Panasonic ICX Manual

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Section 700 - Operation
Chapter 3. System Features
ICX-35-700
ICX (International), issued March/1998
 55
Hardware Requirements
T1 (USA), E&M (HK) or AC-15 (UK) Card
Considerations
N/A
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. 
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 trunk via a Power Failure Unit (PFU). In 
the event of a power failure, the power failure extensions have dial tone directly from the trunk. 
(System features and restrictions do not apply.)
Hardware Requirements
Power Failure Unit (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.