880 NTAK10 2.0 Mb DTI cardATTENTIONIMPORTANT!Each Media Gateway that has a digital trunk must have a clock controller clockedto an external reference clock.Note: Clocking slips can occur between systems that are clocked fromdifferent COs, if the COs are not synchronized. The slips can degradevoice quality.The NTAK10 2.0 Mb DTI card is a digital trunk card that provides anIPE-compatible 2.0 Mb DTI interface for the CS 1000 system. This circuitcard includes an on-board clock controller that can be manually switchedin or out of service.The NTAK10 is installed only in the Media Gateway. It is not supported inthe Media Gateway Expansion. Up to four digital trunk cards are supportedin each Media Gateway. The NTAK10 card can be installed in slots 1, 2, 3,and 4 of the Media Gateway.Physical descriptionThe 2 Mb DTI pack uses a standard 9.5" by 12.5", multi-layer printed circuitboard. 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 thepower-up circuit. The clock controller LED is independently controlledby its own microprocessor.• After initialization, the LEDs (a-e) flash three times (0.5 seconds on, 0.5seconds off) and then individual LEDs go into appropriate states, asshown in Table 364 "NTAK10 LED states" (page 880).Table 364NTAK10 LED statesLED State DefinitionDIS 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.Nortel Communication Server 1000Circuit Card ReferenceNN43001-311 01.04 StandardRelease 5.0 23 May 2008Copyright © 2003-2008, Nortel Networks.
