Advantech PCM-3362 Gpio Connector CN21, ATX Power in connector CN23, Power Connectors CN24

2.16GPIO Connector (CN21)

The board supports 8-bit GPIO through GPIO connector. The 8 digital inputs and out- puts can be programmed to read or control devices, with each input or output defined.

2.17ATX Power in connector (CN23)

The PCM-3362 can support an advanced soft power switch function, if an ATX power supply is used. please follow below instruction to enable ATX functions.

1.Plug ATX power cable (1700002332) into CN24.

2.Connect the 3-pin plug of this power cable to CN23 (ATX Power in connector).

3.Connect the power on/off button cable of the chassis to CN12 (front panel con- nector) pin1-2.

Caution! Important Make sure that the ATX power supply can take at least a 10mA load on the 5 V standby lead (5VSB). If not, you may have diffi- culty powering on your system.

2.18Power Connectors (CN24)

Supplies main power +5 V to the PCM-3362, and to devices that require +12 V.

2.19I2C Bus connector (CN25)

PCM-3362 provides I2C Bus connector for customer connection to I2C protocol embedded device.

Advantech also provide I2C API allowing a developer to interface with an embedded system environment and transfer serial messages using the I2C protocols, allowing multiple simultaneous device control.

2.20-12 V & -5 V power connector (CN26)

The PCM-3362 is equipped with a Negative Power Input connector providing -12 V & -5 V power if your applications happen to need it.

2.21Watchdog timer configuration

An onboard watchdog timer reduces the chance of disruptions which EMP (electro magnetic pulse) interference can cause. This is an invaluable protective device for standalone or unmanned applications. Setup involves one jumper and running the control software (refer to Appendix).

Chapter 2 Hardware Installation

15 PCM-3362 User Manual