Juniper MX2010 Hardware Manual page 203

Table 62 on page 182
power per PSM, and power efficiency.
Table 62: Calculating AC Power Budget
Power Distribution
Module
Three-phase delta
AC PDM (2 per
system)—50 A feed
(input #1), and 25 A
feed (input #2)
Three-phase wye AC
PDM (2 per
system)—30 A feed
(input #1), and 15 A
feed (input #2)
3. To calculate necessary input power for three-phase delta AC PDM, follow the procedure below (see
Figure 69 on page 182).
Figure 69: AC PDM Three-Phase Delta Input Power
AC PS_0
2800W
input
A1
B1
C1
AC PSM VIN=200-240 single phase:
a. Two AC PSMs are connected in parallel between two lines.
b. Nominal value of input current for one AC PSM is 2800 W / 200 V = 14 A.
lists the three-phase delta and wye feed requirements, maximum input and output
Typical Input Maximum Input
Power per PSM Power per PSM
2142 W 2800 W
2142 W 2800 W
AC PS_3 AC PS_1 AC PS_4
2800W 2800W 2800W
input input input
AC PS_2
2800W
input
AC PS_5
2800W
input
Maximum
Output Power
per PSM
2500 W
2500 W
AC PS_6 AC PS_7
2800W 2800W
input input
AC PS_8
2800W
input
Power Supply
Module Efficiency
91%
91%
A2
B2
C2
182