Siemens RUGGEDCOM RX5000 Installation Manual

Also see for RUGGEDCOM RX5000: Reference guide Installation guide

RUGGEDCOM RX5000Installation GuideChapter 2Installing the DeviceProtection On Twisted-Pair Data Ports 7• Section 2.3.2, “Gigabit Ethernet 1000Base-TX Cabling Recommendations”Section 2.3.1Protection On Twisted-Pair Data PortsAll copper Ethernet ports on RUGGEDCOM products include transient suppression circuitry to protect againstdamage from electrical transients and conform with IEC 61850-3 and IEEE 1613 Class 1 standards. This meansthat during a transient electrical event, communications errors or interruptions may occur, but recovery isautomatic.Siemens also does not recommend using copper Ethernet ports to interface with devices in the field acrossdistances that could produce high levels of ground potential rise (i.e. greater than 2500 V), during line-to-groundfault conditions.Section 2.3.2Gigabit Ethernet 1000Base-TX Cabling RecommendationsThe IEEE 802.3ab Gigabit Ethernet standard defines 1000 Mbit/s Ethernet communications over distances of upto 100 m (328 ft) using all 4 pairs in category 5 (or higher) balanced, unshielded twisted-pair cabling. For wiringguidelines, system designers and integrators should refer to the Telecommunications Industry Association (TIA)TIA/EIA-568-A wiring standard that characterizes minimum cabling performance specifications required for properGigabit Ethernet operation. For reliable, error-free data communication, new and pre-existing communicationpaths should be verified for TIA/EIA-568-A compliance.The following table summarizes the relevant cabling standards:Cabling Category 1000Base-TX Compliant Required Action< 5 No New wiring infrastructure required.5 Yes Verify TIA/EIA-568-A compliance.5e Yes No action required. New installations should be designed with Category 5e or higher.6 Yes No action required.> 6 Yes Connector and wiring standards to be determined.Follow these recommendations for copper data cabling in high electrical noise environments:• Data cable lengths should be as short as possible, preferably 3 m (10 ft) in length. Copper data cables shouldnot be used for inter-building communications.• Power and data cables should not be run in parallel for long distances, and should be installed in separateconduits. Power and data cables should intersect at 90° angles when necessary to reduce inductive coupling.• Shielded/screened cabling can be used when required. Care should be taken to avoid the creation of groundloops with shielded cabling.