Page 2-24
Specifications
INTER-TEL
®
AXXESS
®
MANUAL VERSION 11.0 – May 2008
Voltage Surge and Spike Protection
Voltage Surge and Spike Protection
4.51 To reduce the effects of AC voltage surges and spikes that may cause system malfunc-
tions, false logic, and/or damage to the electronic components, a surge/spike protector with the
following specifications is recommended:
• Clamp voltage transients at 300VDC within five nanoseconds when exposed to wave-
forms as described in the ANSI/IEEE Standard C62.41-1980 (IEEE 587).
• Reduces RFI/EMI noise by at least 20 dB at frequencies between 5 kHz and 30MHz.
• Ground lug for grounding Single-Line Adapters, trunk gas discharge tubes, etc. to the
chassis AC outlet.
4.52 Inter-Tel’s CommSource
™ division or Inter-Tel Europe sells a surge/spike protector
(part number 900.0500) that meets all of these specifications.
Battery Back-Up
4.53 To provide back-up power in the event of a power failure or brownout condition, the
power supply can have optional battery back-up using a customer-provided uninterruptable
power supply (UPS) unit or a standby power supply (SPS) unit. See page 2-104 for more infor-
mation.
NOTE: The CP Server PC should be connected to the same type of surge protector and bat-
tery backup unit as the chassis. System operation is dependent on both the PC and the chassis
being operational.
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