YSI 6500 Environmental Process Monitor - Manual (Page 82)

Accessories Appendix D
6502, Front Cover Removed
(2) MS-8 to Sonde
3/4” conduit to Jct. Box
IMPORTANT!
GND on TB-1 is for signal common only.
Do not connect to earth ground.
The TB-1, Figure 4, conductor color
code is:
(1) Red
+12 VDC
(2) Black Common
(3) Blue SDI-12
The TB-2 & TB-3, Figure 4, conductor color code is:
1 3 2
TB-1
Figure 4
(1) Red
+12 VDC
(2) Black Common
(3) Purple SDI-12
YSI Incorporated 6500 Environmental Process Monitor 79