Intermec Trakker Antares 2460, Руководство пользователя

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TRAKKER Antares 246X Stationary Terminal User’s Manual nugget
39
4-6
Identifying the COM Ports
Communications ports, also called COM ports, are locations from which data can be
passed into and out of the terminal. This illustration identifies the COM ports on the
terminals.
2460
COM1
COM2
2461
COM1
246XU.011
NET
This table explains the COM port designations to use when developing client/server
applications for the terminal.
Port COM Port Designation for Applications
COM1 Use for RS-232 serial port communications on the 2460 and 2461.
COM2 Use for RS-232/422/485 serial port communications on the 2460.
NET Use for Ethernet communications on the 2461. The TRAKKER Antares PSK
functions use NET to designate the Ethernet network port.
You can physically connect the 246X to another device (host computer, printer,
controller, or other serial device) by using one of the COM ports. For help connecting
to a serial port, see Chapter 2, “Installing the Terminal.”
Choosing a Communications Protocol
After you connect the 246X terminal to a host computer or other serial device, you are
ready to configure the serial port parameters on the two devices. The terminal uses a
communications protocol and
XMODEM
or
YMODEM
to handle data communications
through the serial ports.
You can configure a different communications protocol for each COM port. The
terminal’s built-in file transfer operations use
XMODEM
or
YMODEM
for file transfer.
Communications protocols determine exactly how data is transmitted between the
terminal and the connected device. Each protocol has parameters you can set, such as
baud rate and parity. Both the terminal and the connected device must use the same
protocol and parameter settings to communicate properly. For help on protocols, see the
Data Communications Reference Manual (Part No. 044737).