TX
- Tim Sneddon (Unlicensed)
Syntax
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Description
The TX object is used to configure the PBXDA-AB serial boards available to the guest. The value of tx-count must be between 1 and 7. Each TX adapter supplies a total of 8 serial lines to the guest system allowing for a maximum of 56 serial ports. These serial devices can be connected to both physical serial ports and network sockets.
The type member of the TX object indicates what kind of serial port the virtual Alpha is to use. The following table describes the supported values.
| Type | Description |
|---|---|
| device | Connect the virtual serial port to a physical serial device attached to the host system (i.e. COM1). |
| socket | Attach the virtual serial port to a raw TCP/IP listener socket on the host. |
| telnet | Attach the virtual serial port to a telnet TCP/IP listener socket on the host |
The value of the port member depends on the setting of the type member. For the socket and telnet types, port can be set to an unused TCP/IP port number. This port-number must be prefixed with a colon. For the port type of device, the value must be a serial device physically available on the host and the name must be suffixed with a colon.
The command member can be used to start a terminal emulator (or some other software package) as part of the virtual machine start up.
The stop_process member is used to kill the process started by command when the virtual machine powers off. It has a default value of "yes". However, sometimes it is important or unnecessary to kill the process, even after power off in which case stop_process would be set to "no".
In order to use these devices under OpenVMS and Tru64 UNIX it is necessary to install the Digiboard driver. This process is documented, for OpenVMS in the section PBXDA-AB Serial Board Driver.
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