ADC Telecommunications Inc. SP0700UH User Manual

ADCP-75-348 • Issue 1 • 04/2008

© 2008, ADC Telecommunications, Inc.

Removing the power supply will disable the Host Unit and interrupt service. Notify the NOC or 
alarm monitoring system operator that the system will be out of service for a period of time. 

1. Before working on the HU or handling a power supply, slip on an Electro-Static Discharge 

(ESD) wrist strap and connect the ground wire to an earth ground source. Wear the ESD 
wrist strap while completing each section of the fan installation procedure. 

2. Turn power switch to the OFF position. 

3. Unplug power plug by applying pressure to the left and right side of the connector and 

pulling it straight out.

4. Loosen the two thumb screws that secure the Power Supply to the front of the HU 

enclosure. See 

.

5. Carefully withdraw the Power Supply from the enclosure. 

6. Slide replacement Power Supply into the HU chassis until it is firmly seated.

7. Secure the Power Supply to the front of the enclosure using the two thumb screws 

loosened in 

8. Plug power plug into the power connector on the front of the Power Supply. Make certain 

that it is fully seated.

Warning:  Electronic components can be damaged by static electrical discharge. To prevent 
ESD damage, always wear an ESD wrist strap when working on the HU and when handling 
electronic components. 

22396-A