User's Manual

70 Commissioning
Chapter 3 - Commissioning
3.3.3 Using SAU for Aligning the PRO-S CPE's
Antenna
The LINK QUALITY bar display on the SAU comprises 9 LEDs:
 The WLNK LED indicates that the wireless link is active, and is lit when the SU
has completed the Network Entry process.
 LEDs 1 to 8 (green) and 9 (red) indicate the quality of the received signal. The
higher the number of LEDs illuminating, the better the quality of the received
signal.
 If all LEDs, including LED 9 (red) are on, the received signal strength is too
high. This must be avoided, preferably by up-tilting the antenna. As a rule of
thumb, if the SU is located at a distance of less than 300 meters from the Base
Station, it is recommended to up-tilt the antenna by approximately 10° to 15°.
Table 3-3: SAU LINK QUALITY LEDs Functionality
Bar LEDs SNR
LED 1 (green) is On 5dB ≤ SNR < 10dB
LEDs 1-2 (green) are On 10dB ≤ SNR < 15dB
LEDs1-3 (green) are On 15dB ≤ SNR < 20dB
LEDs 1-4 (green) are On 20dB ≤ SNR < 24dB
LEDs 1-5 (green) are On SNR ≥ 24dB and RSSI < -75dBm
LEDs 1-6 (green) are On SNR ≥ 24dB and RSSI ≥ -75dBm
LEDs 1-7 (green) are On SNR ≥ 24dB and RSSI ≥ -70dBm
LEDs 1-8 (green) are On SNR ≥ 24dB and RSSI ≥ -60dBm
LEDs 1-8 (green) and 9 (red) are On RSSI ≥ -20dBm (saturation)
LEDs 1 - 8 Blinking one after the other During full frequency scan
LEDs 1 - 9 Blinking as follows: LED 5 lights,
after 200ms LEDs 4 & 6 light, after 200ms
LEDs 3&7 light, after 200ms LEDs 2&8
light, after 200ms LEDs 1 lights, after
200ms all the LEDs are extinguished and
then the sequence is repeated.
During Best AU selection process or short scan
To align the antenna: