Network Signal Connections; Rs485 - Onicon System-10 Installation Manual

1.4

NETWORK SIGNAL CONNECTIONS

1.4.1 RS485

MODBUS RS485, 2-wire (half-duplex) serial output connections are connected to terminal
T1 as shown. Do not exceed 4.4 in-lb (0.5 Nm) of torque when tightening.
!
Only qualified service personnel should make connections between the System-10 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.
Do not connect
shields to this
terminal.
!
Incoming and outgoing RS485 cable shield wires should be connected together, but must not be
connected to the Btu meter.
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System-10-MOD Network Interface Installation Guide 08/16 - 0653-13 / 18321
CAUTION
Terminal
T1
CAUTION
Page 6