Murata Electronics North America 910M Manual Do Utilizador

Enable Global Network Mode 
For networks with multiple base stations, remotes are ordinarily only able to link to one 
base station, set by the hopping pattern.  Mode 1 enables the global mode that allows 
remotes to link to any base station they can hear, acquiring whatever hop pattern is 
required. In this mode a remote can only change base stations once it is no longer 
registered with a base station.  
 
Set Lockout Key 
Allows further network segregation beyond the network number. This feature allows 
multiple co-located networks in which global roaming or seamless roaming is enabled. In 
global and seamless roaming, a remote is allowed to link to any base regardless of the 
network number as long as the lockout key agrees. By using different lockout keys, the 
bases to which remotes link can be limited or segregated. 
 
Set Hopping Pattern 
The WIT910 has 64 preprogrammed hopping patterns (also referred to as network 
numbers).  By using different hopping patterns, nearby or co-located networks can avoid 
interfering with each other’s transmissions.  Even if both networks tried to use the same 
frequency, on the next hop they would be at different frequencies.   
 
Set Transmit Power 
The WIT910 has two preset transmit power levels, 10mW (10dBm), 100mW (20dBm) 
and 500mW (27dBm).  Control of the transmit power is provided through this command.  
Default is 100mW. 
 
Read Receive Signal Strength Indicator (RSSI) 
This command reports the relative signal strength averaged over the last 10 hops.  This 
command returns a one byte value that is proportional to received signal strength and can 
range from 

 to 

.  Typical values range from 

 to 

 where the lower the 

number the lower the received signal strength and the higher the number the higher the 
received signal strength.  This is a relative indication and does not directly correspond to 
a field strength number. This is available only at the remotes as the base station is the 
only source that transmits on a regular basis.  Plus, in a point-to-multipoint network the 
base will receive different signal strengths from each remote. 
 
Set Point-to-Point Direct Mode 
Sets point-to-point mode that is recommended for point-to-point applications, especially 
where the remote radio is mobile and may leave and re-enter the range of the base. This 
mode fixes the remote handle assignment to always be 

 and improves the re-

registration process. The point-to-point mode must be set in both base and remote radios. 
 

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