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Instructions: Connecting with the ISDN Line
1.
Insert the long, gray end of the DSL/telephone cable into the
socket on the FRITZ!Box labeled “DSL”.
Power
LAN 4
LAN 3
LAN 2
LAN 1
WAN
Fon S
0
Fon 2
DSL
LTE
ISDN
2.
Insert the short, black end of the cable into a jack (S
0
interface)
on your ISDN NT.
Connecting
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FRITZ!Box 6890