Campbell Scientific AVW200 AVW200-series Vibrating Wire Interfaces - Page 30

Multiplexer Wiring, 4.5.1 AVW200 Controlling the Multiplexer

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AVW200-series 2-Channel Vibrating Wire Spectrum Analyzer Modules Wireless communication requires the appropriate spread spectrum radio to be connected to the datalogger (see TABLE 4-3). DevConfig is used to configure the AVW206, AVW211, or AVW216 for RF communications (Section 5.1, Connecting to DevConfig, and Section 5.2.1, Communications). TABLE 4-3. Datalogger to Spread Spectrum Radio Connections Vibrating Wire Interface Model AVW206 AVW211 AVW216 Required Spread Spectrum Radio Model RF401 RF411 RF416 Cable used for datalogger to radio connection SC12 SC12 SC12 Radio Port for Cable Attachment CS I/O CS I/O CS I/O Datalogger Port for Cable Attachment CS I/O CS I/O CS I/O NOTES (1) The AVW206, AVW211, and AVW216 are not compatible with the RF450, RF400, RF410, and RF415 spread spectrum radios. (2) For communication between the vibrating wire interface and spread spectrum radio to be successful, the radio's Protocol must be set to PakBus Aware or PakBus Node. Read more! Description of our antenna options is provided in Appendix C. More information about using spread spectrum radios is provided in the RF401/RF411/RF416 Spread Spectrum Data Radio/Modem manual. 4.5 Multiplexer Wiring Wire the sensors to the multiplexer according to the multiplexer manual. Other multiplexer wiring depends on whether the AVW200 will control the multiplexer or the datalogger will control the multiplexer. 4.5.1 AVW200 Controlling the Multiplexer For most applications, it is desirable to have the AVW200 control the multiplexer. A CABLE4CBL or MUXSIGNAL cable connects to the multiplexer's COM terminals, and another CABLE4CBL cable or the MUXPOWER cable connects to the multiplexer's CLK and RESET terminals (see FIGURE 4-4). NOTE When two multiplexers are connected to the AVW200, they share the CLK and RESET lines. Because of this, while one multiplexer is making measurements, the other multiplexer will advance its channels but without making any measurements. 22

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AVW200-series 2-Channel Vibrating Wire Spectrum Analyzer Modules
Wireless communication requires the appropriate spread spectrum radio to be
connected to the datalogger (see TABLE 4-3).
DevConfig is used to configure
the AVW206, AVW211, or AVW216 for RF communications (Section 5.1,
Connecting to DevConfig
, and Section 5.2.1,
Communications
).
TABLE 4-3.
Datalogger to Spread Spectrum Radio Connections
Vibrating Wire
Interface Model
Required Spread
Spectrum Radio
Model
Cable used for
datalogger to
radio connection
Radio Port for
Cable Attachment
Datalogger Port
for Cable
Attachment
AVW206
RF401
SC12
CS I/O
CS I/O
AVW211
RF411
SC12
CS I/O
CS I/O
AVW216
RF416
SC12
CS I/O
CS I/O
(1) The AVW206, AVW211, and AVW216 are not compatible
with the RF450, RF400, RF410, and RF415 spread spectrum
radios.
(2) For communication between the vibrating wire interface and
spread spectrum radio to be successful, the radio’s Protocol must
be set to PakBus Aware or PakBus Node.
Read more! Description of our antenna options is provided in Appendix
C.
More information about using spread spectrum radios is provided in
the RF401/RF411/RF416 Spread Spectrum Data Radio/Modem manual.
4.5
Multiplexer Wiring
Wire the sensors to the multiplexer according to the multiplexer manual.
Other
multiplexer wiring depends on whether the AVW200 will control the
multiplexer or the datalogger will control the multiplexer.
4.5.1 AVW200 Controlling the Multiplexer
For most applications, it is desirable to have the AVW200 control the
multiplexer.
A CABLE4CBL or MUXSIGNAL cable connects to the
multiplexer’s COM terminals, and another CABLE4CBL cable or the
MUXPOWER cable connects to the multiplexer’s CLK and RESET terminals
(see FIGURE 4-4).
When two multiplexers are connected to the AVW200, they share
the CLK and RESET lines.
Because of this, while one multiplexer
is making measurements, the other multiplexer will advance its
channels but without making any measurements.
NOTES
NOTE
22