 mm • } 1%
Recording width capability of 1728 picture elements
along a scan line length of 107 mm • } 1%
Reserved for future recording width capabilities.
Reserved for future recording width capabilities.
Extend field
Semi super time / mm
Semi super time / inch
Super time
inch
mm
MSC/SF
Select polling
EXT
1
0
0
0
0
0
0
1
0
0
0
0
0
0
0
1
1
0
1
0
0
0
0
0
Note 1 - Standard facsimile units conforming to T.2 must have the following capability : Index of cooperation (IOC)=264.
Note 2 - Standard facsimile units conforming to T.3 must have the following capability : Index of cooperation (IOC)=264.
Note 1 - Standard facsimile units conforming to T.4 must have the following capability : Paper length=297 mm.
Training 1
CFR
(Confirmation to Receive)
Training 2
Signal
X0100001
Identification Signal Format
TCF
(Training Check)
A fixed pattern is transmitted to the receiving side at a speed
(2400 to 9600 bps) designated by DCS, and the receiving side
optimizes the automatic equalizer, etc., according to this signal.
Sends 0 continuously for 1.5 seconds at the same speed as the
training signal.
Notifies the sending side that TCF has been properly received.
If TCF is not properly received, FTT (Failure To Train)
X0100010 is relayed to the sender. The sender then reduces
the transmission speed by one stage and initiates training once
again.
Used for reconfirming the receiving side like training 1.
Function
DCS
Extend field
Uncompressed mode
Error correction mode
Frame size 0 = 256 octets
1 = 64 octets
Error limiting mode
Reserved for G4 capability on PSTN
Extend field
Recording width
Recording width indicated by bits 17,18
Recording width indicated by this field bit
information
Middle 1216 elements of 1728 picture
elements
Middle 864 elements of 1728 picture
elements
Invalid
Invalid
Extend field
Standard setting
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