Communications, Inc. Switch User Manual

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GE/AR80 Installation Manual

580-00519, rev A 32 of 40

Errors00

QUAL Voltage (V)

3.3

3.0

1.5

1.0

0.5

ERRORS

UNCORRECTED

ERRORS (POST-FEC)

Correctable Errors Detected

Uncorrectable Errors Detected

Deframer Unlocked

CORRECTED

ERRORS

(PRE-FEC )

Figure 3-16 Quality Voltage Graph

• Quality Voltages between 3.0V and 3.3V indicate an error-free wireless link.

• Quality Voltages between 1.5V and 3.0V indicate a low rate of errors that the

forward error correction will correct. The lower the voltage, the more errors are

being corrected.

• Quality Voltages between 0.5V and 1.0V indicate excessive errors in the wireless

link that cannot be corrected by the FEC. To indicate this change in error

performance, the quality voltage will drop from 1.5V to 1.0V in a single step.

• Quality Voltages below 0.5V indicate an unlocked deframer condition. This will

be recognized as a link-down condition.

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