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Chapter 2
Installation
1. Select a convenient location for the Line Busy Module between the Cubix processor and the modem.
2. Connect a "Modem" cable between the processor's communications (COM) port and the "Computer" DB25 on the Line Busy Module.
3. Connect the supplied DB25S to DB25P cable from the "Modem" DB25 connector on the Line Busy Module to the RS232 DB25 connector on the modem.
4. Connect the PBX modular telephone cable to the "PBX" RJ11 jack on the Line Busy Module.
5. Connect the supplied modular telephone cable from the "Modem" RJ11 jack on the Line Busy Module to the modem's RJ11 jack. The Line Busy Module requires no external power for operation.
Figure 2-1, Installation Block Diagram
Power on the Cubix processor but do not run any application software that initializes the communications port. With the COM port not initialized (DTR false), the telephone line should appear busy to an incoming call and the PBX should skip over this extension. After the communications software is executed and the DTR signal is asserted true, the PBX should be able to ring the extension to which the Line Busy Module is attached.
* If the communication application is automatically loaded at boot time (i.e. in the AUTOEXEC.BAT file), verify the Line Busy Module by resetting the processor and attempting to dial into the processor before it executes the application.
Two cables are provided with the Cubix Line Busy Module.
Line Busy RJ11 Cable
This cable connects the Line Busy Module's "Modem" RJ11 modular jack to the RJ11 jack on the modem.
Figure 2-2, Line Busy RJ11 Cable
Line Busy DB25 Cable
This cable connects the Line Busy Module's "Modem" DB25 connector to the RS232 DB25 connector on the modem. Figure 2-3, Line Busy DB-25 Cable
This document, and all Web contents, Copyright © 1997
by Cubix Corp., Carson City, NV, USA.
