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TCP Server Mode Operation Troubleshooting
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Models 2211 & 2232 Getting Started Guide
E • Troubleshooting
TCP Server Mode Operation Troubleshooting
Serial Communication Troubleshooting
Problem
Cause
Action
Cannot connect to the
device server.
IP configuration of remote
host is invalid.
Check if IP configuration of the remote host
is valid.
Host mode of the device
server serial port is not
TCP server.
Change the host mode of the device server serial
port to TCP server or TCP server/client.
IP address of the device
server or TCP port number
is wrong.
Specify valid IP address and TCP port number of
the device server.
DSR option is set but DSR
input is not high.
Disable DSR option or make DSR input of the
device server high.
TCP connection with the
other host is
established already.
Close established TCP connection or
connect later.
Problem
Cause
Action
Serial data are not trans-
ferred by TCP/
IP immediately.
Too large inter-
character timeout.
Set inter-character timeout with smaller value.
Cannot communicate with
the device server.
Invalid wireless or serial
port configuration.
Check if wireless and check to see that the serial
port configuration of the device server are the
same with that of the serial device.
Invalid data transferred.
Invalid serial
port configuration.
Check if serial port configuration is correct.