Nortel Networks 553-3001-211 manual NTAK09 LED states, Dis, Act, Lbk

NTAK09 1.5 Mb DTI/PRI card Page 699 of 894

The first five LEDs operate as follows:

•During system power up, the LEDs are on.

•When the self-test is in progress, the LEDs flash three times and then go into their appropriate states, as shown in Table 224.

Table 224

NTAK09 LED states

LED	State	Definition
DIS	On (Red)	The NTAK09 circuit card is disabled.
	Off	The NTAK09 is not in a disabled state.
ACT	On (Green)	The NTAK09 circuit card is in an active state. No alarm states
		exist, the card is not disabled, nor is it in a loopback state.
	Off	An alarm state or loopback state exists, or the card has been
		disabled. See the other faceplate LEDs for more information.
RED	On (Red)	A red-alarm state has been detected.
	Off	No red alarm.
YEL	On (Yellow)	A yellow alarm state has been detected.
	Off	No yellow alarm.
LBK	On (Green)	NTAK09 is in loop-back mode.
	Off	NTAK09 is not in loop-back mode.

Circuit Card Description and Installation