Zhone Technologies 5620 Power-On, Status LEDs, Condition Status, Alarm red

Power-On

When power is applied, the RTU performs self-diagnostics and the PWR LED is on. The self-diagnostics includes a power-on self-test. During the power-on self-test, all of the LEDs turn on for one second.

Power – green

Alarm – red

Test – yellow

Digital Subscriber Line – green

Ethernet Link – green

PWR ALM TST DSL ETHERNET

5620

TM

98-15835

Refer to Troubleshooting, page 14, for LED indications requiring action.

Status LEDs

All of the LEDs turn on and off during the power-on self-test. After a successful self-test, the LEDs should appear as indicated in BOLD in the Condition column below.

LED	Condition	Status
PWR	ON	RTU has power.
ALM	OFF	No active alarms.
	ON	An alarm condition exists.
TST	OFF	No active tests.
	ON	The TST LED is on during the power-on self-test and
		during a test initiated by the NSP.
DSL	Blinking	RTU is establishing the active DSL link. The LED blinks
		on and off about five times per second.
	ON	The DSL link is now active and ready to transmit and
		receive data.
	OFF	The DSL link has not been established.
ETHERNET	ON	The Ethernet 10BaseT connection to the Ethernet hub or
		PC is active.
	OFF	No Ethernet 10BaseT device is detected.

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