Difference between revisions of "Glossary"

Revision as of 19:48, 19 December 2005

Class 1: Class 1 fax modems are modems with extensions to their command sets that allow them to act as Group 3 fax machines. Class 1 fax modems leave almost all of the processing to the software. The official standard for Class 1 fax modems is EIA/TIA-578.

Class 1.0: Extension of Class 1.0 that adds V.34 (SuperG3) high-speed fax capability.

Class 2: Class 2 fax modems handle much of the processing previously done by the CPU. It took a very long time for Class 2 to be approved, however, so many fax modems were produced before the standard was official. Thus, Class 2.0 is used for fax modems which apply strictly to the standards, while Class 2 applies to those fax modems that were produced before the standard was official.

Class 2.1: Extension of Class 2.0 that adds V.34 (SuperG3) high-speed fax capability.

@@ Line 1: / Line 1: @@
-; Class 1 : Fax Protocol defined by T.31 standard. Class 1 provides a low-level interface between HylaFAX and the fax modem, where HylaFAX is responsible for issuing modem commands during fax transmission.
+; Class 1 : Class 1 fax modems are modems with extensions to their command sets that allow them to act as Group 3 fax machines. Class 1 fax modems leave almost all of the processing to the software. The official standard for Class 1 fax modems is EIA/TIA-578.
 ; Class 1.0 : Extension of Class 1.0 that adds V.34 (SuperG3) high-speed fax capability.
-; Class 2 : Implementation of Class 2 by Rockwell. Offical spec for class 2, as defined by T.32 standard, is known as Class 2.0.
+; Class 2 : Class 2 fax modems handle much of the processing previously done by the CPU. It took a very long time for Class 2 to be approved, however, so many fax modems were produced before the standard was official. Thus, Class 2.0 is used for fax modems which apply strictly to the standards, while Class 2 applies to those fax modems that were produced before the standard was official.
-; Class 2.0 : Offical spec for class 2 faxing as defined in T.32. With class 2 faxing the fax modem controls the sending or reception of the document. This is in contrast to class 1 where HylaFAX has direct control over the transmission. As class 2 faxing relies heavily upon the fax modem your performance will vary greatly based on the modem manufacturer.
 ; Class 2.1 : Extension of Class 2.0 that adds V.34 (SuperG3) high-speed fax capability.

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Difference between revisions of "Glossary"

Revision as of 19:48, 19 December 2005