Campbell Scientific VSP3 Vosponder Voice Radio Interface - Manual (Page 9)

1-1
Section 1. Hardware
► 1. Hardware connections to the datalogger and radio (Section 1)
2. Programming the datalogger to output the data values to the
Vosponder (Section 2)
3. Developing a voice image file for the Vosponder (Section 3)
4. Setup and testing of the Vosponder (Section 4)
Understanding how to connect the various hardware components is the first
step in the setuup process. The Vosponder has three input connectors. These
include an SDI-12 bus interface, a radio interface, and an RS-232C terminal
serial interface. Before the Vosponder can be used it must be connected to a
datalogger, a power supply, and a radio. The RS-232C serial interface is only
used when the Vosponder is connected directly to a computer for
configuration. Following is a description of each connection and its purpose.
1.1 SDI-12 Bus and Power Input
This connection provides an interface to the datalogger and power to the
Vosponder. The Vosponder is designed to operate from the nominal +12 Volt
DC provided via the SDI-12 interface cable. J1 is a four place, right angle,
5 mm screw terminal that facilitates the mechanical connections as shown in
Figure 1-1. A schematic of the connector can be found in Appendix B, Figure
B-2.
FIGURE 1-1. J1, SDI-12 Bus Interface Connector