1.2 SDI-12 Interface Cable
Solinst 2-wire signals are converted to SDI-12 signals by the Solinst SDI-12 Interface Cable. One end of this cable has three wires which connect to an SDI-12 datalogger. These wires are colour-coded according to Table 1-1. The other end of the cable terminates in a Direct Read connection. This connects to the top of a Direct Read Cable for connection to a Solinst Levelogger. The Solinst Levelogger has a self-contained battery and does not use +12V DC power. The SDI-12 Interface Cable circuitry requires the 12V connection. The current draw is nominally around 15 - 25 mA at 12V DC.
Wire
Colour |
SDI-12
Function |
Connection |
Red |
12 Volt Line |
+12V DC at SDI-12 Data Logger |
Black |
Ground Line |
Ground at SDI-12 Data Logger |
White |
Serial Data Line |
SDI-12 Data at SDI-12 Data Logger |
Table 1-1 SDI-12 Interface Cable Wire Definitions
The communication settings for the Solinst SDI-12 Interface Cable hardware comply with the SDI-12 standard at 1200 baud, 1 start bit, 7 data bits, 1 parity bit (even parity), and 1 stop bit.
| Technical Specifications |
Standard Compliance |
SDI-12 Standard, Version 1.3, July 18, 2005 |
+12V Input |
9.6V-16.0V |
Supply Current |
15-25 mA |
Direct Read (green) Cable - Max Length |
1500 ft |
SDI-12 Cable Length |
200 ft |
| Environmental |
IP-65 |