KNX
IP Central Unit
Ref.-no.: IPZ 1000 REG
A local Ethernet (LAN) establishes – e.g. by means of a router – a
connection with the Internet
on request
. This type of connection is useful
with a time/volume tariff. In the event of an access from outside, e.g. via
external PC, the user interface of the browser initiates a trigger request
by the directory server to a specific phone number. The trigger request
from the directory server via the a-b input of the IP central unit causes the
IP central unit to establish a safe connection to the Internet via LAN and
router. As soon as the connection is established, the IP central unit logs
in with the directory server.
Important:
The request from the directory server to the a-b port does not
establish a telephone connection so that there are no connection
charges. The IP central unit detects the „ringing“ signal at the a-b
terminals. The calling number is not identified (CLI). For this reason, each
call on the connected line will be detected as a trigger signal. IIf this is
undesired, a separate MSN can be assigned to the telephone system in
an ISDN structure. In an analog structure, a separate connection is
necessary in this case.
5.2. Operation in a telephone system
Dial-in into the Internet via the LAN is not possible. The LAN interface
thus only offers access via PC, PDA, etc. for browser use. If the IP
central unit is to accessed from outside, the directory server must send a
trigger signal together with caller identification (CLI) to a specific phone
number via the connected modem/ISDN adapter (CLIP function
required). The IP central unit identifies the directory server by th
transmitted phone number, there is no call set-up. The IP central unit
dials in with a service provider via modem/ISDN adapter. As soon as a
safe connection with the Internet is established, the IP central unit logs in
with the directory server.
Important:
After dial-in of the IP central unit into the Internet, telephone
charges depending on the specific online tariff will become due.
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