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2.0 Mb DTI/PRI Administration and Maintenance Guide Book ... - Home

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Page 942 of 1536 Chapter 7 — <strong>DTI</strong> <strong>Maintenance</strong><br />

NTAK10 Faceplate LEDS<br />

The NTAK10 2 <strong>Mb</strong> <strong>DTI</strong> circuit card has a total of six LEDs on its face. Five<br />

of the LEDs are directly associated with the operation of the NTAK10 2 <strong>Mb</strong><br />

<strong>DTI</strong> circuit card. The remaining LED is associated with the on-board clock<br />

controller. Following is a table of the LEDs found on the NTAK10 2 <strong>Mb</strong> <strong>DTI</strong><br />

circuit card <strong>and</strong> the meaning of each:<br />

553-3011-315 St<strong>and</strong>ard 10.0 May 1999<br />

LED State Definition<br />

DIS On (Red) The NTAK10 2 <strong>Mb</strong> <strong>DTI</strong> circuit card is<br />

disabled<br />

Off The NTAK10 2 <strong>Mb</strong> <strong>DTI</strong> is not in a<br />

disabled state<br />

OOS On (Yellow) The NTAK10 2 <strong>Mb</strong> <strong>DTI</strong> circuit card is in<br />

an out of service state.<br />

Off The NTAK10 is not in an out of service<br />

state.<br />

NEA On (Yellow) A near end alarm state has been detected<br />

Off No near end alarm<br />

FEA On (Yellow) A far end alarm state has been detected<br />

Off No far end alarm<br />

LBK On (Yellow) NTAK10 2 <strong>Mb</strong> <strong>DTI</strong> is in loop-back mode<br />

Off NTAK10 2 <strong>Mb</strong> <strong>DTI</strong> is not in loop-back<br />

mode<br />

CC On (Red) The clock controller is switched on <strong>and</strong><br />

disabled<br />

On (Green) The clock controller is switched on <strong>and</strong> is<br />

either locked to a reference or is in free<br />

run mode<br />

Flashing<br />

(Green)<br />

The clock controller is switched on <strong>and</strong><br />

locking onto the primary reference<br />

Off The clock controller is switched off

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