Paradyne 3800 manual Fax Operation, Overview

Fax Operation 13

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1 Fax Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1

Overview

The procedures for sending and receiving facsimile documents with your modem depend on the fax software you use. This chapter does not contain specific procedures, but rather information that may make it easier for you to use the documentation that came with your fax software.

The fax feature is not available if the V.29 or V.33 leased line option is installed.

Fax Operation

With the fax option installed, your modem, in combination with your computer and fax software, is capable of emulating the functions of a fax machine. You can use it to send and receive fax files in communication with another fax modem, or with a standard fax machine. These fax files are images turned into the sort of data that can be stored in your computer.

Fax machines and fax modems use special protocols different from those used by standard modems. The device you intend to communicate with must be compatible with your modem, which means that it must be capable of using the same protocol. Your 3800 Series modem supports the Class 2 (EIA/TIA SP-2388)

Group III fax, using V.17, V.29, or V.27ter modulations.

Before you can send or receive a fax, the following must be true:

•Your modem’s firmware must support the fax option.

•You must have fax software installed on your computer.

•Your fax software must support Class 2 fax.

•Your modem must be online with a compatible fax modem or fax machine.

•You must have configured your modem according to the specifications of your fax software manual. For example:

—Some fax software requires that the modem have Auto-Answer disabled. You can set this using the AutoAnswerRing# configuration option under the Line Dialer branch, or by issuing the ATS0=0 command.

—Some fax software requires that the modem use software flow control. You can set this using the FlwCntlofDTE and FlwCntlofMdm configuration options under the V.42/MNP/Buffer branch, or by issuing an

AT \Q1 command.

—DTR Action should be set for standard RS232-D operation. Use the Stndrd_RS232 setting of DTR Action (in the DTE Interface configuration options group), or the AT&D2 command.

—LSD (Line Signal Detect) Control should be set for standard RS232-D operation. Use the Stndrd_RS232 setting of LSD Control (in the DTE Interface configuration options group), or the AT&C1 command.

—Data should be buffered during Error Control (EC) negotiation. Use the Enable setting of EC Negotiate Bufr (in the V.42/MNP/Buffer configuration options group), or the AT \C1 command.

3810-A2-GB30-30 September 1998 13-1