2-12
Cisco IE 4000 Switch Hardware Installation Guide
Chapter 2 Switch Installation
Connecting to Power
Step 6 Replace the plastic cover over the terminal block.
Step 7 Connect the other end of the wiring to your AC power source.
Connecting the Power Converter to a DC Power Source
You can also connect the power converter to a DC power source. Several power supplies can be used.
Refer to Table 2-1 on page 2-8 for the appropriate DC input ratings.
Note Use copper conductors only, rated at a minimum temperature of 167°F (75°C).
Step 1 Measure a single length of stranded copper wire long enough to connect the power converter to the earth
ground. The wire color might differ depending on the country that you are using it in.
For connections from the power converter to earth ground, use shielded 14-AWG stranded copper wire.
Step 2 Measure a length of twisted-pair copper wire long enough to connect the power converter to the DC
power source.
For DC connections from the power converter to the DC source, use 10-AWG twisted-pair copper wire.
Step 3 Using a 18-gauge wire-stripping tool, strip the ground wire and both ends of the twisted pair wires to
0.25 inch (6.3 mm) ± 0.02 inch (0.5 mm). Do not strip more than 0.27 inch (6.8 mm) of insulation from
the wires. Stripping more than the recommended amount of wire can leave exposed wire from the power
and relay connector after installation.
Step 4 Connect one end of the stranded copper wire to a grounded bare metal surface, such as a ground bus, a
grounded DIN rail, or a grounded bare rack.
Step 5 Insert the other end of the exposed ground wire lead into the earth-ground wire connection on the power
converter terminal block. Only wire with insulation should extend from the connection. See Figure 2-3,
item 1. Note that the position of the power converter may vary on different switch models.
Step 6 Tighten the earth-ground wire connection terminal block screw.
Note Torque to 8 in.-lb, not to exceed 10 in-lb.
Warning
An exposed wire lead from a DC-input power source can conduct harmful levels of electricity. Be
sure that no exposed portion of the DC-input power source wire extends from the power and relay
connector.
Statement 122
Step 7 Insert the twisted-pair wire leads into the terminal block line and neutral connections. Insert the wire
(labeled number 1 in Figure 2-3) lead into the neutral wire connection and the wire (labeled number 2
in Figure 2-3) lead into the line wire connection. Ensure that only wire with insulation extends from the
connectors. See Figure 2-3.
Step 8 Tighten the line and neutral terminal block screws.
Note Torque to 8 in.-lb, not to exceed 10 in-lb.
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