25
Installation
Port Assignment, Termination, Cable Lengths
must
be open in order to isolate the low
frequency voltage from the supply
(see also the following section enti-
tled
Note:
With the newer structure of
the communications system, the
switch is electronic. For this reason,
there is no “E” switch with this struc-
ture.
Actor/Sensor
In order to operate an entrance in-
tercom and door opener, you need
four twin-wire cables:
■
one cable between the entrance
intercom and the a/b1 port,
■
one cable between the door
opener and the Actor1 port
(marked Intercom/Door opener
in the diagram
■
one cable between the inter-
com input and the Actor2 port
(marked Intercom/Relay in the
diagram
to activate
the amplifier as well as
■
one cable between the doorbell
and the sensor port.
Only use entrance intercoms and
door openers complying with the
German FTZ Guideline no. 123D12.
LAN Port
The LAN port (OpenCom 120: LAN 1
port) enables integration of the
OpenCom 100 into an existing in-
house LAN by means of a 10 Mbit
hub.
A LAN line (twisted-pair line in ac-
cordance with 10BaseTcan be up to
100 m long. Use a shielded Ethernet
cable (STP cable, Shielded Twisted
Pair cable).
The second LAN port of the
OpenCom 120 is intended only for
networking two OpenCom 120/105,
120/110 or 120/120 systems.
DSL Port
External DSL modems can be con-
nected via the LAN port. In the case
of the OpenCom 100, the output of
the DSL modem (NTBBA) is led to the
LAN port of the OpenCom 100
(LAN 1 in the case of the
OpenCom 120) via an external
switch or hub. The router subse-
quently converts the PPPoE protocol
to the TCP/IP protocol of the LAN.
Summary of Contents for opencom 100
Page 1: ...OpenCom100 OpenCom 105 107 110 120 Mounting and Commissioning User Guide ...
Page 6: ...4 ...
Page 134: ...132 Index Notes ...