Mx2000 Single-Phase Ac Power Distribution Module Electrical Specifications; Calculating Ac Power Requirements For Mx2020 Routers - Juniper MX2020 Hardware Manual

MX2000 Single-Phase AC Power Distribution Module Electrical
Specifications
Table 65 on page 186 lists the single-phase AC power distribution module (PDM) electrical specifications
for the MX2000 line of routers.
Table 65: Single-Phase AC Power Distribution Module Electrical Specifications
Item
AC input voltage
AC input line frequency
AC input current rating
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Calculating AC Power Requirements for MX2020 Routers

The information in this topic helps you determine which of the two input ratings for the PSM is suitable
for various configurations. You determine suitability by subtracting the total power draw from the maximum
output of the PSM. Afterward, you calculate the required input current. Finally, you calculate the thermal
output.
We recommend that you provision power according to the maximum input current listed in the power
subsystem electrical specifications.
Use the following procedures to calculate the power requirement:
1. Calculate the power requirement.
2. Evaluate the power budget.
3. Calculate input power.
4. Calculate thermal output (BTUs) for cooling requirements.
Specification
Operating range: 200–240 VAC (nominal)
50/60 Hz (nominal)
14 A @ 200 VAC
186