Siemens SIMATIC IPC627C Instruções de Operação Página 139

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Detailed descriptions
16.1 Motherboard
SIMATIC IPC627C
Operating Instructions, 11/2010, A5E02669068-02
139
Pin assignment of the equipment fan, X132
Pin no. Short description Meaning Input / Output
1 GND Ground -
2 +12 V Switched voltage supply Output
3 CPU FAN_CLK Clock signal Input
Pin assignment of the supply for the power supply fan, X131
Pin no. Short description Meaning Input / Output
1 GND Ground -
2 +12 V Switched voltage supply Output
3 PG1 FAN_CLK Clock signal Input
Connection for backup battery, X24, X240 (BATT)
A battery for buffering the CMOS RAM is connected to this connector. This is a 3 V Lithium
battery with a capacity of 750 mAh.
Pin no. Short description Meaning Input / Output
1 + Plus pole Input
2 - Minus pole -
Tap of the backup battery, X2400 (OUT)
This connection is intended for expansion modules with on-board CMOS-RAM. The voltage
of the backup battery can be tapped here to backup the CMOS RAM data of the expansion
module.
Pin no. Short description Meaning Input / Output
1 + Plus pole Output
2 - Minus pole -
NOTICE
No battery should be connected to this connection.
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