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Appendix
Appendix C
ISDN G4 Board
The ISDN G4 Board is an optional package that enables the Konica FAX9840 to
function as a digital facsimile machine conforming to Group 4 ITU-T recommenda-
tions. It is equipped with an automatic fallback feature that enables the machine to
communicate in G3 mode when its G4 signal is rejected or a G3 signal is received.
Main Specifications
G3 mode
Network compatibility
ISDN, Circuit switch mode (PSTN not available when activated)
Network interface
ITU-TI.430, ETS 300 012 Basic rate interface (2B+D),
S/T interface, RJ45
Compatibility
ITU-T G3(auto-fallback G4 --› G3)
Transmission speed (max.)
33.6kbps
Coding scheme
MH, MR, MMR
Resolution
8 dots
×
3.85lines/mm
8 dots
×
7.7lines/mm
8 dots
×
15.4lines/mm
300
×
300 dots/inch
Transmission time
2.5sec
(ITU-T No.1 chart,33.6kbps, 8 dots
×
3.85lines/mm)
Error correction
ECM, page retransmission, with redial
CODEC
ITU-T G.711(auto-select by country code)
Network service Calling line ID (CLIP)
Yes
Sub-addressing (SUB)
Yes
Multi-Subscriber No. (MSN)
Yes
Options
PC FAX (Bi-Centro I/F)
TIA/EIA Class 1(14,400kbps max.)
G4 mode
Network compatibility
ISDN, Circuit switch mode (PSTN not available when activated)
Network interface
ITU-TI.430, ETS 300 012 Basic rate interface (2B+D),
S/T interface, RJ45
Compatibility
ITU-T G4 Class 1
Transmission speed (max.)
64kbps
Coding scheme
MMR
Resolution
200
×
100 dots/inch
200
×
200 dots/inch
300
×
300 dots/inch
600
×
600 dots/inch *
Transmission time
1.5sec
(ITU-T No.1 chart, 64kbps, MMR, 200
×
100 dots/inch)
Error correction
LAPB
CODEC
-
Network service Calling line ID (CLIP)
Yes
Sub-addressing (SUB)
Yes
Multi-Subscriber No. (MSN)
Yes
Options
PC FAX (Bi-Centro I/F)
-
*This feature requires installation of the optional 8MB memory.
Summary of Contents for FAX 9840
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