The&C6 command is not properly suppressing the connect message while authenticating the callback security password. This command was implemented for Linux applications.

Firmware version 1.702E or greater fixes this problem. The firmware can be downloaded from our Web site at:


http://www.multitech.com/en_US/SUPPORT/Families/MultiModemII/firmware


Command:&Cn Data Carrier Detect (DCD) Control

Values: n = 0 or 1 (for MT5656ZDX, MT5600BA/BL). 0,1, 2, 3, 4, 5, 6 (MT5600BA/BL)

Default: 1, 3, 4

Description:

&C0 :
Turns off reset on loss of carrier (all models).

&C1:
A second way to turn off reset on loss of carrier (all models).

&C2 :
DCD goes high 500ms after CONNECT message is generated (MT5600BA only).

&C3 :
DCD goes high when the CONNECT message is generated (MT5600BA only).

&C4:
Disables&C5 and&C6 command (MT5600BA only).

&C5 UNIX:
Holds DCD low until proper callback security password is entered or until a disconnect occurs. This prevents the UNIX login prompt from being displayed before the callback security ENTER PASSWORD prompt appears (MT5600BA only).

&C6 Linux:
Wait to display the connect message until the proper callback security password is entered (MT5600BA only).