Installation
Connectible Devices
52
Example of port assignment of the OpenCom 130 with terminals
3.12.1 Internal/External S
0
Ports
All S
0
ports can be operated externally, i.e. on an ISDN network termination unit.
The S
0
2 port of an OpenCom 130 and an OpenCom 131 can also be connected
internally. S
0
ports on interface cards (available for an OpenCom 130 and
OpenCom 150) can also be switched external/internal. It is not possible to use
both assignments simultaneously.
Up to eight devices per bus (ISDN telephones, ISDN fax machines, ISDN base sta-
tions, ISDN cordless telephones, ISDN adapters for the PC among others) can be
connected to the internal S
0
ports by twin-pair cables. The power for three of
these devices can be supplied by the bus; if more devices are used, they then
require their own power supplies. The internal S
0
buses enable point-to-multi-
point calls as per the DSS1 protocol (Euro-ISDN).
U
pn
3/4
a/b
1/2
a/b
3/4
Sensor 1
LAN
S
0
1 ext
NTBA
R
Hub
R
COM
U
pn
1/2
S
0
2 int
Intercom/Relay
Intercom/Door opener
Actuator
1 + 2
Summary of Contents for OpenCom 130
Page 1: ...130 OpenCom100 131 150 Mounting and Commissioning User Guide ...
Page 10: ...8 ...
Page 202: ...Index 200 Notes ...
Page 203: ......