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COMSPHERE 3900 Series Modems
Break Buffr Ctl: Keep_Data
Nxt Keep_Data Discard_Data
This configuration option is only available if Async/Sync Mode is configured for Async, and Error
Control Mode is not configured for DirectMode.
Break Buffer Control. Determines if data stored in the modem's buffer is saved or discarded when the DTE
issues a break sequence.
H Keep Data (Nondestructive mode)
Saves the data in the buffer in both the local and remote modems.
H Discard Data (Destructive mode)
Empties the data buffer. Only buffers in the same direction of travel as the break are discarded.
NOTE: This configuration option is ignored if the Break Forces Escape configuration option (refer to the DTE
Dialer configuration options group) is enabled.
The AT commands for Discard Data are \K0 and \K1.
The AT commands for Keep Data are \K2, \K3, \K4, and \K5.
Send Break Cntl: Data_First
End Data_First Break_First
This configuration option is only available if Async/Sync Mode is configured for Async, and Error
Control Mode is not configured for DirectMode.
Send Break Control. Determines what is sent from the modem first, data or break if a break sequence is
sent from the DTE.
H Data First (Nonexpedited)
A break is treated as a data character and is sent in the order it was received. This is also known as
Nonexpedited mode.
H Break First (Expedited)
A break is sent before the data currently in the buffer. This is also known as Expedited mode.
NOTE: This configuration option is ignored if the Break Forces Escape configuration option (refer to the DTE
Dialer configuration options group) is enabled.
The AT commands for Break First are \K0, \K1, \K2, and \K3.
The AT commands for Data First are \K4 and \K5.
5-44
Table 5-6
(6 of 7)
V.42/MNP/Buffer Configuration Options
September 1998
3910-A2-GN32-40
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