Cisco Catalyst 2955 Hardware Installation Manual page 82

Verifying Switch Operation
Before performing any of the following procedures, ensure that power is
Warning
removed from the DC circuit. To ensure that all power is OFF, locate the circuit
breaker on the panel board that services the DC circuit, switch the circuit
breaker to the OFF position, and tape the switch handle of the circuit breaker in
the OFF position. Statement 140
Connect the unit only to DC power source that complies with the safety
Warning
extra-low voltage (SELV) requirements in IEC 60950 based safety standards.
Statement 1033
You must connect the switch only to a DC-input power source that has an input
Caution
supply voltage from 18 to 32 VDC. If the supply voltage is not in this range, the
switch might not operate properly or might be damaged.
Caution The switch must be installed with 2 A-branch-circuit protection.
This installation must comply with all applicable codes.
Caution
Note For wire connections to the power and relay connector, you must use UL and CSA
rated, style 1007 or 1569 twisted-pair copper appliance wiring material (AWM)
wire (such as Belden part number 9318).
You must also use the ferrite that ships with the switch.
To wire the switch to the optional AC/DC converter, go to the
Switch to the Power Converter" section on page
Catalyst 2955 Hardware Installation Guide
3-18
Chapter 3 Installation
"Connecting the
3-29.
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