Inter-Tel AXXESS Manual page 1520

Appendix D — CPC64/CPU64 Configuration
® ®
INTER-TEL AXXESS
Figure D-5. 4-Amp Power Supply Unit
ON/OFF SWITCH
Grounding Requirements
5.11 The equipment chassis must be plugged into a properly grounded AC power source.
(See SPECIFICATIONS for additional AC power requirements.) Some good ground points
include: the building's frame, a ground rod (driven a minimum of 8 ft/2.4 m), and a copper (not
PVC) cold water pipe.
5.12 The grounding wire should be 10AWG (10 gauge thickness or larger -- smaller number
gauge = larger thickness) or larger, and should not exceed 25 feet (7.5 meters) in length, to
help provide RFI/EMI protection, or should not exceed 10 feet (3 meters) in length, to help
provide both RFI/EMI and lightning protection.
5.13 To ground the system (see
1.
2.
Page D-30
MANUAL VERSION 11.0 – May 2008
Power Supply
550.0121
-
+5V
+24V
-5V
+5V
+/-5V GND
+24V
+24V GND
LIFT LEVER
TO REMOVE
Ensure that the system's AC power source is properly grounded. DO NOT defeat (or
leave floating) the ground wire in the AC power cord.
Install an AC surge/spike protector with a built-in ground lug and connect it to:
The ground lug (indicated by the symbol
a.
ment chassis.
5V
LED INDICATORS
VOLTAGE TEST POINTS
AC POWER PLUG
110/115V 4A
230/240V 2A
47-63 Hz
Figure D-6 below):
) on the left, inside wall of the equip-
4-Amp Power Supply Unit