
Using the Modbus Plus Ports
140
870USE10110 July 2004
DB9 Connector T This connector is used in cluster mode with a Modbus Plus Communication Adapter
or with the 172 PNN 210 22 or 172 PNN 260 22 Modbus Plus option adapters.
Details
Terminating
Resistor Plugs
Terminating resistor plugs are used with the connector T at the last device in a
cluster when it is also the last device in the Modbus Plus network. The plug is red.
Note: Only one connector T may be used with each adapter, making it impossible
to use redundant cabling in cluster mode.
Description Part Number Illustration
Modbus Plus connector T (DB9 base) 170 XTS 020 00
Description Part Number Illustration
Modbus Plus or Modbus RS485 terminating
RJ45 resistor plugs (pack of 2)
170 XTS 021 00
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