Campbell SC32B Instruction Manual - 5. Application
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SC32B Optically Isolated RS-232 Interface
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5. Application
The SC32B provides a direct interface between the CS I/O port on a Campbell
Scientific datalogger and the RS-232 port on a computer. Some Campbell
Scientific dataloggers (e.g., the CR23X and CR5000) have a built-in RS-232
port in addition to the CS I/O port. With these dataloggers the SC32B is only
necessary if you wish to connect to the CS I/O port instead of the RS-232 port.
The SC32B blocks data sent out the CS I/O port when the datalogger sets the
printer enable/SDE (pin 6) high. The SC932 or SC932A (CS I/O to RS-232
DTE interface) can be used to interface to an RS-232 modem.