EH-500/600 Installation Manual
Page 31
2.10.1 Performing the Alignment
1. Verify that both ODUs are in Adaptive mode.
2. Verify that the Elevation (1) and Azimuth (5) Lock Bolts are unlocked and
positioned at 0 degrees.
Coarse Alignment (Azimuth Only)
3. Verify visually that the ODU is pointing to remote site. Optimize the coarse
alignment by turning the mounting bracket. Once optimum achieved, fasten the
worm-clamp to secure the bracket to the mounting pole.
Fine Alignment
4. Read the receive level (RSSI) using the DVM. The voltage reading will be
between 0 to 1Vdc, indicating the RSSI in dBms (for example 0.45V=-45dBm).
Voltage reading on the RSSI will be available ~1 minute after switching the ODU
to Alignment Mode.
5. Perform fine Azimuth and Elevation alignment using the fine adjustment bolts,
identifying the main lobe until the expected receive level is achieved (within +/-
4dB). Align the ODUs in turns till optimal alignment.
6. Once the optimum position achieved, tighten the azimuth and elevation lock
bolts on first ODU.
7. Use the DVM to verify that the received signal level has not degraded during
locking.
8. Repeat steps 5-6 on the second ODU.
Antenna alignment is now complete.
2.11 Link Up Verification
1. Disconnect the DVM.
2. Reboot both ODUs by disconnect/reconnect the power.
3. Following this action, and after the ODU has finished rebooting, the RF LED color
indicator on both ODUs will turn Green, indicating that the radio link is up.
The EtherHaul link can now pass traffic and management between the ports and over
the radio link.
Use the Web-based management or Command Line Interface for radio link configuration
and monitoring.
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