Connection With The Motherboard; Pin Assignment - Beckhoff C9900-P223 Installation And Operating Instructions Manual

Installation Instructions
Pin strips
on the output side
Connection with the
motherboard
Pin assignment of the
output connector
Signal description
8
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Connection with the motherboard

The power supply unit is connected with the motherboard according to the
installation instructions of the board.

Pin assignment

Connector: MOLEX-34045-1613
Function Description
RX TTL-input RS232-interface (view from power supply)
TX TTL-output RS232- interface (view from power supply)
PS_ON TTL-input voltage request from motherboard
High -> motherboard reports "stand-by"
Low -> motherboard reports "connect voltage"
Powergood TTL-output
Low -> voltages at motherboard connector not o.k.
High -> voltages at output connector o.k.
ATXSW TTL-output
Enables the Power supply to boot the Industrial PC via the ATX-
switch:
Low -> motherboard logic shall open the ATX-switch
HIGH -> motherboard logic shall close the ATX-switch
GND ground
VCC +5V 20A
+12V +12V 5A
5V-Standby +5V 1A standby voltage
Pin Signal Pin
1 RX 9
2 PS_ON 10
3 ATXSW 11
4 + 12V 12
5 GND 13
6 GND 14
7 + 5V 15
8 + 5V 16
C9900-P223 / C9900-P224
Signal
TX
Powergood
5 V Standby
+ 12V
GND
GND
+ 5V
+ 5V