AMD PCM-5820 manual Ethernet LED and HDD/power LEDs, Watchdog timer configuration

2.19 Ethernet LED and HDD/power LEDs

2.19.1 LED1 (Ethernet LED)

Table 2-8: Ethernet LED setup

LED	Setting
Green lamp	Tx
Yellow lamp	Link

The LED should be set so that when the cable is connected, the yellow lamp is activated; and when data is transmitted, the green lamp is activated.

2.19.2 LED2 (Power and HDD LED)

Table 2-9: HDD/power LED setup

LED	Setting
Green lamp	Power
Yellow lamp	HDD

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.

2.20 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).

28 PCM-5820 Series User's Manual