Spectrex 20/20SI Triple IR (IR3) Flame Detector - Manual (Page 38)

Spectrex Inc. - SharpEye TM IR3 Flame Detector Manual – TM 20/20I, Rev. (6) August 2004
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• 4-20mA Output (Terminal Numbers 11, 12):
Terminal Numbers 11 and 12 are used for analog, 4-20mA current output as
specified in paragraph 4.e
Terminal No. 11 is used as output Terminal.
Terminal No. 12 is used as input Terminal (see appendix B for more details)
• RS-485 (Terminal Numbers 13, 14):
Terminal Numbers 13 and 14 are used for communication network as specified
in appendix C.
Terminal No. 13 is the positive (+) lead.
Terminal No. 14 is the negative (-) lead.
Figure 10: Terminal Board