Juniper MX2020 Hardware Manual page 36

Figure 3: Rear View of a Fully Configured DC-Powered MX2020 Router Chassis
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Remove field replacement units (FRUs) from the rear of the MX2020 router before you install the router.
See Table 5 on page 10
Table 5: Rear Components in a Fully Configured DC-Powered MX2020 Router
Component No. Component Description
1 Upper fan trays (two)
2 DC PDM
3 DC PSM
4 PSM air filter
5 DC PDM
6 DC PDM
7 DC PSM
8 PSM air filter
for information on MX2020 router components.
Slots
Fan tray 2 and fan tray 3
(behind cage door)
PDM3/Input1
9 through 17
–
PDM2/Input0
PDM1/Input1
0 through 8
–
Number of FRUs
2
1
9
1
1
1
9
1
10