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22 Barracuda 50 Installation Guide, Rev. A
4. Connect the drive activity remote LED (optional)
This drive provides connections for a remote drive activity
LED. This step is optional because the drive will work fine
without an LED connected, but many people find this to be
helpful to determine when the drive is actively reading or
writing data.
Most host systems provide this LED which is a small “bulb”
(actually a light-emitting diode) located on the host’s front
panel. Simply locate this LED and connect the attached pair
of wires to the pins on the drive as shown in Figure 6 below.
Figure 6. Drive Active LED indicator connections
Jumper Plug
(enlarged to
show detail)
Drive
Front
J6
Reserved
Activity LED
Reserved
The shaded pins are shipped
with a cover installed. Do not
install jumpers on these pins.
Retain the cover unless you
install a 20-pin plug.
Pin 1
Note: On some LEDs the flat
side of indicator is cathode.
CATH