Konica Minolta FK-502 Service Manual page 58

Field Service Ver. 9.0 Jan. 2010
<Signal format>
1. Preamble: a signal added before each signal when CI, CM and JM signals are sent.
Format: 1111111111+0000000001 (for CI)
2. Common format among each signal CI, CM and JM
• Start Bit (=0) is put at the top and Stop Bit (=1) is put at the end of each octet.
Head octet
Expansion octet
(1):Category tag (tags which represent information types)
Bit assignment
b0 b1 b2
1 0 0
1 0 1
0 1 0
1 0 1
0 1 1
(2):Option bit (Differs depending on category tags. See the next item, bit definition.)
(3):Additional option bit (Differs depending on category tags. See the next item, bit defini-
tion.)
+0000001111 (for CM and JM)
Start bit
b0 b1
0 4 bits
(1)
Start bit
b0 b1
0 3 bits
(3)
Meaning (information type)
b3
0 ... Call Func
0 ... Modulation Mode
1 ... Protocols
1 ... GSTN access
0 ... PCM modem ability
2. COMMUNICATION CONTROL
b2 b3 b4 b5 b6
0 3 bits
(2)
b2 b3 b4 b5 b6
0 1 0 2 bits
Top of CM, JM / CI
CM / M
CM / M
CM / M
CM / JM
Stop bit
b7
1
Stop bit
b7
1
Included signal
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