Ricoh A250 Service Manual page 514

BIT SWITCHES
G3 Switch 0C
No FUNCTION
0 Pulse dialing method
1 Bit 1 Bit 0
0 0
0 1
1 0
1 1
2-7 Not used
G3 Switch 0D
No FUNCTION
0-1 Not used
2 Data rate threshold during
to V.34 reception
5 Bit 5 4 3 2
0 0 0 0
0 1 1 1
1 1 1 1
6 Not used
7 B signal detection time for
V.34 polling transmission
0: 75 ms (default setting)
1: 65 ms
G3 Switch 0E - Not used (do not change the settings)
G3 Switch 0F
No FUNCTION
0 Alarm when an error occurred
in Phase C or later
0: Disabled
1: Enabled
1 Alarm when the handset is
off-hook at the end of
communication
0: Disabled
1: Enabled
2-7 Not used
A250
Setting
Normal
(P=N)
Oslo
(P=10 - N)
Sweden
(N+1)
Not used
Setting
Normal
:
Lower by
one step
:
Lower by
two steps
COMMENTS
P = Number of pulses sent out, N = Number
dialed.
Do not change the settings.
COMMENTS
Do not change the settings.
The machine changes the modulation parameters
in the MPh signal to lower the initial modem rate
during V.34 reception. If this switch is set to
"0111", the machine lowers the initial speed one
step, for example, from 28,800 to 26,400 bps.
This switch reduces transmission time if the
machine frequently sends PPR signals during
V.34 reception.
Do not change the settings.
Change this switch only when there are
communication errors during V.34 polling
transmission to a machine with a Panasonic
modem.
COMMENTS
If the customer wants to hear an alarm after each
error communication, change this bit to "1".
If the customer wants to hear an alarm if the
handset is off-hook at the end of fax
communication, change this bit to "1".
Do not change the settings.
4-52 SM