Note: When connecting to third party RS485 devices, their data line nomenclature may be
inverted. If the RXD LED is on continuously, this indicates a crossed data pair.
• The use of ferrules to terminate the cable ends is strongly recommended to
minimize problems with frayed wires and to strengthen the terminal block con-
nection, when daisy chaining wires use a dual wire ferrule.
Phoenix Contact and many other vendors carry ferrules and crimping tools for this pur-
pose.
For more information about RS485 wiring, please refer to TD 17513, Eaton Electrical field
Devices Communication Wiring Specification.
www.eaton.com
IB02601007E
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3. Mounting and Wiring