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User Manual
9
SAS IN Ports (A and B)
: SAS cable must be connected to these ports and to the
SAS HBA, or other Expansion Chassis’s SAS Expansion Port, if this chassis is
connected in daisy-chain.
SAS IN Link LED
: Green indicates SAS IN Port has connected or linked.
SAS IN Access LED
: Blue indicates SAS IN Port is being accessed.
SAS Expansion Ports (A and B)
: SAS cable must be connected to these ports and
to other SAS IN Port of other expansion chassis for daisy-chaining.
Chassis ID Dial
: Used for assigning the Expansion Chassis ID Number. Press the
upper or lower button to select (increase or decrease) the Chassis ID Number.
RS-232 Port
: Used for upgrading the Firmware of JBOD controller in the Expansion
Chassis.
Fault LED
: Red (LED is on) indicates there is problem within the Expansion Chassis.
If LED is off, the Expansion Chassis is in normal condition.
HDD LED
: Blue indicates activity on the JBOD controller or disk drives.
Ready LED
: Blinking green indicates Expansion Chassis is Powered On and Ready.
Mute
: Use this button to silence the alarm beeper. If another failure event happens,
the alarm beeper will sound again and this button can be pressed again to silence
alarm.