Hitachi HDS721032CLA362 User Manual
Hitachi hard disk drive specifications
26
6.1.2.3
5V PRECHARGE
+5 Vdc power that is available on the extended pins. This is used for pre-charging the I/O module.
The enclosure shall provide for a current limit of 4.5 A peak on each 5V pre-charge pin (R=1.1 Ohms).These
signals are the inbound high-speed differential signals that are connected to the serial ATA cable.
The enclosure shall provide for a current limit of 4.5 A peak on each 5V pre-charge pin (R=1.1 Ohms).These
signals are the inbound high-speed differential signals that are connected to the serial ATA cable.
6.1.2.4
12V PRECHARGE
+12 Vdc power that is available on the extended pins. This is used for pre-charging the 12V circuitry in the I/O
Option slot module.
The enclosure shall be capable of supplying 2.4 A peak on each 12 V pre-charge pin (R=5 Ohms).+5 Vdc power
that is available on the extended pins. This is used for pre-charging the I/O module.
The enclosure shall provide for a current limit of 4.5 A peak on each 5V pre-charge pin (R=1.1 Ohms).These
signals are the inbound high-speed differential signals that are connected to the serial ATA cable.
Option slot module.
The enclosure shall be capable of supplying 2.4 A peak on each 12 V pre-charge pin (R=5 Ohms).+5 Vdc power
that is available on the extended pins. This is used for pre-charging the I/O module.
The enclosure shall provide for a current limit of 4.5 A peak on each 5V pre-charge pin (R=1.1 Ohms).These
signals are the inbound high-speed differential signals that are connected to the serial ATA cable.