Power Supply - Mitel 470 System Manual

Fig. 9 Interfaces, display and control elements of the call manager card CPU1
Tab. 15 Interfaces, display and control elements of the call manager card CPU1
Interfaces, display and control elements
On/Off button with integrated status LED
Colour display
Navigation keys
Ethernet interfaces 1Gbit/s (LAN)
1)
FXS terminal interfaces
Slot for Flash card
Slot for DSP modules
Slot for IP Media module
Slot for RAM module
Slot for EIM card
1) Multifunctional analogue interfaces
3. 2. 2

Power supply

Internal power supply unit PSU2U
The Mitel 470 communication server is powered as standard directly with a mains ca-
ble. The voltage converter needs to be set to the correct position to match the mains
power (230 VAC or 115VAC) (see also "Powering the communication server",
page 102). The internal power supply unit PSU2U powers all the system components
and a limited number of connected terminals.
External auxiliary power supply APS2
The external auxiliary power supply APS2 is used for the following purposes:
• Increasing the supply power available. This is required only for systems which are to
operate a large number of terminals without their own power supply.
• As a redundancy for the internal power supply unit PSU2U. If either the internal or
the external power supply unit fails, the system switches over to the intact power
supply, without interruption.
The external auxiliary power supply APS2 is also powered by the 115/230 V mains.
Mitel 470 as of R4.1
syd-0585/1.2 – R4.1 – 08.2016
Expansion Stages and System Capacity
Num-
ber of Position Remarks
entries
1 [1]
1 [2]
4 [3]
3 [4] RJ45 sockets
4 [5] RJ45 sockets
1 [6] Device ships already equipped
2 [7] Can be fitted as an option, stackable
1 [8] Can be fitted as an option
1 [9] Device ships already equipped
1 [10] Device ships already equipped
45