Digicom 3910, 3911 operation manual XON/XOFF Psthru Disable Nxt Disable Enable

DCP Configuration

Table 5-6

(5 of 7)

V.42/MNP/Buffer Configuration Options

XON/XOFF Psthru: Disable

Nxt Disable Enable

This configuration option is only available if Async/Sync Mode is configured for Async, and Flow Control of Modem is configured for XON/XOFF.

XON/XOFF Passthrough. Considers an XON/XOFF character as data and passes it on to the remote modem. In this case, the DTE at one end of the communications link can send flow control characters to the other DTE. This is also known as DTE to DTE flow control.

HDisable

Flow control characters are processed but are not passed on to the remote modem.

HEnable

Flow control characters are processed and passed on to the remote modem.

The AT command for Disable is \X0.

The AT command for Enable is \X1.

Mdm/Mdm FlowCtl: Disable

Nxt Disable Enable

This configuration option is only available if Async/Sync Mode is configured for Async, and Error Control Mode is configured for V42/MNPorBfr, MNP_or_Buffr, LAPM_or_Bufr, or BufferMode.

Modem-to-Modem Flow Control. If a modem’s buffers begin to fill due to data it is receiving from the remote modem, but is not passing on to the DTE, it can issue XON/XOFF flow control characters to the remote modem. This only applies if Buffer (nonerror control) mode is selected. If Error Control mode is enabled, flow control between the modems will happen automatically, regardless of the setting of this option.

HDisable

Modem does not respond to XON and XOFF characters received over the VF line. Also, the modem will not transmit an XOFF character to the remote end if its receive buffers are full.

HEnable

Modem stops transmitting data to the remote modem if it receives an XOFF character over the VF line. An XON character will enable data transmission. Also, the modem will transmit an XOFF character to the remote end if its receive buffers are full. Select this setting if the DTE rate is less than the VF line rate or if the DTE must frequently stop the flow of data to process it.

The AT Command for Disable is \G0.

The AT Command for Enable is \G1.

3910-A2-GN32-40 September 1998 5-43