Nextel comm IR1200 manual Modem

iR1200 Modem

Symptom	Troubleshooting Tips
	modem.
	• The cable is connected to the correct
	port.
	• The correct port is specified in your
	communication software.
	• The modem is set to the same baud
	rate specified in the communication
	software.
The NO CARRIER	Make sure that the S7 register contains a
message displays	value greater than or equal to 60 by issuing
when the modem	an AT&V command or by explicitly
attempts data calls.	setting ATS7=’x’ (where x is, enter any
	number between 1 and 255).
Modem does not auto-	Make sure that the S0 register contains a
answer incoming data	value other than 0 (zero) by issuing the
calls (not default	AT&V command. You can also explicitly
operation).	set ATS0=x from the software’s command
	mode (where x is any number between 1
	and 255).
Received data is	Make sure that the flow control is set to
unrecognizable.	RTS/CTS (hardware flow control is
	enabled) in the communication software
	and is set to &K3.
Data is being	Make sure that the flow control is set to
intermittently lost.	RTS/CTS (hardware flow control is
	enabled) in the communication software
	and is set to &K3.
Modem seems to	Check the signal strength icon to be sure
respond slower than	the signal is not weak.
usual.
92	nextel.com