Datasheet

Chapter 3: System Interface
3-3
3-4 Serial ATA Drive Carrier LEDs
Each Serial ATA drive carrier has two LEDs.
z Green: When illuminated, the green LED on the front of the drive
carrier indicates drive activity. A connection to the Serial ATA backplane
enables this LED to blink on and off when that particular drive is being
accessed.
z Red: A SAF-TE compliant backplane (not included) is needed to acti-
vate the red LEDs, which indicate a drive failure. Please refer to Chapter 6
for instructions on replacing failed Serial ATA drives.
3-5 LAN (Ethernet) Port LEDs
Each LAN port has a yellow and a green LED. The yellow (left) LED indi-
cates activity while the other (right) LED may be green, orange or off to
indicate the speed of the connection. See the tables below for the func-
tions associated with these LEDs.
LED
Color
Off
Green
Orange
Definition
No Connection
100 MHz
1 GHz
Gb LAN Right LED
Indicator
LED
Color
Off
Yellow
Definition
Not Active
Active
Gb LAN Left LED
Indicator