Intermec Janus 2050, Руководство пользователя

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JANUS 2050 Vehicle-Mount Computer User’s Manual (4MB) nubbet nubbet c
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Loading and Unloading Protocol Handlers
There are several ways to load protocol handlers:
• Manually load them from the DOS command line.
• Include them in a batch file that also executes your program.
• Load the protocol handlers whenever you execute the Communications
Manager utility or IRL Desktop.
If you are using an off-the-shelf communications program that directly accesses
the COM port, you can maximize memory by not loading a protocol handler.
You activate No protocol in the JANUS 2050 configuration. You cannot
download JANUS 2050 configuration commands from the host computer when
using off-the-shelf software.
Note: For the protocol handler to be active when it is loaded, its corresponding
communications protocol must be active. For example, if PC Standard protocol is
loaded, it will not become active until the PC Standard protocol is made the active
protocol in the JANUS 2050’s configuration.
Loading/Unloading Protocol Handlers at the DOS Prompt
When you are using communications from the DOS command line, you can
load the protocol handlers from the command line as needed. If you load a
protocol handler from the command line, it is recommended that you unload
the protocol handler when you are finished to maximize memory.
To load a protocol handler, enter this command at the JANUS 2050 DOS prompt
{ protocol handler} {port}
To unload a protocol handler, enter this command at the JANUS 2050 DOS prompt
unload { protocol handler} {port}
where:
protocol handler is the name of the protocol handler you want to load or unload.
For the Intermec protocol handler, enter phimec. For the PC standard protocol
handler, enter phpcstd. For the RF protocol handler, enter rfph.
port indicates the port for which you are loading or unloading the protocol
handler. To load or unload the protocol handler for COM1, enter 1.
For example, to load the Intermec protocol handler on COM1, enter the
following command at the JANUS 2050 DOS prompt:
phimec 1