Campbell Scientific VSP3 Vosponder Voice Radio Interface - Manual (Page 10)

Section 1. Hardware
1-2
The SDI-12 interface cable is wired between Vosponder and a CSI datalogger
as follows:
Vosponder Color Purpose CSI Datalogger
Terminal 1 Black Ground G
Terminal 2 Red +12 VDC 12V
Terminal 3 White Data Control Port
Terminal 4 No Connection
1.2 Two-Way Radio Interface
This connection provides an interface from the Vosponder to a two-way radio.
The Vosponder interfaces to most any two-way radio system through J6 which
is an 8 x 8 (8 pin, 8 pin used) RJ45 modular connector, shown in Figure 1-2.
Each cable must be designed for a specific radio, and is therefore provided as a
separate item. Several standard cables are available for Maxon, ICOM, and
Bendix King radios. A custom cable can be ordered for any radio by
contacting a technical support representative at (435) 755-0300, or by e-
mailing your request to [email protected].
Users can also build their own radio interface cable. A schematic of this
connection can be found in Appendix B, Figure B-4.
FIGURE 1-2. J6, Radio Interface Port