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Cisco IE 3000 Switch Hardware Installation Guide
Chapter 2 Switch Installation
Verifying Switch Operation
If you are using the above Cisco PoE AC/DC power supplies, you can power up to 4 PoE or 2 PoE+
devices on each expansion module.
To attach site source DC to the expansion module:
Warning
The equipment is to be connected to a UL Listed, limited power source. Statement 170
Note
Warning statement 170 is applicable only to office/computer room environments
(IEC 60950).
Step 1
Verify that power is off to the DC circuit you are going to attach to the DC-input power supply. As an
added precaution, place the appropriate safety flag and lockout devices at the source power circuit
breaker, or place a piece of adhesive tape over the circuit breaker handle to prevent accidental power
restoration while you are working on the circuit.
Step 2
Measure a length of twisted-pair copper wire long enough to connect the site source DC to the PoE
expansion module’s Input DC terminal block.
For DC connections from the site source DC to the PoE expansion module, use 18-AWG (0.75 mm
2
)
twisted-pair copper wire, such as Belden part number 9344 or the appropriate type, wire size, and
color-code for your country.
Step 3
Using a wire-stripping tool, strip 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.
Step 4
Attach the twisted-pair wire leads into the site source DC positive (+) and negative (-) connectors. Verify
that only insulated wire extends from the connectors.
Step 5
Secure the twisted-pair leads to the source DC connectors.
Step 6
Connect the other end of the twisted-pair wire leads to the Input DC terminal block connectors on the
PoE expansion module making sure that only insulated wire extends beyond the terminal block.
Verify that the positive (+) wire goes from the source DC positive (+) connector to the positive (+)
connector on the expansion module and that the source DC negative (-) wire goes to the negative (-)
connector on the expansion module.
Step 7
Secure the twisted-pair leads to the terminal block connectors using the torque ratchet screwdriver to
tighten the expansion module terminal block screws.
Note
Do not overtighten the terminal block screws. The torque on the screws should not exceed
2.2 in-lb (0.25 Nm).
Step 8
When you are ready to power up the switch, remove the safety flag and lockout devices from the PoE
expansion module DC circuit and turn on the power to power up the module.
