Problems Transmitting Data Through The Serial Port - Intermec TRAKKER Antares 2420 User Manual

T2425 Will Not Communicate With RF Network Devices (continued)
Problem
When you turn on the terminal after it was
suspended for awhile (10-15 minutes or
longer), the terminal can no longer send or
receive messages over the network.

Problems Transmitting Data Through the Serial Port

If you are having problems sending or receiving data through the serial port on the
terminal, check these possible problems:
•
•
•
•
•
•
For help connecting and configuring the serial port, see "Using Serial Communications
on the Terminals" in Chapter 4.
Nugget
Solution
The host may have deactivated or lost your current terminal emulation
session. In a TCP/IP direct connect network, you need to turn off the
"Keep Alive" message (if possible) from the host so that the TCP
session is maintained while a terminal is suspended.
Make sure the terminal is connected to the host computer or serial device through the
TRAKKER Antares TD2400 Communications Dock, the TRAKKER Antares
Optical Link Adapter, the TRAKKER Antares 242X serial interface module, or the
modem.
Make sure you are using a null-modem RS-232 cable to connect the communications
dock, optical link adapter, or the serial interface module to the host or serial device.
Make sure you are using an RJ11 cable to connect the T2420 modem to the phone
jack.
Make sure an external power supply is connected to the communications dock and
there is power to the electrical outlet.
Make sure an external power supply is connected to the optical link adapter or that
you have a charged battery pack installed in the terminal.
Make sure the terminal's serial port parameters are configured to match the serial
port configuration on the host computer or serial device. For example, make sure the
baud rate is the same.
C o d e 39
Troubleshooting
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