Nortel Networks 553-3001-211 manual NTAK10 LED states Part 1, Oos, Nea, Fea

Page 710 of 894 NTAK10 2.0 Mb DTI card

Physical description

The 2 Mb DTI pack uses a standard 9.5" by 12.5", multi-layer printed circuit board. The faceplate is 7/8” wide and contains six LEDs.

The LEDs operate as follows:

•After the card is plugged in, the LEDs (a-e) are turned on by the power-up circuit. The clock controller LED is independently controlled by its own microprocessor.

•After initialization, the LEDs (a-e) flash three times (0.5 seconds on, 0.5 seconds off) and then individual LEDs will go into appropriate states, as shown in Table 229.

Table 229

NTAK10 LED states (Part 1 of 2)

LED	State	Definition
DIS	On (Red)	The NTAK10 circuit card is disabled.
	Off	The NTAK10 is not in a disabled state.
OOS	On (Yellow)	The NTAK10 is in an out-of-service state.
	Off	The NTAK10 is not in an out-of-service state.
NEA	On (Yellow)	A near end alarm state has been detected.
	Off	No near end alarm.
FEA	On (Yellow)	A far end alarm state has been detected.
	Off	No far end alarm.
LBK	On (Yellow)	NTAK10 is in loop-back mode.
	Off	NTAK10 is not in loop-back mode.
CC	On (Red)	The clock controller is switched on and disabled.
	On (Green)	The clock controller is switched on and is either locked to a
		reference or is in free-run mode.

553-3001-211 Standard 2.00 September 2004