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Installation Notes for Catalyst 3750-E, Catalyst 3560-E Switches and RPS 2300 Power Supply Modules
78-17570-01
Power Supply Module Installation
Installing a DC-Power Supply (Only Catalyst 3750-E and 3560-E Switches)
To connect the switch to a DC-input power source, follow these steps:
1. Preparing for Installation, page 8
2. Grounding the Switch, page 9
3. Installing the DC Power Supply in the Switch, page 10
4. Wiring the DC-Input Power Source, page 11
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 terminal block plug.
Statement 122
Warning
Before connecting or disconnecting ground or power wires to the chassis, ensure that power is
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. Use a voltmeter to test for 0 (zero) voltage at the
power terminals on the chassis.
Statement 196
Warning
This product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure that
the protective device is rated not greater than: 15 A.
Statement 1005
Note The grounding architecture of this product is DC-isolated (DC-I).
Preparing for Installation
Obtain these necessary tools and equipment:
• Ratcheting torque screwdriver with a number-2 and a number-1 Phillips head that exerts up to
15 pound-force inches (lbf-in.) or 240 ounce-force inches (ozf-in.) of pressure.
• Panduit crimping tool with optional controlled-cycle mechanism (model CT-720, CT-920,
CT-920CH, CT-930, or CT-940CH).
• Wire-stripping tools.
• 12-gauge copper ground wire (insulated or noninsulated) when using the single-ground connection.
• 6-gauge copper ground wire (insulated or noninsulated) when using the dual-ground connection.
• Ground lug screw and lug ring in the switch accessory kit. For a dual ground connection, also use
the dual-ground adaptor and dual-hole lug from the DC power supply accessory kit.
• Four leads of 16-gauge copper wire.
• Four round eyelet terminals or four fork-type terminals from the DC power supply accessory kit.