Installation
100
Mitel SMB Controller
syd-0657/2.0 – R6.0 – 09.2018
Please also note the following points:
• The mains connector acts as a disconnecting device and must be positioned so that
it is easily accessible.
• Only ever use the supplied power supply unit.
Fig. 21
Powering the communication server from the mains
4. 4. 2
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 maxi-
mum power requirements of the communication server in its maximum configuration
and maximum traffic volume.
Tab. 32
Maximum power requirements of the communication server
The battery capacity required [Ah] can be calculated using the battery voltage and the
maximum bridging time. It is important to note that the battery must never be allowed to
become completely discharged and that in typical conditions only approx. 60% of the
maximum power requirements is needed.
WARNING
!
Hazard due to heat generation in the event of short-circuits. The mains power supply connection 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).
Communication server
Maximum power requirements
Mitel SMBC
150 VA
FXS1
FXS2
FXS3
FXS4
FXS5
FXS6
1.8 m
1.5 m
Power supply
Mains power