Ricoh D072 Service Manual page 591

Bit Switches
G3 Switch 05 [SP No. 1-105-006]
No FUNCTION
Initial Tx modem rate
Bit 3 Bit 2 Bit 1 Bit 0
0 0
0 0
0 0
0 1
0 1
0 1
0-3
0 1
1 0
1 0
1 0
1 0
1 1
1 1
1 1
Other settings - Not used
D067/D068/D069/D072
COMMENTS
bps
0 1 2.4k
1 0 4.8k
1 1 7.2k
0 0 9.6k
These bits set the initial starting modem rate for
0 1 12.0k
transmission.
Use the dedicated transmission parameters if
1 0 14.4k
you need to change this for specific receivers.
1 1 16.8k
If a modem rate 14.4 kbps or slower is selected,
V.8 protocol should be disabled manually.
0 0 19.2k
Cross reference
0 1 21.6k
V.8 protocol on/off - G3 switch 03, bit2
1 0 24.0k
1 1 26.4k
0 0 28.8k
0 1 31.2k
1 0 33.6k
7-52 SM Appendix