21
Installation Available Ports
■ One PCM port for the connection
of two systems, designed as an
RJ45 socket (PCM)
■ Six switchable S
0
ports, which
can be connected to either an
internal or an external S
0
bus.
The internal port is designed as
a pressure terminal, the external
one as an RJ45 socket
■ 18 U
pn
ports, designed as pres-
sure terminals (U
pn
1 to U
pn
18)
■ Two LAN ports (10BaseT), de-
signed as RJ45 sockets. The sec-
ond LAN port of the
OpenCom 120 is intended only
for networking two
OpenCom 120/120 or 110/120
systems
■ One sync port for synchronisa-
tion with another telecom sys-
tem, designed as a pressure ter-
minal (Sync)
■ One COM port for connection to
a PC for configuration or transfer
of call data, designed as a 9-pin
submin D plug (V.24)
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