MT3334HD8 User Guide

When two modems are connected in non-error correction mode, XON/XOFF flow control can be used as a complement to XON/ XOFF pacing.

&E10 disables non-error correction mode flow control.

&E11 enables non-error correction mode flow control.

&En Pacing (Computer-Initiated Flow Control)

n = 12 or 13 Default: &E13

Pacing is the means by which the DTE (data terminal equipment—your computer or terminal) regulates the stream of incoming data. It is only enabled when the modem has some form of flow control active, such as RTS/CTS or XON/XOFF. When pacing is enabled, the modem responds to the DTE’s pacing signals. When pacing is disabled, the modem ignores any pacing signals from the DTE.

&E12 disables pacing.

&E13 enables pacing.

#Xn Number of XOFF Characters Sent

n = 0 or 1 Default: #X0

The #X command allows the modem to send either a single or multiple XOFF characters when the modem’s buffer becomes full. When the buffer is full, the next character received causes an XOFF charac- ter to be sent. In default mode, only one character is sent until the buffer reaches the XON level; however, it is also possible to send one XOFF character for every character received after the buffer is full.

#X0 causes only a single XOFF character to be sent after the buffer is full.

#X1 causes one XOFF character to be sent for every character received after the buffer is full.

38

CommPlete Communications Server

Page 44
Image 44
Multi-Tech Systems MT3334HD8 manual En Pacing Computer-Initiated Flow Control, #Xn Number of Xoff Characters Sent