User's Manual

Radio Operation
Crescendo UHF Half-Duplex User Manual Page 27 of 78
When allocating radio addresses, a recommended convention is to reserve the first two decimal digits as the
subnet number, and the last three digits for individual radios residing within the subnet. For example,
consider the scenario shown in Figure 5, and the address allocation given in Table 12.
Subnet
Subnet
Address
Radio
Radio Address
Base subnet
1
Base
1000
Remote 1
1001
Remote 2
1002
Repeater
subnet
27
Store-and-forward
Repeater
27000
Remote 3
27001
Remote 4
27002
Table 12: Addressing for a tree network topology
Following this convention can reduce the complexity of implementing routing tables.
A subnet should not be confused with co-located networks (see section 5.4.2). All units on the base and
repeater subnets should have the same network address. For more on store-and-forward repeaters see section
5.4.3 on page 28.
5.4.2 Network Address
The network address is a high level address used to differentiate between co-located networks. For a unit to
send to or receive from another unit, their network addresses must match. A co-located network should not
be confused with a base or repeater subnet (see section 5.4.1)
Figure 6 shows an example of two co-located networks. In this example all units that are a part of network A
should have the same network address, and all units in network B should share a different network address.