Digital Media 900TL manual LED Summary, Off Flashing, Hub MAU only, DEChub ONE only

LED Summary

The LEDs indicate status by being on, off, and flashing. Flashing LEDs indicate special situations. There are two flashing patterns and a scroll pattern. When an LED indicates a continuous single-flash pattern, network management has disabled the port. A continuous double-flash pattern indicates the wrong speed. In a scroll pattern, the LEDs turn on and off in a set order.

LED1	Off	On	Flashing
Power	No Power	Power OK
Module OK	Self-test failed	Self-test OK
	or not operating
4/16 Mb/s	No activity	Valid speed or
		management set
		speed
Lobe	Inactive	Connected to network	Continuous single flash: network
			management disabled port.
			Continuous double flash: wrong speed.
Hub MAU ONLY:
Ring A/B	Not connected	Connected to Ring A	Continuous single flash: network
		or Ring B	management disabled port.
			A and B alternately flash: MAU needs an
			upgrade or an upgrade is in progress.
DEChub ONE ONLY:
Ring In/	Inactive or	Connected to network	Continuous single flash: network
Ring Out	wire fault		management disabled port.
			Continuous double flash: wrong speed.

1Scroll: During power-up self-tests, all LEDs, except the Power LED, indicate a scrolling pattern.

10 DECmau 900TL