Physical description
Faceplate LEDs
Each motherboard (NTDW79AAE5 UDT E1/T1 card) has four DTI/PRI LEDs and one clock
controller LED. The clock controller LED is dual-color (red and green). The clock controller
LED states are described in
on page 588.
Table 252: Faceplate LEDs
State
Definition
On (Red)
The clock controller is equipped and
disabled/not configured.
On (Green)
The clock controller is equipped, enabled,
and is either locked to a reference or is in free
run mode.
Flashing (Green)
The clock controller is equipped and is
attempting to lock (tracking mode) to a
reference. If the LED flashes continuously
over an extended period of time, check the
CC STAT in LD 60. If the CC is tracking this
may be an acceptable state. Check for slips
and related clock controller error conditions.
If none exist, then this state is acceptable,
and the flashing is identifying jitter on the
reference
Off
The clock controller is not equipped.
Functional description
The main functional blocks of the Universal clock controller daughterboard include:
• phase difference detector circuit
• digital phase lock loops (PLL)
• digital-to-analog converter
• signal conditioning drivers and buffers
NTDW12AAE5 Universal Clock Controller daughter board
588 Circuit Card Reference
July 2011
Summary of Contents for 1000 Series
Page 1: ...Circuit Card Reference Nortel Communication Server 1000 7 0 NN43001 311 04 04 July 2011 ...
Page 20: ...20 Circuit Card Reference July 2011 ...
Page 30: ...Introduction 30 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 116: ...Option settings 116 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 143: ...Figure 25 CP PIV card front Physical description Circuit Card Reference July 2011 143 ...
Page 148: ...NT4N39AA CP Pentium IV Card 148 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 287: ...Figure 86 Clock Controller Option 3 Operation Circuit Card Reference July 2011 287 ...
Page 302: ...NT5K21 XMFC MFE card 302 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 346: ...NT6D80 MSDL card 346 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 353: ...Figure 96 NTDK16 DLC Functional description Circuit Card Reference July 2011 353 ...
Page 461: ...Figure 147 Paging trunk operation Applications Circuit Card Reference July 2011 461 ...
Page 462: ...NT8D15 E and M Trunk card 462 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 500: ...NTAK09 1 5 Mb DTI PRI card 500 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 512: ...NTAK10 2 0 Mb DTI card 512 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 534: ...NTAK79 2 0 Mb PRI card 534 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 550: ...NTBK22 MISP card 550 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 560: ...NTBK50 2 0 Mb PRI card 560 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 595: ...Figure 165 MGC block diagram Introduction Circuit Card Reference July 2011 595 ...
Page 662: ...NTRB21 DTI PRI DCH TMDI card 662 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 668: ...NTVQ01xx Media Card 668 Circuit Card Reference July 2011 Comments infodev avaya com ...
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