Nortel Networks 553-3001-211 manual NTAK09 DTI/PRI power on self-test, NTAK20 power on self-test

Page 700 of 894 NTAK09 1.5 Mb DTI/PRI card

NTAK09 DTI/PRI power on self-test

When power is applied to the NTAK09 DTI/PRI circuit card, the card performs a self-test. The LEDs directly associated with the NTAK09 circuit card are DIS, ACT, RED, YEL, and LBK. The clock controller LED is also included in the power on self-test. Table 225 provides the state of the NTAK09 LEDs during the self-test procedure.

Table 225

NTAK09 LED states during self-test

Action	LED State
Power up system	Top five LEDs light for eleven seconds
Self-test in progress	Top five LEDs go out for one second
	If the self-test passes, the top five LEDs flash
	on and off three times.
	If the self-test detects a partial failure, the top
	five LEDs flash on and off five times
	When the self-test is completed, the LEDs are
	set to their appropriate states

NTAK20 power on self-test

The clock controller daughterboard LED is the second LED from the bottom on the faceplate of the NTAK09 DTI/PRI card.

When power is applied to the NTAK20 clock controller, the LED is initially off for two seconds. If the self-test passes, the LED turns red and flashes on and off twice.

When the self-test is completed, the LED remains red until the clock controller is enabled. When enabled, the clock controller LED either turns green or flashes green.

553-3001-211 Standard 2.00 September 2004