G3 Switches - Ricoh B039 Service Manual

5.3.5 G3 SWITCHES

G3 Switch 00
No FUNCTION
0 Monitor speaker during
1 communication (tx and rx)
Bit 1 Bit 0 Setting
0 0 Disabled
0 1 Up to Phase B
1 0 All the time
1 1 Not used
2 Monitor speaker during
memory transmission
0: Disabled 1: Enabled
3-7 Not used
G3 Switch 01
No FUNCTION
0-3 Not used
4 DIS frame length
0: 10 bytes 1: 4 bytes
5 Not used
6 CED/ANSam transmission
0: Disabled
1: Enabled
7 Not used
G3 Switch 02
No FUNCTION
0 G3 protocol mode used
0: Standard and non-standard
1: Standard only
1-4 Not used
5 Use of modem rate history for
transmission using
Quick/Speed Dials
0: Disabled
1: Enabled
6 AI short protocol (transmission
and reception)
0: Disabled 1: Enabled
7 Short preamble
0: Disabled 1: Enabled
SM
COMMENTS
(0, 0): The monitor speaker is disabled all through
the communication.
(0, 1): The monitor speaker is on up to phase B in
the T.30 protocol.
(1, 0): Used for testing. The monitor speaker is on
all through the communication. Make sure that you
reset these bits after testing.
1: The monitor speaker is enabled during memory
transmission.
Do not change the settings.
COMMENTS
Do not change the settings.
1: The bytes in the DIS frame after the 4th byte will
not be transmitted (set to 1 if there are
communication problems with PC-based faxes
which cannot receive the extended DIS frames).
Do not change the setting.
Do not change this setting, unless the
communication problem is caused by the
CED/ANSam transmission.
Do not change the setting.
COMMENTS
Change this bit to 1 only when the other end can
only communicate with machines that send T.30-
standard frames only.
1: Disables NSF/NSS signals (these are used in
non-standard mode communication)
Do not change the settings.
0: Communications using Quick/Speed Dials always
start from the highest modem rate.
1: The machine refers to the modem rate history for
communications with the same machine when
determining the most suitable rate for the current
communication.
Refer to the Core Technology Manual for details
about AI Short Protocol.
Refer to the Core Technology Manual for details
about Short Preamble.
5-37
BIT SWITCHES
B404