
Using the Modbus Ports
122
870USE10110 July 2004
Terminating Devices for Modbus RS485 Networks Connecting Momentum
Components
Overview This section describes terminating devices which should be used in constructing
Modbus RS485 networks for Momentum devices.
Terminating
Resistor Plugs
Terminating resistor plugs are used with the RS485 connector (RJ45 base) at the
last device on either end of a four-wire cable network or at one end of a two-wire
cable network.
Shunt Plugs Shunt plugs are used with the RS485 connector (RJ45 base) at one end of a two-
wire cable network. The plug is used at the last device on the network.
Description Part Number Illustration
Modbus Plus or Modbus RS485 terminating
RJ45 resistor plugs (pack of 2)
Color code: red
170 XTS 021 00
Description Part Number Illustration
Modbus RS485 terminating RJ45 shunt plugs
Color code: blue
170 XTS 042 00
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