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P
OWERING THE COMMUNICATION SERVER
CHAPTER 4 INSTALLATION
Powering the communication server
The communication server is powered as standard with 230 VAC or 115 VAC. To ensure that its operation
is maintained even in the event of a mains outage, an external uninterruptible power supply (UPS) must
be used.
115/230 V power supply
The communication server is powered by the supplied power supply unit. The power supply unit is
connected to the mains using a two-pin standard power cable.
WARNING: Hazard due to heat generation in the event of short-circuits. The mains power supply connec-
tion must be protected with 16 A maximum in countries with 230 V mains power (for instance in Europe),
and with 20 A maximum in countries with 115 V mains power (e.g. in North America).
Please also note the following points:
• The mains connector acts as a disconnecting device and must be positioned so that it is easily acces-
sible.
• Only ever use the supplied power supply unit.
Figure 4.9: Powering the communication server from the mains
Uninterruptible power supply (UPS)
The use of an external uninterruptible power supply (UPS) guarantees operation even in the event of a
mains outage.
The UPS battery capacity is rated according to the communication server’s primary power requirements
and the required bridging time. The table below shows the maximum power requirements of the commu-
nication server in its maximum configuration and maximum traffic volume.
Table 4.2:Maximum power requirements of the communication server (Sheet 1 of 2)
Communication server Maximum power requirements
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