Diagnostics

10

Have the customer inspect and verify that facility power is within specifications. These specifications are:

•One single-phase connection for each power supply.

•Input power between 120 and 230 Vac.

•Input current between 2 and 4 amps.

•Input frequency between 47 and 63 Hz.

Is facility power within specifications?

YES NO

↓Ask the customer to correct the facility power problem. When facility power is corrected, verify switch temperature cools to within the operational limit.

11

Inspect the fans. Do one or more fans appear to rotate at insufficient angular velocity (failure pending)?

NO YES

↓Remove and replace the affected fan ("RRP: Cooling Fan" on page 4-6or. After fan replacement, verify switch temperature cools to within the operational limit.

A power supply problem is indicated. Go to "MAP 0100: Power Distribution Analysis" on page 2-26.

12

An SBAR module is not recognized by switch firmware because the firmware version is not supported or the SBAR module failed. Advise the customer of the problem and determine the correct firmware version to download from the HAFM server.

Download the firmware ("Download a Firmware Version to a Switch" on page 3-45). Perform the data collection procedure after the download.

Continue.

13

Did the firmware download solve the problem?

NO YES

↓The switch appears operational.