E-series Hardware Guide
64 ! Cabling the E-series Router for Power
Task 2: Connect the Grounding Cables
All E-series routers have two grounding studs located in the rear of the chassis, near
the power inputs. Each stud provides grounding for a single power unit.
To ground each power unit:
1. Locate the grounding studs on the E-series router (see Figure 31 and Figure 32).
2. Remove the nuts and locking washers from the grounding studs.
3. Place the grounding cable lead on one of the grounding studs and tighten the
nuts to secure the connection.
4. Connect the other end of the ground cable to the appropriate ground
termination lead.
5. Repeat steps 3–4 for the remaining grounding stud.
Task 3: Connect the Power Cables
To connect power cables to an E-series router, follow these steps. Refer to Figure 31,
Figure 32, and Figure 33 as needed.
ERX-7xx models, ERX-14xx models, ERX-310 router (DC model)
1. Be sure you have completed Task 1 and Task 2 in the previous sections.
2. If applicable, loosen the screws from the clear power input module cover and
remove it.
NOTE: We recommend a minimum of 10-AWG ground wire with a ring style
terminal.
NOTE: When grounding an E-series router, leave a service loop in the grounding
cable to ensure that the grounding cable is the last cable to disconnect from the
shelf if strain is placed on the electrical cables.
CAUTION: Before you begin this procedure, ensure that all power switches are in
the OFF position.
WARNING: Be sure the power source is turned off, the E-series router is turned off,
and proper grounding wires are attached before continuing with this procedure.
WARNING: The wiring color code of the power cables depends on the color coding
of the DC power source installed at your site. Color code standards for DC wiring
do not exist. To ensure that the correct polarity is connected to the E-series router
power units, confirm the connection of the power cables to the + (positive) and
– (negative) leads at the power source.
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