User guide

Using the Modbus Ports
100
870 USE 101 00 V.2.2
Terminating Devices for Modbus RS485 Networks
Overview
This section describes terminating devices which should be used in constructing
Modbus RS485 networks for TSX 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.
The plug is red.
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.
The plug is
blue.
Description Part Number Photo
Modbus Plus or Modbus RS485
Terminating RJ45 Resistor Plugs
(pack of 2)
170 XTS 021 00
Description Part Number Photo
Modbus RS485 Terminating
RJ45 Shunt Plugs
170 XTS 042 00