Ricoh B121 Service Manual page 482

BIT SWITCHES
G3-1 Switch 06
No FUNCTION
0 Initial Rx 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 Modem types available for
to reception
7 Bit 7 6 5 4 Setting
0 0 0 1 V.27ter
0 0 1 0 V.27ter, V.29
0 0 1 1 V.27ter, V.29
0 1 0 0 V.27ter, V.29,
0 1 0 1 V.27ter, V.29,
Other settings - Not used
B620
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
The setting of these bits is used to inform the
transmitting terminal of the available modem type for
the machine in receive mode.
If V.34 is not selected, V.8 protocol must be
disabled manually.
V.33
Cross reference
V.17/V.33
V.8 protocol on/off - G3 switch 03, bit2
V.17/V33,
V.34
COMMENTS
44
SP No. 1-105-007
B620