LANCOM 1722 VoIP – LANCOM 1723 VoIP – LANCOM 1724 VoIP – LANCOM 1823 VoIP
Chapter 2: Installation
45
EN
Avoid having multiple unconfigured LANCOMs at once within a single
network segment. Any unconfigured LANCOM takes on the same IP
address (ending in '254'), and so address conflicts could arise. To
avoid problems, multiple LANCOMs should be configured one after
the other with the respective device being assigned with a new and
unique IP address (not ending in '254') each time.
ADSL
– connect the ADSL interface
with the splitter by using the sup-
plied ADSL connector cable (transparent connectors).
Connection to the ISDN
– to connect the LANCOM VoIP Router to the
ISDN, plug in one end of a supplied ISDN cable (light-blue connectors) to
an ISDN interface in TE mode. When shipped, the ISDN interfaces marked
with
⌧
are set up in TE (external) mode.
Plug in the other end of the
ISDN cable into an ISDN/S
0
point-to-point line connector or point-to-
multipoint line connector.
For the models LANCOM 1723 VoIP and LANCOM 1823 VoIP, the
interface ISDN2 is not to be connected to the ISDN network, even
after being reset to TE mode!
Please also observe the notices about configuring the ISDN interfaces
(
Connecting ISDN terminal devices
—to connect ISDN terminal devices
(ISDN telephones or ISDN PBXs) to the LANCOM VoIP Router, connect
these to an ISDN interface in NT mode. When shipped, the ISDN interfaces
marked with
are set to NT (internal ISDN connection) mode.
For the models LANCOM 1723 VoIP and LANCOM 1823 VoIP, the
ISDN2 interface
can supply a maximum of two telephones with
power from the ISDN feed. Please also observe the notices about con-
figuring the ISDN interfaces (
Connecting to the analog telephone network
—to connect the
LANCOM VoIP Router to the analog telephone network, plug the end of
the supplied analog connector cable marked in yellow (RJ45) into the
combined ISDN/analog interface
. The other end of the analog connec-
tor cable (RJ11) is to be plugged into an analog exchange line (e.g. a split-
ter). If the exchange line has a TAE-N/F socket, you can use the supplied
