GE
RAFT
V
OLUSON
™ P8 / V
OLUSON
™ P6
DIRECTION 5723243, R
EVISION
6
DRAFT (M
AY
23, 2018)
B
ASIC
S
ERVICE
M
ANUAL
5-44
Section 5-11 - Power Distribution
5-11-1-3-2
Power Down Sequence Description
1.) On/Off Switch is pressed on OPIO.
2.) ON/OFF signal is sent from On/Off Switch via OPIO cable to DRFM
3.) “Shut down” dialog comes up and “Shut down” signal is sent.
4.) PC “Shut down” sequence is started in DRFM.
5.) At the end of this sequence DRFM sends PS_ON Signal to DPS.
6.) DPS shuts down all Supply voltages except Standby voltage (5VSB).
5-11-1-4
Mechanical Concept and Overview
The AC Power’s main tasks are to supply the internal subsystems with AC power. To reduce inrush
current, an inrush current limiter is implemented.
Voltage to peripherals are provided from input without configuration.
From the Mains Power Input module, the AC power is routed via an Inrush Current Limiter to an internal
ACDC module.
5-11-1-5
Functions of ACFE
•
Inrush Current limiter
•
Switch the peripheral power
NOTE:
All DC-supply voltages for built in peripherals are generated in DCDC module not inside ACFE.
Figure 5-22 Power Down Sequence
NOTICE
!! NOTICE:
The systems mains supply input voltage is a free voltage not need to configure for different AC power-
in.
