Mitel 470 System Manual page 104

Installation
Fig. 24 Power supply to the communication server
Note
For an external power supply use the optional auxiliary power supply unit APS2 exclusively.
Tip
In redundancy operation, connect the communication server power supply and the APS2 auxil-
iary power supply unit to separately protected mains power. This will further enhance the sys-
tem's operating reliability.
Mounting the auxiliary power supply APS2
The auxiliary power supply APS2 is supplied with a fastening kit that includes two fas-
tening plates and 6 screws. If a fan-out-panel FOP or EFOP is already fitted, the auxil-
iary power supply can be installed behind the connection panel.
The following diagram shows the fan-out-panel FOP from below with the auxiliary
power supply fitted.
104
–
+
24 VDC
Auxiliary power suply
unit (APS2)
Voltage selector
Mains power
115/230 V
Mitel 470 as of R4.1
syd-0585/1.2 – R4.1 – 08.2016