### Backtalk Interface

The Backtalk interface is used with Brown & Sharpe manual machines with a Man 3 (External Serial Interface). If your machine has a light pen, you will need to alter the controller settings under the MM2 Control in the Settings Editor. For information on modifying registry entries, please view the "Modifying Registry Entries" section.

A monitor needs to be hooked to your controller to configure your Backtalk controller. Before starting PC-DMIS, rename the backtalk.dll to interfac.dll.

Note: If the customer has a Man3 box and is using the Z rail mouse, a light pen is needed to disable the Z rail mouse.

The Machine Option dialog box has four tabs for the Backtalk interface:

Controller tab

See the "Setting the Communication Protocol" topic. Default value is Comm Port 1, 4800 Baud, Even parity, 7 data bits, and 1 stop bit.

Axis tab

See the "Assigning the Machine Axes" topic.

Resolution tab

See the "Setting the Axes Scale Factor" topic. Default is X=1.0, Y=1.0, Z=1.0.

Debug tab

See the "Generating a Debug File" topic.

Note: Additional information for this interface is provided in the Machine Interface Installation Manual (MIIM).