COMSPHERE 3800Plus Modems

DTE Dialer

The DTE Dialer configuration options establish the DTE-to-modem protocol for call establishment and control.

Table 8-2 shows each DTE Dialer configuration option as it appears on the LCD, with the Async Dial factory default setting (the default value if the modem is just being installed) shown following the colon (:) on the first line and with all available selections listed on the second line. Following this is a description of the configuration option, a description of the available selections, and any equivalent AT commands.

Table 8-2

(1 of 5)

DTE Dialer Configuration Options

DTE Dialer Type: AT

Nxt AT Disable V25bis_Async V25bis_Bsync V25bis_HDLC DTR=Dirs AT&T_Exclusv

Data Terminal Equipment Dialer Type. Identifies to the modem the type of dialing method and protocol used by the DTE.

AT ± Allows AT command protocol to be used as a method for entering commands and dialing when used in an asynchronous application.

NOTE: The modem will not respond to AT commands if DTE Dialer Type is not set for AT.

Disable ± Disables any type of DTE dialing method. Dialing can only be performed using the DCP's Dial command or attached telephone.

V.25bis Async ± Selects V.25bis Async as the dialing method and protocol used by the modem. The character length must be 7 data bits with even parity and 1 stop bit.

V.25bis Bisync ± Selects V.25bis Bisync as the dialing method and protocol used by the modem. This is also known as character-oriented protocol. This framing protocol uses two synchronous control characters and a start-of-text control character before the text block and an end-of-text control character after the text block. The character length must be 7 data bits with odd parity and 1 stop bit.

V.25bis HDLC ± Selects V.25bis HDLC as the dialing method and protocol used by the modem. This is also known as bit-oriented protocol. This framing protocol uses flag, address and control characters before the text block and a frame sequence check and flag after the text block.

DTR=Dirs ± Allows the modem to automatically dial the number stored in directory location 1 whenever DTR turns ON.

NOTE: DTR dialing should not be used if dial access security is enabled.

AT&T Exclusive ± Enables a subset of the proprietary AT&T command set, which is required for some applications that use AT&T equipment. Currently, the only application supported is AT&T DATAKIT t.

For Async Dial and UNIX Dial, AT is the factory default.

For Sync Dial and Sync Leased, Disable is the factory default.

AT command equivalent is &Mn and &Qn.

8-14

November 1996

3980-A2-GB30-20

Page 68 Page 70
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Paradyne 3800PLUS manual DTE Dialer Configuration Options
Page 68 Page 70

3800PLUS specifications

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