Power supplies
Page 203 of 544
Option 11C and 11C Mini
Technical Reference Guide
Reserve power
Discharge requirements
Reserve batteries must be able to provide 500 watts of power to each cabinet.
This is a worst-case figure based on the maximum power consumption per
cabinet.
Backup options
The options available when backing up the AC-powered Option 11C system
are as follows:
•
Use customer-supplied batteries along with the NTAK28 breaker
assembly.
•
Connect an Uninterrupted Power Supply (UPS) to the Option 11C
system.
•
Use Nortel Networks supplied NTAK75 or NTAK76 battery units.
Customer supplied reserve batteries with NTAK28
Customer supplied batteries may be used as long they meet the requirements
set out in Table 64. One NTAK28 breaker assembly is required per cabinet.
NTAK75 or NTAK76 battery units
Two battery units are available. The NTAK75 supplies a minimum of two
hours backup at full load, while the NTAK76 supplies a minimum of fifteen
minutes backup at full load.
CAUTION
Always follow the manufacturer’s instructions when installing
batteries.
Table 64
Reserve battery requirements
Sealed cells
Cell float voltage
String float voltage
23
2.30 — 2.36
52.95 — 54.25
24
2.20 — 2.26
52.95 — 54.25
Содержание Meridian 1 Option 11C Mini
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Страница 8: ...Page 8 of 544 Contents 553 3011 100 Standard 14 00 January 2002 ...
Страница 10: ...Page 10 of 544 About this guide 553 3011 100 Standard 14 00 January 2002 ...
Страница 86: ...Page 86 of 544 Memory Storage and CPU capacity 553 3011 100 Standard 14 00 January 2002 ...
Страница 176: ...Page 176 of 544 Transmission parameters 553 3011 100 Standard 14 00 January 2002 ...
Страница 196: ...Page 196 of 544 Spares planning 553 3011 100 Standard 14 00 January 2002 ...
Страница 226: ...Page 226 of 544 System Controller cards 553 3011 100 Standard 14 00 January 2002 ...
Страница 260: ...Page 260 of 544 The TDS DTR card 553 3011 100 Standard 14 00 January 2002 ...
Страница 282: ...Page 282 of 544 M2317 Telephone 553 3011 100 Standard 14 00 January 2002 ...
Страница 308: ...Page 308 of 544 Meridian Modular Telephones 553 3011 100 Standard 14 00 January 2002 ...
Страница 312: ...Page 312 of 544 M3900 telephone series 553 3011 100 Standard 14 00 January 2002 Figure 40 M3901 Figure 41 M3902 ...
Страница 364: ...Page 364 of 544 M2250 Attendant Console 553 3011 100 Standard 14 00 January 2002 ...
Страница 368: ...Page 368 of 544 NT8D02 and NTDK16 Digital Line Cards 553 3011 100 Standard 14 00 January 2002 Figure 55 NTDK16 DLC ...
Страница 388: ...Page 388 of 544 NT8D14 Universal Trunk Card 553 3011 100 Standard 14 00 January 2002 ...
Страница 408: ...Page 408 of 544 NT5K21 XMFC MFE card 553 3011 100 Standard 14 00 January 2002 ...
Страница 414: ...Page 414 of 544 NTAG26 XMFR card 553 3011 100 Standard 14 00 January 2002 ...
Страница 422: ...Page 422 of 544 NT6D71 UILC line card 553 3011 100 Standard 14 00 January 2002 ...
Страница 438: ...Page 438 of 544 NT1R20 Off Premise Station OPS analog line card 553 3011 100 Standard 14 00 January 2002 ...
Страница 492: ...Page 492 of 544 NTAK79 2 0 Mb PRI card 553 3011 100 Standard 14 00 January 2002 ...
Страница 512: ...Page 512 of 544 NTAK20 clock controller 553 3011 100 Standard 14 00 January 2002 ...
Страница 518: ...Page 518 of 544 NTAK93 D channel handler interface 553 3011 100 Standard 14 00 January 2002 ...
Страница 544: ...Page 544 of 544 Index 553 3011 100 Standard 14 00 January 2002 ...
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