ERAE Electronics Industry EPT4220AP, Техническое и сервисное руководство

Страница: 33 / 76

M
ANUAL
_
EPT-4220AP
ERAE ELECTRONICS
33
4-1.6 J20 : PSU Power Connector
Pin No I/O Specification Description
1 ( 5V ) I 5V VSC 5V Input
2 ( 5V ) I 5V VSC 5V Input
3 ( 5V ) I 5V VSC 5V Input
4 ( GND )
GND
5V Ground
5 ( GND )
GND
5V Ground
6 ( GND )
GND
5V Ground
7 ( 12V ) I 12V VSC 12V Input
8 ( 12V ) I 12V VSC 12V Input
9 ( GND ) GND 12V Ground
10 ( GND ) GND 12V Ground
11 ( 12V ) I 12V FAN 12V
J20
12 ( GND ) GND FAN 12V Ground
4-1.7 J19 : PSU Power Detect Connector
Pin No I/O Specification Description
1 ( AC-DET ) I 5V / 0V
AC POWER DETECT PORT
: AC INPUT DETECTING.
: AC POWER ON
à
High ,
AC POWER OFF
à
LOW
: Turn off the power by power sequence to
stabilize PDP MODULE in case of power
breakdown.
2 ( RL -ON ) O 5V / 0V
RELAY CONTROL PORT FOR POWER ON
: Relay On
à
High, Relay off
à
Low
3 ( 5V STBY ) I 5V 5V INPUT PORT FOR VSC STANDBY
4 ( GND )
5 (VAVS-ON ) O 5V / 0V
PORT FOR VA/VS OF PDP MODULE.
: ON
à
HIGH , OFF
à
LOW
: To protect PDP MODULE, Micom turn on the
Va/Vs 2 seconds after checking 5V-MNT.
6 ( 5V-MNT ) I 5V / 0V
PDP MODULE STABLE CHECK PORT.
: The port to provide control signal to PDP
MODULE after the controller stabilized. At the
moment, MICOM always check this signal and
turn off the power when the signal is low.
J19
7 ( N.C )