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HGST HUS724040ALS640 User Manual

HGST HUS724040ALS640
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HGST Ultrastar 7K4000 (SAS) Hard Disk Drive Specification
18
7.1.2 Voltage and Ground Signals
The 12V and 5V contacts provide all of the voltages required by the drive. The two voltages share a common ground plane to
which all of the ground contacts are connected.
7.1.3 Ready LED output
The drive provides an open-drain driver with 15mA of current sink capability to the Ready LED Output signal. The
cathode of the LED should be connected to this signal. The LED and the current-limiting resistor must be provided by the
enclosure
S9 RS+ SAS Secondary Port Receive
(Positive) signal
S10 RS- SAS Secondary Port
Receive (negative) signal
S11 GND GND for SAS Secondary
Port
S12 TS- SAS Secondary Port
Receive (negative) signal
S13 TS+ SAS Secondary Port
Receive (positive) signal
S14 GND GND for SAS Secondary
Port
P1 +3.3V NOT USED (Pins P1-P3
tied internally)
P2 +3.3V NOT USED (Pins P1-P3
tied internally)
P3 +3.3V NOT USED (Pins P1-P3
tied internally)
P4 GND GROUND
P5 GND GROUND
P6 GND GROUND
P7 +5V-Charge Pre-charge pin for +5V
P8 +5V +5V power supply input
P9 +5V +5V power supply input
P10 GND GROUND
P11 READY LED READY LED output
P12 GND GROUND
P13 +12V=Charge Pre-charge pin for +12V
P14 +12V +12V power supply input
P15 +12V +12V power supply input
Pin Number Signal Description

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HGST HUS724040ALS640 Specifications

General IconGeneral
BrandHGST
ModelHUS724040ALS640
CategoryStorage
LanguageEnglish

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