Note:
Clocking slips can occur between systems that are clocked from different Central Offices
(COs), if the COs are not synchronized. The slips can degrade voice quality.
Physical description
The NTAK79 uses a standard 9.5" by 12.5" multi-layer printed circuit board. The faceplate is
7/8" wide. The NTAK79 circuit card has a total of seven faceplate LEDs. Five of the LEDs are
directly associated with the operation of the Primary Rate interface (PRI). The remaining two
LEDs are associated with the on-board Clock Controller and the on-board D-channel interface
(DCHI). The LEDs are described in
on page 522.
Table 226: NTAK79 LEDs
LED
State
Definition
OOS
On (Red)
The NTAK79 2 MB PRI circuit card is disabled or out-
of-service.
Off
The NTAK79 2 MB PRI is not in a disabled state.
ACT
On (Green)
The NTAK79 2 MB PRI circuit card is in an active
state.
Off
The NTAK79 2 MB PRI is in a disabled state. The OOS
LED turns red.
RED
On (Red)
A red alarm state is detected. This represents a local
alarm state of: Loss of Carrier (LOS) Loss of Frame
(LFAS), or Loss of CRC Multiframe (LMAS).
Off
No red (local) alarm.
YEL
On (Yellow)
A yellow alarm state is detected. This represents a
remote alarm indication from the far end. The alarm
can be either Alarm Indication (AIS) or Remote Alarm
(RAI).
Off
No yellow (remote) alarm.
LBK
On (Green)
2 MB PRI is in loop-back mode.
Off
2 MB PRI is not in loop-back mode.
CC
On (Red)
The clock controller is switched on and is disabled by
the software.
On (Green)
The clock controller is switched on and is either locked
to a reference or in free run mode.
Flashing (Green)
The clock controller is switched on and attempting to
lock on to a reference (tracking mode). If the LED
NTAK79 2.0 Mb PRI card
522 Circuit Card Reference
July 2011
Содержание 1000 Series
Страница 1: ...Circuit Card Reference Nortel Communication Server 1000 7 0 NN43001 311 04 04 July 2011 ...
Страница 20: ...20 Circuit Card Reference July 2011 ...
Страница 30: ...Introduction 30 Circuit Card Reference July 2011 Comments infodev avaya com ...
Страница 116: ...Option settings 116 Circuit Card Reference July 2011 Comments infodev avaya com ...
Страница 140: ...NT1R20 Off Premise Station Analog Line card 140 Circuit Card Reference July 2011 Comments infodev avaya com ...
Страница 143: ...Figure 25 CP PIV card front Physical description Circuit Card Reference July 2011 143 ...
Страница 148: ...NT4N39AA CP Pentium IV Card 148 Circuit Card Reference July 2011 Comments infodev avaya com ...
Страница 244: ...NT5D33 and NT5D34 Lineside E1 Interface cards 244 Circuit Card Reference July 2011 Comments infodev avaya com ...
Страница 252: ...NT5D60 80 81 CLASS Modem card XCMC 252 Circuit Card Reference July 2011 Comments infodev avaya com ...
Страница 269: ...Figure 79 DDP2 cable for systems with an I O panel Physical description Circuit Card Reference July 2011 269 ...
Страница 287: ...Figure 86 Clock Controller Option 3 Operation Circuit Card Reference July 2011 287 ...
Страница 292: ...NT5D97 Dual port DTI2 PRI2 card 292 Circuit Card Reference July 2011 Comments infodev avaya com ...
Страница 302: ...NT5K21 XMFC MFE card 302 Circuit Card Reference July 2011 Comments infodev avaya com ...
Страница 346: ...NT6D80 MSDL card 346 Circuit Card Reference July 2011 Comments infodev avaya com ...
Страница 353: ...Figure 96 NTDK16 DLC Functional description Circuit Card Reference July 2011 353 ...
Страница 361: ...Figure 98 Digital line card jumper block and switch locations Configuration Circuit Card Reference July 2011 361 ...
Страница 362: ...NT8D02 and NTDK16 Digital Line cards 362 Circuit Card Reference July 2011 Comments infodev avaya com ...
Страница 378: ...NT8D09 Analog Message Waiting Line card 378 Circuit Card Reference July 2011 Comments infodev avaya com ...
Страница 393: ...Figure 111 Ground start call states outgoing call to CO FX WATS Operation Circuit Card Reference July 2011 393 ...
Страница 461: ...Figure 147 Paging trunk operation Applications Circuit Card Reference July 2011 461 ...
Страница 462: ...NT8D15 E and M Trunk card 462 Circuit Card Reference July 2011 Comments infodev avaya com ...
Страница 500: ...NTAK09 1 5 Mb DTI PRI card 500 Circuit Card Reference July 2011 Comments infodev avaya com ...
Страница 512: ...NTAK10 2 0 Mb DTI card 512 Circuit Card Reference July 2011 Comments infodev avaya com ...
Страница 534: ...NTAK79 2 0 Mb PRI card 534 Circuit Card Reference July 2011 Comments infodev avaya com ...
Страница 550: ...NTBK22 MISP card 550 Circuit Card Reference July 2011 Comments infodev avaya com ...
Страница 560: ...NTBK50 2 0 Mb PRI card 560 Circuit Card Reference July 2011 Comments infodev avaya com ...
Страница 566: ...NTBK51 Downloadable D channel Handler daughterboard 566 Circuit Card Reference July 2011 Comments infodev avaya com ...
Страница 584: ...NTCK16 Generic Central Office Trunk cards 584 Circuit Card Reference July 2011 Comments infodev avaya com ...
Страница 595: ...Figure 165 MGC block diagram Introduction Circuit Card Reference July 2011 595 ...
Страница 616: ...NTDW56 and NTDW59 Common Processor Media Gateway card 616 Circuit Card Reference July 2011 Comments infodev avaya com ...
Страница 642: ...NTDW61 and NTDW66 Common Processor Pentium Mobile Card 642 Circuit Card Reference July 2011 Comments infodev avaya com ...
Страница 662: ...NTRB21 DTI PRI DCH TMDI card 662 Circuit Card Reference July 2011 Comments infodev avaya com ...
Страница 668: ...NTVQ01xx Media Card 668 Circuit Card Reference July 2011 Comments infodev avaya com ...
Страница 676: ...NTC314AAE6 Media Gateway utility card 676 Circuit Card Reference July 2011 Comments infodev avaya com ...
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