Technical specifications
XFAX - User’s Guide 4.3a
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17. Technical specifications
XFAX is fax software for sending Group 3 faxes with the aid of Class 2-compat-
ible fax modems. The maximum speed for sending faxes is 14.400 bps, however
9.600 bps is the most common. This depends on the other fax unit. The speed of
computer to modem is 19.200 bps.
17.1 Modem drivers
Class 2 (proposed TIA/EIA 592) and Class 2.0 (TIA/EIA 592)
17.2 File formats
ASCII, HP Laserjet (PCL-4), Modified Huffman. Files are usually stored in
Modified Huffman format since this is a very efficient way of compressing this
type of data.
17.3 Memory required
This depends to some extent on the operative system, but the whole system occu-
pies between 2 Mb of memory after installation. When using the system the fol-
lowing is added: One fax file with a normal page of data (A4) needs between 20
and 80 kb.
17.4 Tested platforms
AIX 3.2.5
AIX 4.1
AIX 4.2
AIX 4.3
HP-UX 9.x
HP-UX 10.x
HP-UX 11.x
Linux (Redhat)
SCO OpenServer 5
SCO UNIX
SCO UnixWare 2.1
SCO UnixWare 7
SINIX
Solaris 2.x (Intel and Sparc)
17.5 Modems tested
The following modems have been tested with XFAX and functioned satisfacto-
rily. However, for the best functioning we recommend the ZyXEL modem that
has been shown to be the most stable with respect to fax functionality.
Intertex, various models
Multitech, various models