Murata Electronics North America 2492 Manual Do Utilizador
WIT2492
2000- 2007 Cirronet
25
M-2492-0000 Rev G1
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.
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 is enabled. In global 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.
Allows further network segregation beyond the network number. This feature allows
multiple co-located networks in which global roaming is enabled. In global 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 WIT2492 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.
The WIT2492 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 WIT2492 has two preset transmit power levels, 10mW (10dBm) and 100mW
(20dBm). Control of the transmit power is provided through this command. Default is
100mW.
The WIT2492 has two preset transmit power levels, 10mW (10dBm) and 100mW
(20dBm). 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
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
00H
to
FFH
. Typical values range from
30H
to
80H
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.
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 30H and improves the re-
registration process. Must be set in both base and remote radios.
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 30H and improves the re-
registration process. Must be set in both base and remote radios.
Base DCD Mode Enable
Since the most general application for WIT radios is in a multipoint network, normally
DCD is always asserted at the base. There is an optional mode that may be enabled for
point-to-point networks by setting 'ww1'. This will assert DCD whenever one or more
remotes are registered. For point-to-point use, 'pn' should be set to 1. The default is
'ww0'.
Since the most general application for WIT radios is in a multipoint network, normally
DCD is always asserted at the base. There is an optional mode that may be enabled for
point-to-point networks by setting 'ww1'. This will assert DCD whenever one or more
remotes are registered. For point-to-point use, 'pn' should be set to 1. The default is
'ww0'.