Specifications

Configuring the SCbus Ports

You configure the 32 SC ports as station ports or disabled ports.

1. Start the VMMI programming application.

Go to the Board Configuration/Board Programming/SC Bus Ports location.

3. From the open SC Bus Port dialog window, click the SCbus board that you need to configure.

4. From the dialog window for the selected board, select the Port Type. At present, the only choices are

Station or None.

Select the OAI Link by clicking on the box to expand the menu. At present, the choices are None and 1

through 10. The OAI Link allows you to specify an optional default link for personal computer applications

that use preconfigured ports.

Configuring the SCbus Time Slots

The Impact FXS' SCbus interface board is compatible with the Dialogic standards for SCbus technology. The

Comdial Enterprise Toolkit provides two utilities that allow the Impact FXS system to comply with the Dialogic

standards.

•

FXTSREQ.EXE—this utility determines the number of SCbus transmit time slots needed by an Impact FXS

system. Each installed SCbus interface board requires 32 transmit SCbus time slots.

•

FXTSMAP.EXE—this utility assigns 32 SCbus transmit time slots to each installed SCbus interface board.

These two utilities are part of the Enterprise ToolKit developer software. You must copy them from their source

location to the BIN directory of the Dialogic system software (for example: C:\DLGCDEV\DIALOGIC\BIN if

you installed the Dialogic system software in C:\DLGCDEV).

CAUTION

You must run the FXTSREQ.EXE utility before you start the Dialogic service. Refer to the Dialogic

documentation for start and stop details. The Dialogic system software calls the FXTSMAP.EXE utility

software when it needs to do so. Never run FXTSMAP.EXE manually. It’s the Dialogic system

software’s responsibility to call FXTSMAP.EXE with the proper arguments.

Currently, the utility is not a Windows* NT* service; therefore, you must start the Dialogic service

manually rather that automatically. This requirement is so that the FXTSREQ.EXE utility can run

before you start the Dialogic service software. After the utility becomes Windows NT compliant, the

only requirement will be that the utility runs to completion before the Dialogic system software starts.

*Windows and Windows NT are registered trademarks of Microsoft Corp., Redmond WA.

IMI89–313 Installing the SCbus Interface Board

Charlottesville, Virginia 22901-2829

World Wide Web: http://www.comdial.com/