Konica Minolta FK-502 Service Manual page 67

2. COMMUNICATION CONTROL
H. Others
(1) Minimum reception signal level (RLSD) (half-duplex mode only)
• The reception circuit is turned to On when the signal becomes 43 dBm or more
• When the signal becomes 48 dBm or less, the reception circuit is turned Off within 20 to
25ms after it has exceeded the thresh old.
(2) Data frame structure
• All data transmitted in V.34 (after the Phase 4) is treated in the following frame format.
J :The number of data frames within one super frame
P :The number of mapping frames within one data frame
Super frame
Data frame
Mapping frame
Four-dimensional symbol
Modulation Speed
2400 baud
2743 baud
2800 baud
3000 baud
3200 baud
3429 baud
44
0 1
40 or 35ms
1
0
J=0 1 2 3
1
K=0
J
7
8
7
7
7
8
Field Service Ver. 9.0 Jan. 2010
280ms
...
...
P-1
P
12
12
14
15
16
15
J-1