Issue 6
Electra Elite
5 - 10
Installing Electronic Telephone Units
3.3.5
Replacing Memory Backup
The MBD-U10 Unit provides memory backup for
approximately 21 days. The Ni-Cad battery should be
replaced about every two years. Refer to
Figure 5-8 KSU
Backup Battery Replacement
.
1.
Remove the battery cable from CN4 on the
MBD-U10 Unit.
2.
Connect the cable from the new battery to CN4 on
the MBD-U10 Unit.
3.
Turn off the KSU power.
4.
Use cutting tool to cut the tie wrap that fastens it,
and remove the old battery.
5.
Fasten the new battery with a tie wrap.
6.
Turn on the KSU power.
Figure 5-8 KSU Backup Battery Replacement
Summary of Contents for ElectraElite 48
Page 2: ...SYSTEM HARDWARE MANUAL Stock Number 750376 Issue 6 Series 8000 48 ...
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Page 10: ...Regulatory Information ...
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Page 56: ...1st Tab Chapter 1 Introduction ...
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Page 78: ...2nd Tab Chapter 2 System Specifications ...
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Page 102: ...3rd Tab Chapter 3 Hardware Requirements ...
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Page 110: ...4th Tab Chapter 4 Installing the KSU ...
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Page 136: ...5th Tab Chapter 5 Installing Electronic Telephone Units ...
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Page 256: ...6th Tab Chapter 6 Installing Electra Elite Multiline Terminals ...
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Page 290: ...7th Tab Chapter 7 Installing Optional Equipment ...
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Page 344: ...8th Tab Chapter 8 Installing Dterm Series i Equipment ...
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Page 358: ...Electra Elite Issue 6 System Hardware Manual 8 13 Figure 8 15 Removing the Line Panel ...
Page 396: ...9th Tab Chapter 9 Installing Electra Professional Equipment ...
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Page 404: ...10th Tab Chapter 10 System Maintenance ...
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Page 428: ...11th Tab Appendices ...
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Page 434: ...SYSTEM HARDWARE MANUAL NEC America Inc Issue 6 Series 8000 48 ...
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