Digital Equipment RapidPrint 500, Справочное руководство

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LAT Host Setup Printing to an Application Port
8 - 1
8 - LAT Host Setup
LAT print queues can print directly to a port or print to a service. Printing directly to a port
requires no RapidPrint 500 configuration and is the recommended configuration. Note that the
LAT characteristic must be enabled on any service being used.
Refer to your LATCP documentation as you read the following sections. Note that you need sys-
tem privileges to create and change LAT ports.
8.1 Printing to an Application Port
Most VMS applications that can utilize the RapidPrint 500 will require the setup of a LAT applica-
tion port
. This is a device that allows programs to treat a LAT connection as a physical port for
input and output. For example, a printer might be configured to use port LTA3419, which might
be connected, or mapped, to port 1 on the RapidPrint 500. The LAT port can be mapped to either a
service or a specific port on the RapidPrint 500.
To configure LAT on your VMS host machine so that users can connect to a remote port, use the
LATCP program to create a new, unique port, then set it to the appropriate node and port name.
Enter the following commands at the VMS system prompt:
Figure 8-1: Creating a LAT Application Port
In the example above, nodename and port_1 are the names of the print server and port name,
respectively. The nnnn designation is any unused LAT port number; use the Show Ports command
to see which port numbers are in use. Once the port has been created, VMS users can use port
LTAnnnn to connect to the RapidPrint 500. When the port is used as the target of an application,
such as a print queue, a LAT connection with the service will be attempted.
LATCP ports are not permanently configured. To create the required LAT devices after each host
reboot, add the necessary commands to the SYS$MANAGER:LAT$SYSTARTUP.COM file.
To create and start a LAT queue using a LAT application port, enter the following command.
Figure 8-2: Creating and Starting the Queue
A print request would then look like this:
Figure 8-3: Print Request
$ RUN SYS$SYSTEM:LATCP
LCP> CREATE PORT LTA nnnn/APPLICATION
LCP> SET PORT LTA nnnn/node=nodename/port=port_1
LCP> SHOW PORT LTA nnnn
LCP> EXIT
$ INITIALIZE/QUEUE/START/ON=LTA nnnn:/PROCESSOR=LATSYM/RETAIN=ERROR queue_name
$ PRINT/QUEUE= queue_name filename.txt