Router (Ac Model); Erx-310 Router (Ac Model) - Juniper E Series Hardware Manual

3. Remove the nuts and locking washers from the posts for the power input (A or
B) using a small insulated adjustable wrench.
4. Place one negative (neutral) cable lead on the post labeled –48 VDC.
5. Replace the locking washers and nuts, and tighten the nuts to secure the
connection.
6. Place the other cable lead on the post labeled RTN.
7. Replace the locking washer and nut, and tighten the nut to secure the
connection.
8. Attach the opposite end of Power A's wire leads to the appropriate leads on your
power source.
To provide redundancy, Power A and Power B leads should not terminate at
NOTE:
the same power source.
9. Place the clear plastic guard over the terminal posts, and secure it in place by
tightening the four screws.
10. Repeat steps 1–9 for each power input module in your configuration.
Figure 32: ERX-310 router, rear view (DC model)
Power A DC power
input A
leads
Ground

ERX-310 router (AC model)

1. Insert the power cord into the AC power IEC receptacle (see Figure 33).
2. Insert the other end of the power cord into an appropriate AC power source.
To provide redundancy, Power A and Power B leads should not terminate at
NOTE:
the same power source.
3. Repeat steps 1–2 for the other power input module, if needed.
DC power
input B
Power A
switch
Cabling the E-series Router for Power
Chapter 6: Cabling E-series Routers
Power B
switch
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