Ricoh B039 Service Manual page 476

Switch 04
No FUNCTION
4 V.8 protocol
0: Off
1: Disabled
5 Compression modes available
in transmit mode
0: MH only
1: Disabled
6 ECM during transmission
7 Bit 7 Bit 6 Setting
0 0 Off
0 1 On
1 0 Not used
1 1 Disabled
Switch 05 - Not used (do not change the settings)
Switch 06 - Not used (do not change the settings)
Switch 07 - Not used (do not change the settings)
Switch 08 - Not used (do not change the settings)
Switch 09 - Not used (do not change the settings)
Switch 0A - Not used (do not change the settings)
SM
DEDICATED TRANSMISSION PARAMETERS
COMMENTS
If transmissions to a specific destination always end
at a lower modem rate (14,400 bps or lower),
disable V.8 protocol so as not to use V.34 protocol.
0: V.34 communication will not be possible.
If the setting is 'Disabled', the bit switch setting is
used.
This bit determines the capabilities that are informed
to the other terminal during transmission.
If the setting is 'Disabled', the bit switch setting is
used.
For example, if ECM is switched on but is not
wanted when sending to a particular terminal, use
the (0, 0) setting.
Note that V.8/V.34 protocol and JBIG compression
are automatically disabled if ECM is disabled.
If the setting is 'Disabled', the bit switch setting is
used.
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