Campbell RF407 Series, Инструкция по эксплуатации

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RF407-Series Spread Spectrum Radio
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transmission. When an RF packet fails to be acknowledged by the destination,
the radio will delay a random amount of time before resending the packet
again. A receiving radio responds to the sending radio with an ACK packet for
every radio packet it receives addressed to it with a valid CRC.
Retry Level Retry Count
None 0
Low 3
Medium 5
High 7
If the Retry Level is increased in a network with poor reception
and many nodes, latency will greatly increase, sometimes to the
point of non-operation if inundated with traffic.
11.1.9 Radio TX Power Level
This setting specifies the power level at which the RF module transmits. Levels
are approximate. The maximum TX power for the RF407, RF412, and RF427 is
250 mW (+24 dBm); for the RF422 it is 25 mW (14 dBm).
TX Power Level, dBm TX Power Level, mW
7 5
15 32
18 63
21 125
24 250
Radio installations should be performed by a professional. It is very important
that the TX power level selected and the gain of the attached antenna do not
exceed the maximum allowed ERP permitted by local regulations. Regulations
vary by country and region. As the equipment owner, you are responsible for
making sure that your installation and maintenance of the radio equipment
ensure local regulations are met. For example, in much of the United States,
FCC part 15 rules limit the 900 MHz, ISM band transmission from the RF407
and RF412 to a maximum effective radiated power of +36 dBm. If the radio is
set to transmit at +24 dBm (250 mW), the maximum gain antenna that may be
attached is 11 dBi (~8.5 dBd).
11.2 PakBus
®
11.2.1 PakBus Address
This setting specifies the PakBus ® address for this device. The value for this
setting must be chosen such that the address of the device will be unique in the
scope of the PakBus network. Duplication of PakBus addresses in two or more
devices can lead to failures and unpredictable behavior in the PakBus network.
NOTE