User Manual

Basic Configuration via Browser Interface
Trango Broadband Wireless — User Manual Access5830 Rev. D
Page 14
b) ACT LED
Red: Link and Activity. Illuminated when a link is established. Will blink when link activity is detected.
c) RSSI LEDs (4)
In all modes except “Survey”, the unit’s four yellow LEDs shall indicates the level of RF
signal being received from a valid AP.
Yellow LED 1 (leftmost): On when RSSI is greater or equal to –85 dBm
Yellow LED 2 : On when RSSI is greater or equal to –75 dBm
Yellow LED 3 : On when RSSI is greater or equal to –65 dBm
Yellow LED 4 (rightmost): On when RSSI is greater or equal to –55 dBm.
If no signal is detected the LEDs will not be on at all.
In addition, these 4 LEDs shall flash once to indicate the 'factory reset' button has been
activated.
d) ASSOCIATION LED(green): Blinking at:
Once every second when unit is powered on but opmode is OFF
Twice per second while in SU opmode and scanning for an AP.
Solid after unit is associated with an AP.
Figure 4-1 Bottom of M900S Radio with LEDs
Insert new LED picture here
Evaluate Link Quality
It takes approximately 60 seconds for the radios to complete the boot-up cycle, which includes switching on the Opmode,
handshaking, and association. If the AP is busy servicing many SUs, the association process may take slightly longer. The radio’s
firmware includes several useful tools to assist in determining which SUs are associated, and the quality of each link. One method for
verifying link quality is by using the Link Control page.
Insert Link Control Page Here
On this page the user can immediately see which SUs have associated. In the page shown, SU ID# 107 is associated, and SU IDs 11,
22, 33, and 44 are not. Consider "Power Off" status synonymous with "not associated."
Powerleveling takes place automatically every time an SU associates, so in most cases it is not necessary to manually run
powerleveling. Power leveling is described in the deployment section of this manual.
RF Link Loopback Test
The RF Link Loopback test in one of the built-in tools for evaluating
the quality of the wireless link. Specify an SU ID and time in
minutes to conduct the test. The test is prioritized, so it will take
precedence over all other traffic. 1600 byte packets are sent and
received between the SU and AP at 50 millisecond intervals over
the time specified. The success rate, and number of packets in
bytes is reported for SU and AP Received.