Reference Manual

2. Basic Radio Programming and Setup
FGR3
User-Reference Manual
LUM0110AA Rev Jan-2019 Page 42 of 143 Copyright © 2019FreeWave
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2.3. Establishing Communication with Other Radios in the
Network
For the radios in the network to communicate successfully, the radios need to be told what other
devices are available for them to communicate with. Use one of these options:
l Network ID - Used in MultiPoint Networks, the Network ID parameter is available on the
MultiPoint Parameters tab.
l Each radio in a single network should be assigned the same ID.
l A Slave links with the first Master or Repeater that it hears that has a matching Network
ID.
l Because the Network ID does not use serial numbers, MultiPoint Masters and
Repeaters may be replaced without reprogramming all of the Slaves in the network.
The Network ID function should be used in conjunction with the Subnet ID feature (if
necessary) to route data through the radio network.
l Without having the serial numbers in the Call Book, Slaves may establish
communications with different Masters that match the radio's golden settings
described below, though not at the same time. This is very useful in mobile MultiPoint
applications.
l For information about setting the Network ID parameter in a MultiPoint Network, see
Using the Network ID in MultiPoint Networks (on page 69).
l Call Book - The Call Book is required in Point-to-Point networks.
l The Call Book stores serial numbers of other radios in the network that are allowed to
talk to a radio.
l Using the Call Book offers both security and flexibility in determining how FreeWave
radios communicate with each other.
FREEWAVE Recommends: While the Call Book is an option in Point-to-MultiPoint networks,
FreeWave strongly recommends using the Network ID feature in most applications.
If a large MultiPoint network is implemented using the Call Book and a radio needs to be added to or
replaced in the network, each radio in the network must be physically reprogrammed and the new
serial number entered in the radio's Call Book.
This can be a time consuming process and can cause a delay in getting the network back up and
running.
Because the Network ID does not use serial numbers, MultiPoint Master radios and Repeaters may
be added or replaced without reprogramming each Slave radio in the network.
Note: For more information about defining the Call Book in a Point-to-Point network, see Using the
Call Book in Point-to-Point Networks (on page 93).