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34
S
0
Ports
Interfaces and Connectible Terminals
S
0
Ports
All of the eight S
0
interfaces on the
MX+S01-8 interface card are switch-
able, i.e. they can be used either for
external connections (ISDN basic ac-
cess or a second PBX) or for internal
connections (ISDN terminals). It is
not possible to use these interfaces
simultaneously for both types of
connections.
The S
0
ports have been imple-
mented as RJ45 sockets.
Pin Assignment
S
0
interface pin assignment
The following table explains the S
0
interface pin assignment.
Overview: Interfaces and Connectible Terminals
Interface
Terminals/Systems
Page
S
0
(internal)
ISDN terminals (DSS1 protocol):
telephones, fax machines, base stations and handsets, ISDN
cards for PCs
U
pn
Digital terminals (ISDN terminals, system telephones) and
DECT base stations
a/b
Analogue terminals:
telephones, G3 fax machines, (external or internal) mo-
dems, external music-on-hold devices, external voice mail
systems, external intercom systems
PCM
Connection of a second PBX (PBX cascading)
LAN
Connection to a LAN (local area network) or of a DSL
modem
COM / V.24
Connection of a PC (for transmitting connection data)
1 2 3 4 5 6 7 8
+ + – –
Содержание OpenCom 510
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