Sierra C100H, Instruction Manual, Page: 18 / 98

Sierra Instruments Instruction Manual Smart-Trak
®
2 Series 100
18
Figure 2 ‐ 3: HD DB ‐ 15 Connector Pin Configuration (on the instrument)
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.