Figure 25 Backplane rear view
Table 10 Connector and pin header function description
For connecting to a mainboard, this SATA 7-pin connector is
applied. A proper cable selection is essential as well to make sure
good signal integrity, which can be maintained for the whole
connection path from mainboard HDD devices.
These two connectors are used to power four 3.5” hard disks,
connected to this backplane, and each can ensure that all drives
are supplied with stable power inputs. If the chassis fan is also
powered by fan header (JF01), this configuration is highly
recommended.
There are two 4-pin headers for the PWM fan, which is an
alternative solution that the chassis fan can be powered and
monitored by this backplane instead of a motherboard. If the
chassis fan is connected to a mainboard, users need to disable
the fan monitoring function of backplane by DIP switch (SW1).
The event LED with red/black wire is located on front bezel of
SR301 Plus and can be configured through this pin header.
Buzzer will alarm when fan and temperature become abnormal.
The settings of on-board hardware monitor can be controlled
and configured through this DIP switch. It can manage the
functions of PWM fan & Buzzer On/Off.
The motherboard can monitor HDD temperature and fan status
through this connector. However, the I2C connector on the
motherboard side is dependent on vendors, so please contact
our field application engineers to fully utilize this feature.
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