Instruction manual

1. Components Overview
15
Figure 1-15 Front panel layout
Table 1-6 LED indications, buttons, and connectors
No. Name Type Description Details
(1) PWR LED: Green Indicates the power
supply status.
Lit in green: Powered-on.
Blinking green at long intervals: Sleep
mode
Off: Powered-off or a failure with a power
supply unit.
(2) ST1 Green, Orange,
Red LED
Indicates the device
status.
Lit in green: Standing by or operating.
Blinking green: Getting ready (starting up).
Blinking green at long intervals: LED
operation OFF setting
Orange: Initial state at power-up
Blinking red: Partial failure with the switch
Lit in red: Fatal failure in the device
(operation cannot continue)
Off: Powered-off or a failure with a power
supply unit.
(3) ST2 LED: Orange (Not used) Orange: Initial state at power-up
Off: Unused after startup is complete
(4) MC Connector Memory card slot Memory card slot
(5) ACC LED: Green Indicates the memory
card status.
Lit: Accessing the memory card. (Do not
remove the memory card.)
Off: Memory card is in idle mode. (The
memory card can be inserted or
removed.)
(6) CONSOLE Connector CONSOLE port RS-232C port to connect a console
terminal
(7) LINK LED: Green Indicates the
operating status of a
1000BASE-X/T
Ethernet port.
Lit in green: Initial state after the switch is
turned on, or when a link is established.
Off: Link failure or block when the green
ST1 LED is on.
(8) T/R LED: Green Blinking green: Sending or receiving
frames.