Ricoh D025 Service Manual page 1449

Bit Switches
1 1
Other settings - Not used
Initial modem type for 9.6 k or
7.2 kbps.
Bit 5: 0, Bit 4: 0 = V.29
4-5
Bit 5: 0, Bit 4: 1 = V.17
Bit 5: 1, Bit 4: 0 = V.34
Bit 5: 1, Bit 4: 1 = Not used
6-7 Not used
G3 Switch 06 [SP No. 1-105-007]
No FUNCTION
0-3 Initial Rx modem rate
Bit 3 Bit 2 Bit 1 Bit 0
0 0
0 0
0 0
0 1
0 1
0 1
0 1
1 0
1 0
1 0
1 0
D393
1 0 33.6k
These bits set the initial modem type for 9.6 and
7.2 kbps, if the initial modem rate is set at these
speeds.
Do not change the settings.
bps
0 1 2.4k
1 0 4.8k
1 1 7.2k
0 0 9.6k
0 1 12.0k
1 0 14.4k
1 1 16.8k
0 0 19.2k
0 1 21.6k
1 0 24.0k
1 1 26.4k
COMMENTS
These bits set the initial starting modem
rate for reception.
Use a lower setting if high speeds pose
problems during reception.
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
108 SM