Westermo IDW-90 AT - Manual (Page 3)

3 6620-3200
1.1 LED Indicators
LED Function Description
L1 ISDN Line status LED normally showing the status of the ISDN S 0 interface.
L1 together with L2 is also used to indicate error conditions
in the IDW-90 and the connection to the ISDN S0 interface.
L2 ISDN Data connection LED Normally showing the state of the data connection
ANL Analogue line OFF = No analogue connection established
BLINK = Analogue call in progress
ON = Analogue line established
TD Transmit Data LED showing data from the DTE, the LED will blink when
data received
RD Receive Data LED showing data transmitted to the DTE, the LED will blink
when data transmitted
RTS Request to Send LED showing the status of the handshake line RTS from DTE,
LED is ON when DTE requests to send data
DCD Data Carrier Detect LED showing the status of the handshake line DCD from
IDW-90, The behaviour of the DCD-line is programmable,
see configuration command cdcd
DTR Data Terminal Ready LED showing the status of the handshake line DTR
L1 L2 Status
ON 5 blink/s Start up phase
ON OFF S0 connection OK
ON 1 short blink/s Call setup in progress
ON 1 long blink/s Waiting for B channel synchronization
ON ON Data connection is established
OFF OFF No power or Hardware error
0.5 sec ON OFF Faulty or no S0 connection
0.5 sec OFF
OFF
2 blink/s IDW-90 internal RAM error
OFF 0.5 sec ON IDW-90 internal ROM error
0.5 sec OFF