Connect The Dc-Input Power Supply Unit - Cisco SCE 1000 Quick Start Manual

Connect the DC-Input Power Supply Unit

Figure 12 Connecting the DC Power
BY PA SS
1
IN
PO W ER B
OK
IN
Before completing any of the following steps, and to prevent short-circuit or shock hazards, ensure that power is removed from
the DC circuit. To ensure that all power to the power supply unit 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.
Wiring should be done by a professional in accordance with state and local electrical codes.
Step 1 Ensure that the DC power line input leads are disconnected from the power source.
Using the number 2 Phillips screwdriver, remove the protective plate from the terminal block.
Step 2
Insert one receptacle screw into the hex or loop connector on one power line input, insert the screw with the connector
Step 3
into the corresponding lead receptacle and tighten the receptacle screw using the number 2 Phillips. Repeat for the
remaining power line input lead.
Note The color coding of the DC-input power supply leads depends on the color coding of the DC power source at your site.
Make certain the lead color coding you choose for the DC-input power supply matches lead color coding used at the
DC power source.
Use 12 AWG (2.5 mm) copper wire only with hex or loop connectors. Ring terminals must be UL approved and suitable
Note
for 12 AWG wire.
Using the number 2 Phillips screwdriver, securely fasten the protective plate to the terminal block.
Step 4
Connect the DC power line input leads to the DC power source through a fast 10A circuit breaker.
Step 5
Step 6 Turn the on/off switch to the on position.
Look at the IN and OK LEDs on the power supply unit and the corresponding Power LED on the front panel. If the
Step 7
DC-input power supply unit is operating properly, these LEDs will be glowing green.
Ensure that the power supply is properly aligned and the installation screw is tightened.
Step 8
PO W ER A
OK
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