BIT SWITCHES
B404 5-32 SM
5.3.4 COMMUNICATION SWITCHES
Communication Switch 00
No FUNCTION COMMENTS
0
to
1
Compression modes available
in receive mode
Bit 1 0 Modes
00MH only
01MH/MR
1 0 MH/MR/MMR
1 1 MH/MR/MMR/
JBIG
These bits determine the compression capabilities
to be declared in phase B (handshaking) of the T.30
protocol.
(1, 1): Not used in this machine, because it does not
support JBIG.
2
to
3
Compression modes available
in transmit mode
Bit 3 2 Modes
00MH only
01MH/MR
1 0 MH/MR/MMR
1 1 MH/MR/MMR/
JBIG
These bits determine the compression capabilities
to be used in the transmission and to be declared in
phase B (handshaking) of the T.30 protocol.
(1, 1): Not used in this machine, because it does not
support JBIG.
4-7 Not used Do not change the settings.
Communication Switch 01
No FUNCTION COMMENTS
0 ECM
0: Off 1: On
If this bit is set to 0, ECM is switched off for all
communications.
In addition, V.8 protocol and JBIG compression are
switched off automatically.
JBIG is not used in this machine.
1 Not used Do not change the setting.
2
to
3
Wrong connection prevention
method
Bit 3 Bit 2 Setting
00None
0 1 8 digit CSI
1 0 4 digit CSI
1 1 CSI/RTI
(0,1) - The machine will disconnect the line without
sending a fax message if the last 8 digits of the
received CSI do not match the last 8 digits of the
dialed telephone number. This does not work when
manually dialed.
(1,0) - The same as above, except that only the last
4 digits are compared.
(1,1) - The machine will disconnect the line without
sending a fax message, if the other end does not
identify itself with an RTI or CSI.
(0,0) - Nothing is checked; transmission will always
go ahead.
Note: This function does not work when dialing is
done from the external telephone.
4-5 Not used Do not change the setting.
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