Ricoh B079 Service Manual page 798

BIT SWITCHES
G3-1 Switch 04
No FUNCTION
0 Training error detection
to threshold
3
4-7 Not used
G3-1 Switch 05
No FUNCTION
0 Initial Tx modem rate
to Bit 3 2 1 0 Setting (bps)
3 0 0 0 1 2.4 k
0 0 1 0 4.8 k
0 0 1 1 7.2 k
0 1 0 0 9.6 k
0 1 0 1 12.0 k
0 1 1 0 14.4 k
0 1 1 1 16.8 k
1 0 0 0 19.2 k
1 0 0 1 21.6 k
1 0 1 0 24.0 k
1 0 1 1 26.4 k
1 1 0 0 28.8 k
1 1 0 1 31.2 k
1 1 1 0 33.6 k
Other settings - Not used
4 Initial modem type for 9.6 k or
to 7.2 kbps.
5 Bit 5 Bit 4
0 0
0 1
1 0
1 1
6-7 Not used
B547
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0 - F (Hex); 0 - 15 bits
If the number of error bits in the received TCF is
below this threshold, the machine informs the
sender that training has succeeded.
Do not change the settings.
These bits set the initial starting modem rate for
transmission.
Use the dedicated transmission parameters if you
need to change this for specific receivers.
If a modem rate 14.4 kbps or slower is selected, V.8
protocol should be disabled manually.
Cross reference
V.8 protocol on/off - G3 switch 03, bit2
These bits set the initial modem type for 9.6 and 7.2
kbps, if the initial modem rate is set at these speeds.
Setting
V.29
V.17
V.34
Not used
Do not change the settings.
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COMMENTS
COMMENTS
72
SP No. 1-105-005
SP No. 1-105-006
SM