Connecting to the Network Provider
40
This section describes how to connect to the NTBA or to the NTPM of the network provider. If at all possible, it is determined
whether the device is to be connected directly or the lines are to be laid permanently. In addition, this section provides information
on how to connect the PBX to the Internet (VoIP) using a router. The diagram at the end gives an overview of how to set up the
connection for an ISDN connection and DSL (
Warning: Touching voltage-carrying conductors or
telephone connections may cause a life-threatening
electric shock.
씮
The PBX contains hazardous voltages, even out-
side of the power supply unit (for instance ringer
voltages). Work on active, contact-hazardous
parts is only permitted after creating a voltage-
free state.
Working close to active parts is only permitted if
these parts are voltage-free or are protected
against direct contact.
씮
Casing variants for wall mounting: Pull out the
power plug of the PBX before commissioning a
skilled electrician to open the casing to install the
expansion module or perform switching or con-
necting services.
씮
If available, also disconnect the devices from
auxiliary power sources (for example, UPS).
Important: Improper use may cause, for example,
functional restrictions or interference, the destruction
of the device or, in a worst case scenario, personal
injury.
씮
Only connect equipment that is compatible with
the intended use of the PBX.
Note: For 19" casing variants, no connections are
made directly to the module itself but rather via the
connector panel on the front panel. The socket
assignments on the front panel are described as of
.
Connecting ISDN (NTBA) Directly to the External S
0
Port
Requirements
– S
0
module and connection cable (included in the
package) .
– Enabled operation mode “S
0
external” on the S
0
port
in question. See
.
– Enable the terminators at both ends of the connection
– in the NTBA and in the PBX on the external S
0
port
in question. See
.
– Minimal distance between the devices
Note: If the NTBA is relatively far away from the PBX,
a cable must first be laid.
Steps to Take
1.
Insert one end of the ISDN cable into the RJ-45
socket on the external S
0
port.
2.
Insert the other end of the ISDN cable into the RJ-45
socket on the NTBA.
Connecting to the Network Provider
Fig. 37: ISDN connection and DSL
Network provider
Splitter
Ethernet interface
External S
0
port
Wall socket
DSL router
NT
PBX
Summary of Contents for COMmander Basic.2
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