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LANCOM 821 ADSL/ISDN – LANCOM 1621 ADSL/ISDN – LANCOM 1711 VPN
Chapter 2: Installation
ISDN status
Status of ISDN S
off
green
green
red
red
ISDN Chan 1
(Separate) status display for both ISDN B channels:
ISDN Chan 2
(only LANCOM 821
off
ADSL/ISDN and
LANCOM 1621
green
ADSL/ISDN)
green
ISDN Data
green
(only LANCOM
green
1711 VPN)
green
Status of the four LAN ports in the integrated switch:
LAN 1
LAN 2
LAN 3
off
LAN 4
green
green
red
26
connection:
0
Not connected or no S
blinking
Initializing D-channel (establishing contact with the connec-
tion point)
constantly on
D channel ready for use
blinking
Error (CRC error, framing error, etc.)
constantly on
Activation of D-channel failed
If the ISDN status LED goes out automatically, this does not indicate
an S
bus error. Many ISDN connections and PBXs put the S
0
a power-save mode after a certain time. The S
reactivated as required, and the ISDN status LED will once again light
up green.
No connection established
blinking
Dialling
flashing
Establishing first connection
flashing
Establishing further connection
constantly on
Connection established via B channel
flickering
Data traffic (send or receive)
No network device connected
constantly on
Connection to network device operational, no data traffic
flickering
Data traffic
flickering
Collision of packets
voltage (no error message)
0
bus is automatically
0
bus into
0
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