Sierra Instruction Manual Smart-Trak
®
2 Series 100
83
Appendix D: PIN Configuration
Figure
2
‐
4:
Wiring
Definitions
for
Optional
Communication
Cable
Pin #
Wire Color in Cable
Function
1.
Brown Analog
Ground/Output
2.
Red
0-5 VDC Output (or 0-10, 1-5 VDC
)
3.
Orange Analog
Ground/RS232
4.
Pink
Valve Override Purge
5.
Yellow
Power Return (-)
6.
Green
Power Input (+)
7.
Green/White
RS-232 Transmit (out)
8.
Blue Setpoint
9.
Purple Not
Used
10.
Gray Analog
Ground/Setpoint
11.
White Reference
Voltage
(5 VDC External Setpoint & Valve Purge)
12.
Black
Valve Override Close
13.
Brown/white
RS-232 Receive (in)
14.
Red/white
4-20 mA Output
15.
Red/Black Not
Used
Shield Wire
(no insulation)
Chassis (Earth) Ground
Note: Pins 1, 3, and 10 are connected together inside the instrument. Do
not tie these grounds together outside the instrument. Must have one
connection per analog ground. Recommended use listed.