Datacom Systems D56 - Manual (Page 8)

8
4. FRONT PANEL INDICATORS
4.1 Indicators
Indicator Condition Meaning
Power ON Power is supplied to the modem
TxD Flickering Modem is sending data to the far end
RxD Flickering Modem is receiving data from the far end
DTR ON DTR is asserted by the attached DTE device
DCD ON Modem carrier is asserted