Avaya AP-4, AP-6, AP-5 manual Link Test

Link Test

—SNR (dB): The Signal to Noise ratio for the received signal. The displayed value is the running average since the start of the test and is reported in decibels (dB). Higher numbers correspond to a stronger link. The bar graph also displays the relative strength of the link (a green bar indicates a strong link, a yellow bar indicates a fair link, and a red bar indicates a weak link).

—Signal (dBm): The strength of the received signal in dBm (decibels referenced to 1 milliwatt). The displayed value is the running average since the start of the test and is reported as a negative number. Higher numbers correspond to a stronger link. For example, -40 dBm corresponds to a stronger signal than -50 dBm. The bar graph also displays the relative strength of the signal (a longer bar represents a stronger signal).

—Noise (dBm): The strength of the noise detected at the receiver reported in dBm (decibels referenced to 1 milliwatt). The displayed value is the running average since the start of the test and is reported as a negative number. Noise can interfere with the received signal so a smaller noise value corresponds to a stronger link. For example, a noise level of -95 dBm is more desirable than a noise level of -89 dBm. The bar graph displays the relative strength of the noise level (a shorter bar represents a weaker noise level and is more desirable than a longer bar).

Avaya Wireless AP-4/5/6 User’s Guide 5-17