Ricoh B291 Service Manual page 814

BIT SWITCHES
G3-2 Switch 05
No FUNCTION
0 Initial Tx modem rate
to Bit 3 2 1 0
3 0 0 0 1
0 0 1 0
0 0 1 1
0 1 0 0
0 1 0 1
0 1 1 0
0 1 1 1
1 0 0 0
1 0 0 1
1 0 1 0
1 0 1 1
1 1 0 0
1 1 0 1
1 1 1 0
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
G3-2 Switch 06
No FUNCTION
0 Initial Rx modem rate
to Bit 3 2 1 0
3 0 0 0 1
0 0 1 0
0 0 1 1
0 1 0 0
0 1 0 1
0 1 1 0
0 1 1 1
1 0 0 0
1 0 0 1
1 0 1 0
1 0 1 1
1 1 0 0
1 1 0 1
1 1 1 0
Other settings - Not used
B779
CÓPIA NÃO CONTROLADA
These bits set the initial starting modem rate for
Setting (bps)
transmission.
2.4 k
4.8 k Use the dedicated transmission parameters if you
7.2 k need to change this for specific receivers.
9.6 k
12.0 k If a modem rate 14.4 kbps or slower is selected, V.8
14.4 k protocol should be disabled manually.
16.8 k
19.2 k
Cross reference
21.6 k
V.8 protocol on/off - SG3 switch 03, bit2
24.0 k
26.4 k
28.8 k
31.2 k
33.6 k
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.
These bits set the initial starting modem rate for
Setting (bps) reception.
2.4 k
4.8 k Use a lower setting if high speeds pose problems
7.2 k during reception.
9.6 k
12.0 k If a modem rate 14.4 kbps or slower is selected, V.8
14.4 k protocol should be disabled manually.
16.8 k
19.2 k
Cross reference
21.6 k
V.8 protocol on/off - SG3 switch 03, bit2
24.0 k
26.4 k
28.8 k
31.2 k
33.6 k
76
CÓPIA NÃO CONTROLADA
SP No. 1-106-006
COMMENTS
SP No. 1-106-007
COMMENTS
SM