Advantech PCM-5825, User Manual

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Chapter 2 Installation 2 5
The LED should be set so when the HDD is accessed the yellow
lamp is activated, and when the power is on the green lamp is
activated.
2.19 Watchdog timer configuration
An on-board 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 C).
2.19.1 Watchdog timer action (J4)
When the watchdog timer activates (CPU processing has come to a
halt), it can reset the system or generate an interrupt on IRQ11.
This can be set via J4 as shown below:
Table 2-9: Watchdog timer action
*System reset IRQ11
J4
* default setting
2.20 USB connectors (CN7)
The PCM-5825 board provides two USB (Universal Serial Bus)
interfaces which gives complete Plug and Play, and hot swaps for
up to 127 external devices. The USB interfaces comply with USB
specification Rev. 1.0 and are fuse protected.
The USB interfaces are accessed through two 10-pin flat-cable
connectors, CN7. You will need an adapter cable if you use a
standard USB connector.
The USB interfaces can be disabled in the system BIOS setup.
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