Sharp FO-5700, Service Manual, Page: 32 / 140

FO-5700U
2 – 28
SW5 No. 8 CSI transmission
CSI signal contains the sender’s phone number registered in the ma-
chine. If this switch is set to "1", no sender’s name will be printed at the
receiving side.
SW6 No. 1 JBIG (Joint Bi-level Image Group)
An image compression encoding method recommended by ITU-T.
It realizes 2-second transmission when the power is turned on.
SW6 No. 2 JBIG option
An optional function for JBIG.
SW6 No. 3 MMR
MMR (Modified MR) selects presence of the compression function.
SW6 No. 4 MR
MR (Modified READ) selects presence of the compression function.
SW6 No. 5 ~ No. 8 Modem speed
Used to determine the initial modem speed. The default is
14400BPS(V.17). It may be necessary to program it to a slower speed
when frequent line fallback is encountered, in order to save the time
required for the fallback procedure.
SW7 No. 1, No. 2 Reception speed fixed
The transferable speed of modem in the receiving mode is set.
SW7 No. 3 DIS receive acknowledge during G3 transmission
Used to make a choice of whether reception of NSF (DIS) is acknowl-
edged after receiving two NSFs (DISs) or receiving one NSF (two DISs).
It may be useful for overseas communication to avoid an echo sup-
pression problem, if set to 1.
SW7 No. 4 Non-modulated carrier in V.29 transmission mode
Though transmission of a non-modulated carrier is not required for trans-
mission by the V29 modem according to the CCITT Recommendation, it
may be permitted to send a non-modulated carrier before the image
signal to avoid an echo suppression problem.
It may be useful for overseas communication to avoid an echo sup-
pression problem, if set to 1.
SW7 No. 5 CNG send in manual transmission
CNG signal sending ON/OFF in case of manual transmission is set.
SW7 No. 6 Protocol monitor
Normally set to "0". If set to "1", communication can be checked, in case
of troubles, without using a G3 tester or other tools.
When communication FSK data transmission or reception is made, the
data is taken into buffer. When communication is finished, the data
analyzed and printed out. When data is received with the line monitor
(SW7-No. 7) set to "1" the reception level is also printed out.
SW7 No. 7 Line monitor
Normally set to "0". If set to "1", the transmission speed and the recep-
tion level are displayed on the LCD. Used for line tests.
SW7 No. 8 Max. length for TX/RX/Copy
Used to set the maximum page length.
To avoid possible paper jam, the page length is normally limited to 432
mm for copy or transmit, and 1.5 meters for receive.
It is possible to set it to "No limit" to transmit/receive a long document,
such as a computer print form, etc. (In this case, the receiver/transmit-
ter must also be set to no limit.)
SW8 No. 1, No. 2 Compromised equalizer
The specific line equalizer is inserted.
No. 1 No. 2
0 0 The line equalizer built in the modem is turned off.
0 1 Line equalizer corresponding to 1.8 km
1 0 Line equalizer corresponding to 3.6 km
0 1 Line equalizer corresponding to 7.2 km
SW8 No. 3 H2 mode
Used to determine H2 mode (15sec transmission mode). When set to
OFF, H2 mode is inhibited even though the transmitting machine has H2
mode.
SW8 No. 4 ~ No. 8 Signal transmission level
Used to control the signal transmission level in the range of –0dB to
–31dB.
SW9 No. 1, No. 2 CED tone signal interval
For international communication, the 2100Hz CED tone may act as an
echo suppresser switch, causing a communication problem. Though this
soft switch is normally set to "0", it should be set to "1" so as to change
the time between CED tone and DIS signal from 75ms to 500ms to elimi-
nate the communication problem caused by echo.
SW9 No. 3 Equalization freeze
This switch is used to perform reception operation by fixing the equal-
izer control of modem for the line which is always in an unfavorable state
and picture cannot be received. Usually, the control is executed accord-
ing to the state of line where the equalizer setting is changed always.
SW9 No. 4 Equalization freeze conditions
Setting which specifies SW9 No.3 control only in condition of 7200bps
modem speed.
SW9 No. 5 CED detection time
The detection time of the CED signal from the called side in the auto
calling mode is set.
SW9 No. 6, No. 7 Alarm buzzer
The length of the buzzer for normal end of operation is set.
SW9 No. 8 Action when RTN received
The operation is set when the RTN signal is received in the G3 transmis-
sion mode.
SW10 No. 1 ~ No. 4 Memory retransmission times
The number of memory retransmissions is set.
SW10 No. 5 ~ No. 8 Memory retransmission interval
The interval between memory retransmissions is set.
SW11 No. 1 ~ No. 3 Reserved
Set to "1".
SW11 No. 4 Reserved
Set to "0".
SW11 No. 5 ~ No. 7 Reserved
Set to "1".
SW11 No. 8 Reserved
Set to "0".
SW12 No. 1, No. 2 Reserved
Set to "1".
SW12 No. 3 Reserved
Set to "0".
SW12 No. 4, No. 5 EOL detection timer
Used to make a choice of whether to use the 25-second or 13-second
timer for detection of End of line This is effective to override communica-
tion failures with some facsimile models that have longer End of line
detection.