Service manual

Bit Switches
SM Appendix 5-47 D127/D128
Appendix:
Fax Trouble-
Shooting
Guide
G3 Switch 01 [SP No. 1-105-002]
No FUNCTION COMMENTS
0-3 Not used Do not change the settings.
4
DIS frame length limitation
0: OFF 1: 4 bytes
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).
5 Not used Do not change the setting.
6
Forbid CED/AMsam output
0: Off
1: On (Forbid output)
Do not change this setting (Default: 0: Off), unless
communication problem is caused by a CED or
ANSam transmission.
7 Not used Do not change the setting.
G3 Switch 02 [SP No. 1-105-003]
No FUNCTION COMMENTS
0
G3 protocol mode used
0: Standard and non-standard
1: Standard only
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)
1-6 Not used Do not change the settings.
7
Short preamble
0: Disabled 1: Enabled
Refer to Appendix B in the Group 3 Facsimile
Manual for details about Short Preamble.