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132 ¦ Glossary · Fax Groups
EN
Fax Groups
Fax machines are classified in terms of internationally standardised fax groups based on
their transfer type and speed. Connections between two devices of different groups is possi-
ble; the lowest common transfer rate is selected. The determination of the speed takes place
during the handshake (see Handshake). Fax groups 1 to 3 are analogue fax machines. Now-
adays, groups 1 and 2 are hardly to be found any longer; fax machines of group 3—which
have a transfer speed that ranges from 9,600 to 33,600¦bps—are currently most standard.
Group 4 fax machines are digital devices that function exclusively on ISDN systems. They
have a maximum transfer speed of 64,000¦bps.
Fax Polling
With active fax polling, one can retrieve a document from another fax machine. For fax poll-
ing from a larger company offering several polling services, you can also enter sub-addresses
/ direct-dial numbers. In order to do this, you must insert a dialling pause between the fax
number and the sub-address (see Dialling Pause).
Fax Signal, CNG Tone (= Calling Signal)
The tone that a fax machine sends out to announce a fax transmission. When the CNG tone
occurs, the fax switch of the device recognises an incoming fax call and starts the fax recep-
tion.
Fax Switch
The fax switch checks incoming telephone calls and controls the ringing behaviour of the fax
machine. According to the selected mode, fax transmissions will be received either automat-
ically or manually.
Flash Key (R-key)
With the flash key, you can make use of additional telephone services if these special func-
tions are enabled for your telephone line. The R key has replaced the hook-flash function. (see
Call Waiting, Call-toggling).
Handshake
The handshake is the initial and final phase of a fax transmission. After establishing of the
connection, fax machines check the group affiliation and features such as size compression
or grey tones. After the fax transmission has been completed and before the connection is
terminated, the receiving device confirms receipt of the transmission (see Fax Groups).
Hook-Flash Function
See Flash Key
ISDN
Integrated Services Digital Network
Содержание LF8140.8145
Страница 1: ...Xerox Office Fax LF8140 8145 User Manual ...
Страница 10: ...10 Table of Contents EN ...
Страница 20: ...20 Overview Panel with Display EN LPF 5120 5125 5140 5145 Spaltenumbruch ...
Страница 38: ...38 Telephone Functions Missed Calls EN ...
Страница 46: ...46 Telephone Book of the Device Exporting Importing the Telephone Book EN ...
Страница 66: ...66 Fax Jobs EN ...
Страница 74: ...74 Copier Configure Settings for Second Profile EN ...
Страница 96: ...96 Settings Print Lists and Reports EN ...
Страница 128: ...128 Service Error Messages and Possible Causes EN ...
Страница 136: ...136 Glossary Warm Up Phase EN ...
Страница 146: ...146 Appendix RoHS and WEEE Compliance EN ...
Страница 147: ...Appendix RoHS and WEEE Compliance 147 EN ...