Juniper MX240 Hardware Manual page 195

The following sample configuration shows an MX240 router with:
Two 16-port 10-Gigabit Ethernet MPCs with SFP+
Two SCBs with two (redundant) RE-1800x2 routing engines
High-capacity cooling system
NOTE: The high-capacity cooling system satisfies cooling requirements of MPCs, and must
be used for proper cooling.
1. Calculate the power requirements (usage) using the values in
Router" on page 186
Table 83: Sample Power Requirements for an MX240 Router
Chassis Component
Base system
High-capacity cooling system
MPC - Slot 2 -
MPC - Slot 1
SCB 1/Slot 0
SCB 0
Total output power
Output power excluding cooling system
2. Evaluate the power budget. In this step, we check the total output power against the maximum output
power of available power supply options.
as shown in Table 83 on page
Part Number
MX240BASE-AC-HIGH
FANTRAY-MX240-HC
MPC-3D-16XGE-SFPP-R-B
MPC-3D-16XGE-SFPP-R-B
SCBE2-MX with
RE-S-1800X2-8G
SCBE2-MX with
RE-S-1800X2-8G
"Power Requirements for an MX240
197.
Power Requirement
40 W
85 W
440 W
440 W
185 W
90 W
185 W
90 W
1555 W
1470 W
197