Cabling Recommendations; Protection On Twisted-Pair Data Ports; Supported Fiber Optic Cables - Siemens RUGGEDCOM RS400 Installation Manual

RUGGEDCOM RS400
Installation Guide
Section 1.4

Cabling Recommendations

Siemens recommends using SIMATIC NET industrial Ethernet shielded cables for all Ethernet ports.
CONTENTS
• Section 1.4.1, "Protection On Twisted-Pair Data Ports"
• Section 1.4.2, "Supported Fiber Optic Cables"
Section 1.4.1

Protection On Twisted-Pair Data Ports

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 electrical event, communications errors or interruptions may occur, but recovery is
automatic.
Siemens also does not recommend using copper Ethernet ports to interface with devices 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.
Section 1.4.2

Supported Fiber Optic Cables

The following fiber optic cable types are supported under the stated conditions.
Cable Type
OM1 (62.5/125)
OM2 (50/125)
a
OM3 (50/125)
a
OM4 (50/125)
a
Laser optimized.
Cabling Recommendations
Modal Bandwidth
Wavelength (nm)
(MHz·km)
850
1300
850
1300
850
1300
850
1300
100Base-FX
200 —
500 2000
500 —
500 2000
1500 —
500 2000
3500 —
500 2000
Introduction
Distance (m)
1000Base-SX 10GBase-SR
275 33
— —
550 82
— —
550 300
— —
550 400
— —
Chapter 1
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