American Power Conversion Redundant Switch operation manual Troubleshooting

Page 22

Troubleshooting

Basic troubleshooting

Only trained APC technicians should open the

Redundant Switch for repair.

Electrical

Hazard

Problem

Possible Cause

Corrective Actions

 

 

 

 

 

Use a lamp with an

 

 

incandescent bulb to test

 

 

the AC power supply to

 

 

the Redundant Switch. If

The Redundant

Very low utility

the bulb lights very dimly

Switch will not

voltage, or no

or not at all, have the

turn on.

utility voltage.

utility voltage checked.

 

 

Ensure that the AC cables

 

 

are properly connected

 

 

between the Redundant

 

 

Switch and the UPSs.

 

 

 

 

 

Ensure that all cables

 

 

connections are securely

The server

 

connected.

cannot

A cabling

If there is still no

communicate

communication, connect

problem or

with the

the server directly to a

internal

attached UPS

UPS. If you can establish

Redundant

through the

communication by this

Switch fault

Redundant

direct connection, there

 

Switch

 

is an internal Redundant

 

 

Switch fault. Contact

 

 

APC Customer Support.

 

 

 

 

An Internal,

 

 

automated self-

 

All Redundant

test failure

See “Obtaining service” on

Switch LEDs

occurred; the

page 25.

are flashing

Redundant

 

 

Switch is

 

 

defective.

 

 

 

 

For computer interface port specifications, see the APC Web

site, www.apc.com.

18

APC Redundant Switch: Installation and Operation Manual

Image 22
Contents Redundant Switch APCThis manual is available in English on the enclosed CD Contents Page Before You Begin Pre-Installation Procedures Part Number Description QuantityAvailable Models Voltage Source Input Load OutputModel SU043 SU042-4Do not remove this device Model SU045-1Installation Following example shows how to attach the bracket for See Appendix a Rack-Mount Supplement Installation To the front of the Redundant Switch, connect Use two people to lift the Redundant Switch Turn on the equipment and Redundant Switch Configuration Both UPSs must be the same sine-wave modelRestart the computer on which PowerChute plus is Operation Function LED Display DescriptionYou can use a remotely operated Emergency Power Off EPO Function Status LED Indicator. The green Function Status Function Select LED Indicator. The three green FunctionLED Display Status of Source Troubleshooting Problem Possible Cause Corrective ActionsContinuously for capability to carry a load and ability to Specifications SpecificationSU043 and SU044-1 SU045 Appendix a Rack-Mount Supplement Type of Rack Hole Type Hardware Required Express or implied, including warranties of merchantability Warranty and ServiceExcept as provided herein, APC makes no warranties Fitness for a particular purpose. Some jurisdictions doWarranty and Service Life-Support Policy Page Radio Frequency Interference APC Worldwide Customer Support USA