Hitachi US7070447-001 manual RJ-45 LEDs, LEDs on FX ports, There is no link present on the port

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HiSpeed Switch Troubleshooting Guide

Table 3-2. RJ-45 LEDs

LED Color Status Description

LINK

LINK

STATUS

Link	Green	Solid	Link is active and connected.
		Flashing	The link is interrupted
		Off	There is no link present on the port
Diag	Amber		Used by support engineers.

STATUS
Activity	Green	Solid	LED lights when data is being
		Flashing	received or transmitted.
		Off	There is no data transmission
			currently on the link.
Collision	Amber	Flashing	Collision when in half-duplex mode.

Each FX port has two LEDs to the right of the SC connector. Table 3-3 lists the LEDs and their function.

	Table 3-3.		LEDs on FX ports
			LED	Color	State	Description
			Activity	Green	Solid or	Port is receiving or sending data
					Flashing
					Off	No transmission on port
		FX￿￿￿￿￿￿￿￿Port￿￿￿￿￿￿	Collision	Amber		Currently not supported on FX
						ports.
			Link	Green	Solid	Indicates good link with attached
						device
					Flashing	Indicates link to attached device
						is intermittent. Check cabling.
					Off	Indicates there is not link with
						attached device. Check cabling.
			Diag	Amber		Used by support.
3-4						US7070447-001, Rev 01