C
HEETAH
864XR
V
IDEO
M
ATRIX
S
WITCHER
Publication 81-9059-0595-0, Rev. C
October 2010
Proprietary Information of
PESA
3-5
PRIMARY
POWER
INPUT 1
(PIGTAIL)
CHASSIS
FRAME
AC BREAKER 1
Perform voltage measurements A thru D, between the
points indicated by arrows using an AC Voltmeter. ALL
measurements must be less than, or equal to, 250VAC.
RECTIFIER MODULE 1
RECTIFIER MODULE 2
POWER FILTER MODULE
V DC OUT TO
POWER SUPPLY
MODULES
A
D
C
B
CHASSIS
FRAME
AC BREAKER 2
PRIMARY
POWER
INPUT 2
(PIGTAIL)
Figure 3-2 - Power Supply Configuration (US Models)
WARNING:
The maximum applied voltage to either of the AC power
inputs must not exceed 250VAC. In addition, the maximum applied voltage
across both AC power inputs must not exceed 250VAC at any time.
Whenever two phases of a three-phase power source are applied using
different phases on each power input, the voltage between the phases must
not exceed 250VAC. Failure to heed this warning will result in serious
equipment damage.
Figure 3-3 depicts a typical two-phase and three-phase AC line-phasing scenario. Note that in the three-
phase line voltage, each voltage phase is 120 degrees out of phase with the other two voltage phases.
