Juniper E SERIES BROADBAND SERVICES ROUTERS 11.3.X - ERX HARDWARE GUIDE REV 26-9-2010 Hardware Manual page 24

ERX 11.3.x Hardware Guide
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Figure 5: ERX310 Router, Front View (AC Model)
NOTE: The DC model has blank filler panels in power supply slots.
Figure 6: ERX310 Router, Rear View (AC Model)
Figure 7: ERX310 Router, Rear View (DC Model)
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