ONICON System-10 N2 User Manual
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11451 Belcher Road South, Largo, FL 33773 • USA • Tel +1 (727) 447-6140 • Fax (727) 442-5699 • [email protected]
System-10-N2 BTU Meter Installation and Operation Guide 05/14 - 0655-5 / 18322
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1.4 NETWORK SIGNAL CONNECTIONS
1.4.1 RS485
N2 RS485, 2-wire (half-duplex) serial output connections are connected to
terminal as shown. Do not exceed 4.4 in-lb (0.5 Nm) of torque when tightening.
CAUTION
Only qualified service personnel should make connections between the System-10-N2 BTU Meter
and the user’s external equipment. ONICON assumes no responsibility for damage caused to the
external equipment as a result of an improper installation.
!
CAUTION
Incoming and outgoing RS485 cable shield wires should be connected together, but must not be
connected to the System-10.
!
N2 (-)
N2 (+)