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
Summary of Contents for Meridian 1 Option 11C Mini
Page 2: ......
Page 8: ...Page 8 of 544 Contents 553 3011 100 Standard 14 00 January 2002 ...
Page 10: ...Page 10 of 544 About this guide 553 3011 100 Standard 14 00 January 2002 ...
Page 86: ...Page 86 of 544 Memory Storage and CPU capacity 553 3011 100 Standard 14 00 January 2002 ...
Page 176: ...Page 176 of 544 Transmission parameters 553 3011 100 Standard 14 00 January 2002 ...
Page 196: ...Page 196 of 544 Spares planning 553 3011 100 Standard 14 00 January 2002 ...
Page 226: ...Page 226 of 544 System Controller cards 553 3011 100 Standard 14 00 January 2002 ...
Page 260: ...Page 260 of 544 The TDS DTR card 553 3011 100 Standard 14 00 January 2002 ...
Page 282: ...Page 282 of 544 M2317 Telephone 553 3011 100 Standard 14 00 January 2002 ...
Page 308: ...Page 308 of 544 Meridian Modular Telephones 553 3011 100 Standard 14 00 January 2002 ...
Page 364: ...Page 364 of 544 M2250 Attendant Console 553 3011 100 Standard 14 00 January 2002 ...
Page 388: ...Page 388 of 544 NT8D14 Universal Trunk Card 553 3011 100 Standard 14 00 January 2002 ...
Page 408: ...Page 408 of 544 NT5K21 XMFC MFE card 553 3011 100 Standard 14 00 January 2002 ...
Page 414: ...Page 414 of 544 NTAG26 XMFR card 553 3011 100 Standard 14 00 January 2002 ...
Page 422: ...Page 422 of 544 NT6D71 UILC line card 553 3011 100 Standard 14 00 January 2002 ...
Page 492: ...Page 492 of 544 NTAK79 2 0 Mb PRI card 553 3011 100 Standard 14 00 January 2002 ...
Page 512: ...Page 512 of 544 NTAK20 clock controller 553 3011 100 Standard 14 00 January 2002 ...
Page 518: ...Page 518 of 544 NTAK93 D channel handler interface 553 3011 100 Standard 14 00 January 2002 ...
Page 544: ...Page 544 of 544 Index 553 3011 100 Standard 14 00 January 2002 ...
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