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Non-blocking Architecture; Power Failure Transfer; Power On Maintenance - Panasonic DBS576 Section 700 Technical Manual

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Section 700 - Operation

Non-Blocking Architecture

Description
The System is totally non-blocking. All extension and outside lines are available for use at the same
time.
Hardware Requirements
The CPC96 supports up to 96 ports. The CPC288 supports up to 288 ports and should be
combined with time switch card TSW288. The CPC-576 supports up to 576 ports and should be
combined with time switch card TSW576.
Related Programming
N/A
Considerations
N/A

Power Failure Transfer

Description
Power Failure Transfer provides telephone service to a limited number of Single Line Telephones
(SLTs) during a power failure. The SLTs are connected to the CO via a Power Failure Unit (PFU). In
the event of a power failure, the power failure extensions have dial tone directly from the CO.
(System features and restrictions do not apply.)
Hardware Requirements
PFU (VB-43703)
An SLT that will be connected to the PFU.
Related Programming
N/A
Considerations
Up to four SLTs can be connected to one PFU.
For added protection against power outages, backup batteries can be installed in the System.
Backup batteries provide full telephone service and system features to all System extensions for
a limited amount of time. With maximum traffic, the backup batteries last up to 30 minutes.

Power On Maintenance

Description
The System allows you to change most circuit cards, programming, and many other maintenance
features while the System is powered on and operating. Very few operations require the System to be
576-20-700
DBS 576 (USA), issued January 1999
Chapter 3. System Features
61

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