Cambium 450b PTP Configuration

Description:

Initial guide to creating a basic point-to-point transparent bridge link using two PMP 450b radios. 

Method:

Master Radio Configuration

Step 1:

Under Configuration > General > Region Settings configure the region and country code (this should be the same on both master and slave radios):

Step 2:

Under Configuration > Radio > Device Type configure the radio for Backhaul Mode. After saving the changes, configure the radio to be the Timing Master:

Step 3:

After performing a reboot, configure the desired radio frequencies, channel width, and colour code under Configuration > Radio > Radio Configuration, and configure the desired downlink ratio and transmit power under Configuration > Radio > Frame Ratio and Power Control:

NOTE: The transmit power and frequencies may require adjusting when deploying the link in the field as the RF environment will be different to that of the configuration bench.

Step 4:

Under Configuration > IP > LAN1 Network Interface Configuration configure the desired IP address, subnet mask, and default gateway for the radio. DNS server IP addresses can also be set here:

Ensure you also Enable the default alternative LAN1 IP Address

Step 5:

Under Configuration > Time configure up to three NTP servers for a network time source for the radio, or alternatively set the time and date manually:

Step 6:

Under Configuration > SNMP > Site Information configure the device name, location and site contact:

Slave Configuration

Step 1:

Under Configuration > General > Region Settings configure the region and country code (this should be the same on both master and slave radios):

Step 2:

Under Configuration > Radio > Device Type configure the radio for Backhaul Mode. After saving the changes, configure the radio to be the Timing Slave:

Step 3:

Under Configuration > Radio > Radio Configuration select the frequencies and channel width used for operation – these settings must match the frequencies and channel width configured on the master radio:

Configure the desire transmit power under Configuration > Radio > Power Control:

NOTE: The transmit power and frequencies may require adjusting when deploying the link in the field as the RF environment will be different to that of the configuration bench.

Step 4:

Under Configuration > IP > LAN1 Network Interface Configuration configure the desired IP address, subnet mask, and default gateway for the radio. DNS server IP addresses can also be set here:

Step 5:

Under Configuration > Time configure up to three NTP servers for a network time source for the radio, or alternatively set the time and date manually:

Step 6:

Under Configuration > SNMP > Site Information configure the device name, location and site contact:

The link should now come up between both Master and Slave radio. This can be verfied under Home > General Status > Timing Slave Stats: