Campbell Scientific SC532A CS I/O Peripheral to RS-232 Interface - Manual (Page 7)

SC532A 9-Pin Peripheral to 9-Pin RS232 Interface
9227
SC532A
RS232 to CS I/O
POWER
MADE IN USA
SN:
PERIPHERAL
PC
Logan, Utah
Logan, UT
SM4M
SN:
SOLID STATE STORAGE MODULE
MADE IN USA
9-Pin
Cable
SC12
FIGURE 2. Connection Block Diagram (9-pin cable, side power jack)
FIGURE 3. DC Cable for 12 VDC Datalogger Connection
4. Hardware Connections
Figure 2 shows the connection from a Campbell Scientific peripheral to a PC’s
9-pin RS232 COM port via SC532A and data cables.
5. Operation
A CSI peripheral's logic levels (0V low, 5V high) are converted to RS232
levels (
−10V and +10V respectively) by the SC532A.
The SC532A supplies regulated 5 VDC and unregulated 12 VDC power for
peripherals. An AC adapter that plugs into a 120 VAC wall outlet is available
as a common accessory.
You will need to write your own software if you are not using PC208 or
PC208W Datalogger Support Software. Read the specific peripheral manual
for the necessary control sequence.
Appendix A contains the SC532A and the DTE computer pin descriptions.
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