Appendix A: Modem LEDs
LED Description
TxD
Blinks when modem is transmitting data over the RS232
port.
RxD
Blinks when modem is receiving data over the RS232
port.
Pwr
On when power supplied to modem
Cell
On
Modem is connected by a dial-up
connection
Blinking
once
Modem is registered to the network
Blinking
Twice
No service available or modem is not
registered to network
Off
Modem is not trying to register to network
.
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