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Chapter 3 Indoor Equipment Maintenance
Redline Communications Inc. Confidential and Proprietary
Setting the Required Wireless Interface Parameters
The following wireless interface parameters affect transmitter timing and must be set to the
same value on each of the sector controllers in all geographically, co-located cells:
•
Frame Duration (ms)
•
Frame Downlink ratio (%)
•
Cell Range (km)
Determine the correct settings and ensure all of the sector controllers are configured
correctly before performing any of the following steps.
Step 1
Login to the Web client as outlined in “Connecting to the Sector Controller Web Client” on
page 2-4.
Step 2
Click Wireless Interface in the menu to view the MAC parameters.
Step 3
Update the values of Frame Duration (ms), Downlink ratio (%) and Cell Range (km).
Step 4
Click the Save button to save these changes.
Step 5
Reboot the sector controller as outlined in “Rebooting the Devices” on page 3-2.
This can also be done from RMS by modifying the device configuration for the impacted
network from the Topology tree. You can also create and apply device configuration
templates. Refer to the Redline Management Suite User Guide for details.
Configuring the Master Sector Controller for GPS Synchronization
If a GPS signal is detected at startup, the Master with GPS immediately synchronizes its
clock to this signal and then enables the Master capability and sends synchronization
pulses to all connected Slaves. If the GPS signal is not detected at startup, the Master
capability is not enabled and the sector controller does not send synchronization pulses.
If the GPS signal is detected while the Master with GPS is operating asynchronously
(startup completed but master function not enabled), the Master with GPS transitions its
clock to match the external GPS signal and then enables the master capability and sends
synchronization pulses to slaves.
Identify the sector controller that is currently the local master clocking source. It should be
clearly labeled in the rack.
Change the master sector controller Synchronization Mode from Master to Master with
GPS Sync.
Step 1
Log into the sector controller that is currently the local master clocking source, as outlined
in “Connecting to the Sector Controller Web Client” on page 2-4.
Step 2
Click Wireless Interface in the menu to view the MAC parameters.
Step 3
Set the Synchronization Mode to Master with GPS.
Step 4
Click the Save button to save these changes
Step 5
Reboot the sector controller as outlined in “Rebooting the Devices” on page 3-2.