Power Failure Transfer; Power On Maintenance - Panasonic S-ICX Technical Manual

Section 700 - Operation
Hardware Requirements
• ICX: The CPC-96 supports up to 96 ports. The CP-288 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.
• S-ICX: The CPC-HS supports 78 (max. 32 extensions). The CPC-HM supports up to 132 ports
(max. 64 extensions).

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/Exchange line via a Power Failure
Unit (PFU). In the event of a power failure, the power failure extensions have dial tone directly from
the CO/Exchange line. (System features and restrictions do not apply.)
Hardware Requirements
• PFU (VB-43703)
• An SLT that will be connected to the PFU.
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 in the
ICX and 15 minutes in the S-ICX.

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
powered down or out of service. The System therefore continues to operate without interruption for
most maintenance functions.
A limited number of items such as the replacement of some common control circuit cards requires the
system to be powered down.
ICX-40-700 ICX (International) issued December 1999
Chapter 3. System Features
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