Campbell Scientific RF401-series and RF430-series Spread Spectrum Data Radios/Modems - Manual (Page 39)

RF401-series and RF430-series Spread Spectrum Radio/Modems
5.1.2.9 Power Modes
The radio’s average idle current can be set with the following Standby Modes
(default setting shaded):
TABLE 5-1. Standard Setup Menu
Duty
Cycle
DevConfig
Setting
Advanced
Standby
Mode
Maximum
Response
Delay*
100% < 24 mA – always on 0 100 ms
17% < 4 mA ½ sec 4 600 ms
4% < 2 mA 1 sec 6 1100 ms
2% < .4 mA 8 sec 7 8100 ms
*Maximum time it takes to get an RF Packet sent and for the other radio to
respond.
The Standard Setup standby modes automatically configure:
• Time of Inactivity to Sleep
• Time of Inactivity to Long Header
• Long Header Time
The default mode is the Standard Setup menu selection of “< 4 mA and ½ sec
Cycle.” There are standby modes available in addition to those in the above
table. They can be accessed in the Advanced Setup menu; however, if you
configure one of those, it will be necessary to also configure each of the three
bulleted parameters above. In any case, be sure to select the same Standby
Mode for all of the radios in the network. For more details see Appendix B.4,
Advanced Setup Standy Modes.
5.1.2.10 Retry Level
For point-to-multipoint networks, the retry level must be set to
none if an RF401 radio has an operating system of OS3 or lower
and the protocol setting is Transparent.
There are four Retry Level settings available in DevConfig (seeTABLE 5-2).
All radios in the network should be configured for the same Retry Level. The
default setting is Low (RF401 radios with OS4 or higher and RF430 radios) or
“None” (RF401 radios with OS3 or lower). Further choices are available in the
Advanced Setup menu (see Appendix B.2, Error Handling and Retries).
TABLE 5-2. Standard Retry Levels
Retry
Level
Maximum
Retries
Time-Slots for
Random Retry
Bytes Transmitted
Before Delay
None 0 0 65535
Low 3 1 400
Medium 5 2 400
High 7 3 400
NOTE
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