Olivetti d-Color MF4003 Service Manual page 671

d-Color MF4003/MF3303
Head octet
Expansion octet
• (1): Category tag (tags which represent information types)
Bit assignment
b0 b1 b2 b3
1 0 0 0
1 0 1 0
0 1 0 1
1 0 1 1
0 1 1 0
• (2): Option bit (Differs depending on category tags. See "
• (3): Additional option bit (Differs depending on category tags. See "
(4) Common signal bit definition
(a) Call function (1 octet)
Top octet
b0 b1 b2 b3
1 0 0 0
• (Other than the above = Reserved)
(b) Modulation mode (3 octets)
1st octet
b0 b1 b2 b3
1 0 1 0
2nd octet
b0 b1 b2 b3
0
0/1
0/1
0/1
3rd octet
b0 b1 b2 b3
0
0/1
0/1
0/1
Y119930-3
Start bit
b0 b1 b2 b3
0 4 bits
(1)
Start bit b0 b1 b2 b3
0 3 bits
(3)
Meaning (information type)
... Call Func
... Modulation Mode
... Protocols
... GSTN access
... PCM modem ability
b4 b5 b6 b7
0 (Call Function category tag)
0 0 0 Defined by ITU-T
1 0 0 PSTN multi-media terminal
0 1 0 V18 text phone
1 1 0 Video tex
0 0 1 FAX transmission from the calling terminal
1 0 1 FAX reception in the calling terminal
0 1 1 Data transmission / reception
1 1 1 Expansion octet = with call function represented by next octet
b4 b5 b6 b7
0 (Modulation mode category tag, b4 = 0 is first octet)
0/1 PCM modem ability disabled/enabled
0/1 V34 full-duplex ability disabled/enabled
0/1 V34 half-duplex ability disabled/enabled
b4 b5 b6 b7
1 0 (b3, 4 and 5=0, 1, 0 means expanded oct.)
V32 bis / V32 ability disabled / enabled
V22 bis / V22 ability disabled / enabled
V17 ability disabled / enabled
0/1 V29 half-duplex ability disabled / enabled (used in T.30)
0/1 V27 ter ability disabled / enabled
b4 b5 b6 b7
1 0 (b3, 4 and 5=0, 1, 0 means expanded oct.)
V26 ter ability disabled / enabled
V26 bis ability disabled / enabled
V23 full-duplex ability disabled / enabled
Stop bit
b4 b5 b6 b7
0 3 bits
(2)
Stop bit
b4 b5 b6 b7
0 1 0 2 bits
P.8.1.3 (4) Common signal bit
P.8.1.3 (4) Common signal bit
P-97
P THEORY OF OPERATION > 8. FK-517
1
1
Included signal
Top of CM, JM / CI
CM/JM
CM/JM
CM/JM
CM/JM
definition".)
definition".)
Meaning
Meaning
Meaning
Meaning
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Item No.
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Service Manual