Lancom 1751 UMTS Manual page 20

110584_LC-1751-UMTS-MANUAL-EN.book Page 20 Tuesday, February 26, 2008 5:16 PM
LANCOM 1751 UMTS
Chapter 2: Installation
Information on data traffic at the ADSL connector:
ADSL data
Off
Green
Green
Green
Green
ISDN status Information on connection status at the ISDN S
Off
Green
Green
Red
Red

ISDN Data Status display for both ISDN B channels:
off
green
green
green
green
green
20
No logical connection
Blinking Opening the first connection
Inverse flashing Opening an additional connection
Permanently At least one logical connection is established
Inverse flickering Data traffic (send or receive)
Not connected or no S
Blinking D-channel initialization (establishing contact to provider)
On (perma- D-channel operational
nently)
Flickering D-channel error
On (perma- D-channel activation failed
nently)
If the ISDN status LED goes off automatically, this does not indicate
an error at the S bus. It is in fact because several ISDN connections
0
and PBXs switch the S bus into power-saving mode after a certain
0
period of inactivity. When needed, the S
tes and the ISDN status LED illuminates in green.
No connection established
Blinking Dialling
Flashing Establishing first connection
Inverse flashing Establishing further connection
Constantly on Connection established via B channel
Flickering Data traffic (send or receive)
connector:
0
voltage (no error message)
0
bus automatically reactiva-
0