Cabling Recommendations; Protection On Twisted-Pair Data Ports; Gigabit Ethernet 1000Base-Tx Cabling Recommendations - Siemens SIMATIC NET RUGGEDCOM M2100F Installation Manual

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Table of Contents

Introduction

1.5 Cabling Recommendations

Recycling and Disposal

For environmentally friendly recycling and disposal of this device and related acces-

sories, contact a facility certified to dispose of waste electrical and electronic equip-

ment. Recycling and disposal must be done in accordance with local regulations.

1.5

Cabling Recommendations

Before connecting the device, be aware of the recommendations and considerations

outlined in this section.

1.5.1

All copper Ethernet ports on RUGGEDCOM products include transient suppression

circuitry to protect against damage from electrical transients and conform with IEC

61850-3 and IEEE 1613 Class 1 standards. This means that during a transient electri-

cal event, communications errors or interruptions may occur, but recovery is auto-

matic.

Siemens also does not recommend using copper Ethernet ports to interface with de-

vices in the field across distances that could produce high levels of ground potential

rise (i.e. greater than 2500 V), during line-to-ground fault conditions.

1.5.2

The IEEE 802.3ab Gigabit Ethernet standard defines 1000 Mbit/s Ethernet commu-

nications over distances of up to 100 m (328 ft) using all 4 pairs in category 5 (or

higher) balanced, unshielded twisted-pair cabling. For wiring guidelines, system de-

signers and integrators should refer to the Telecommunications Industry Association

(TIA) TIA/EIA-568-A wiring standard that characterizes minimum cabling performance

specifications required for proper Gigabit Ethernet operation. For reliable, error-free

data communication, new and pre-existing communication paths should be verified

for TIA/EIA-568-A compliance.

The following table summarizes the relevant cabling standards:

Cabling