loop of varying length up to 1070 m (3500 ft) using 24 AWG wire with a maximum allowable
AC signal loss of 15.5 dB at 256 kHz, and a maximum DC loop resistance of 210 ohms; 26
AWG wire is limited to 745 m (2450 ft).
Table 158: Digital line card-power required
Voltage
Current (max.)
±5.0 V dc
150 mA
+15.0 V dc
1.6 Amp
–15.0 V dc
1.3 Amp
Foreign and surge voltage protections
In-circuit protection against power line crosses or lightning is not provided on the NT8D02
Digital Line card. The NT8D02 Digital Line card does, however, have protection against
accidental shorts to –52 V DC analog lines.
When the card is used to service off-premise telephones, primary and secondary Main
Distribution Frame (MDF) protection must be installed.
Off-premise telephones served by cable pairs routed through the central office, or crossing a
public right-of-way, can be subject to a requirement for on-card protection, and MDF protectors
may not be acceptable. Check local regulations before providing such service.
Environmental specifications
Table 159: Digital line card - environmental specifications
on page 358 shows the
environmental specifications of the card.
Table 159: Digital line card - environmental specifications
Parameter
Specifications
Operating temperature
0° to +60°C (+32 to +140°F), ambient
Operating humidity
5 to 95% RH (non-condensing)
Storage temperature
–40° to +70° C (–40° to +158° F)
Connector pin assignments
Table 160: NT8D02 Digital Line card - backplane pinouts
on page 359 shows the I/O pin
designations at the backplane connector, which is arranged as an 80-row by 2-column array
NT8D02 and NTDK16 Digital Line cards
358 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 ...
Page 700: ......