The SBH300 supports a maximum capacity of 100 single-zone devices across the System Bus and all Zone Buses.
You can hardwire and wirelessly connect the controllers
to the SBH300, as the SBH300 supports both connection types simultaneously. To
wirelessly connect the controllers, connect the TMR coordinator to the SBH300 and
connect one TMR router to each equipment controller. One TMR coordinator supports up to
35 wireless devices. You can add an additional TMR coordinator to the SBH300 to connect
a maximum capacity of 70 wireless devices.
Note: Configure each
TMR coordinator with a different PAN ID before you wire them to the
SBH300.