Nortel Circuit Card 311 Reference page 882

882 NTAK10 2.0 Mb DTI card
LED State
On (Green)
Flashing (Green)
Off
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:
•
•
Table 366
NTAK10 LED states
LED State
DIS On (Red)
Off
OOS On (Yellow)
Off
NEA On (Yellow)
Off
FEA On (Yellow)
Off
LBK On (Yellow)
Off
On (Red)
CC
On (Green)
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Definition
The clock controller is switched on and is either locked to a reference
or is in free-run mode
The clock controller is switched on and locking onto the primary
reference
The clock controller is switched off
Note: See "Clock controller interface" (page 894)
more on tracking and free-run operation.
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 go into appropriate states, as
shown in Table 366 "NTAK10 LED states" (page
Definition
The NTAK10 circuit card is disabled.
The NTAK10 is not in a disabled state.
The NTAK10 is in an out-of-service state.
The NTAK10 is not in an out-of-service state.
A near end alarm state has been detected.
No near end alarm.
A far end alarm state has been detected.
No far end alarm.
NTAK10 is in loop-back mode.
NTAK10 is not in loop-back mode.
The clock controller is switched on and disabled.
The clock controller is switched on and is either locked to a reference
or is in free-run mode.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
in this chapter for
882).