Communication Switches - Gestetner A193 Service Manual

BIT SWITCHES

2.4 COMMUNICATION SWITCHES

Communication Switch 00
No FUNCTION
0 Compression modes
available in receive mode
1 Bit 1 0 Modes
0 0 MH only
0 1 MH/MR
1 0 MH/MR/MMR
1 1 Not used
2 Compression modes
available in transmit mode
3 Bit 3 2 Modes
0 0 MH only
0 1 MH/MR
1 0 MH/MR/MMR
1 1 Not used
4 Not used
to
6
7 Closed network (reception)
0: Disabled
1: Enabled
Communication Switch 01
No FUNCTION
0 ECM
0: Off 1: On
1 EFC during transmission
0: Off 1: On
2 Wrong connection prevention
method
3 Bit 3 Bit 2 Setting
0 0 None
0 1 8 digit CSI
1 0 4 digit CSI
1 1 CSI/RTI
4 Not used
5
SM
These bits determine the compression capabilities to be
declared in phase B (handshaking) of the T.30 protocol.
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.
Cross reference
EFC compression during transmission: Communication
Switch 01, bit 1.
Do not change the settings.
1: Reception will not go ahead if the ID code of the
other terminal does not match the ID code of this
terminal. This function is only available in NSF/NSS
mode.
If this bit is 0, ECM is switched off for all
communications.
If this bit is 0, EFC is switched off during transmission.
(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.
Do not change the setting.
4-40
COMMENTS
COMMENTS
(A639)