2 Nomenclature and Installation
2-6
CJ-series PROFINET IO Controller Unit Operation Manual for NJ-series CPU Unit (W511)
Additional Information
The following standards and specifications apply to the Ethernet connector and the twisted-pair
cable.
•
Electrical specifications: Conforming to IEEE 802.3 standards
•
Connector structure: RJ45 8-pin Modular Connector (conforming to ISO 877). For more infor-
mation about connectors see the PROFINET Cabling and Interconnection Technology Guide-
line Order No.: 2.252 available through PI (Profi International).
Precautions for Correct Use
Precautions for Correct Use
For the Ethernet infrastructure please follow the following guidelines:
•
Shielded twisted-pair (STP) cable: minimum category CAT5 in accordance with ISO/IEC
24702 but only suitable for Conformance Class A. PROFINET-specific cable in accordance
with IEC 61784-5-3 is preferable for Conformance Class A. And is mandatory for Confor-
mance Class B/C. For more information see the PROFINET Conformance Class A Cabling
Guideline. Order No.: 7.072 available through PI.
•
Make sure to follow the PROFINET Installation Guideline for Cabling and Assembly Order
No.: 8.072 available through PI.