Description and operating instructions
Link Modules for Industrial Ethernet
Industrial Ethernet OLM V2.0
Industrial Ethernet ELM
SIMATIC NET OLM Industrial Ethernet
P 1
P 2
DA
CD
LS1
LS2
LS3
LS4
LS5
Port 1
Port 2
Port 3
SIMATIC NET ELM Industrial Ethernet
P 1
P 2
DA
CD
LS1
LS2
LS3
Port 1
Port 2
Port 3
SIMATIC NET
Industrial Ethernet
OLM V2.0 / ELM
Order no.
6GK1102-4AA00/
6GK1102-5AA00
The SIMATIC NET link modules for
Industrial Ethernet allow Ethernet networks
to be constructed flexibly in accordance
with IEEE standard 802.3 using optical
waveguide (F/O) and copper technology.
The link modules provide several connec-
tion options in one piece of equipment and
are plugged onto the standard bar.
The OLMs (optical link modules) have three
industrial twisted pair (ITP) interfaces and
two BFOC optical interfaces. It is possible to
connect up to three pieces of terminal
equipment or other ITP segments using
ITPs, and F/Os can be used to connect up to
two more pieces of terminal equipment or
optical network components (OLM, ECFL2,
Mini-OTDE, etc.).
Besides the three industrial twisted pair
(ITP) interfaces, the ELMs (electrical link
modules) have an AUI interface. It is possi-
ble to connect an Ethernet segment to a
CSMA/CD local area network (LAN) with a
transmission speed of 10 Mbit/s via the AUI
interface.
Both modules conform to the specifications
of ISO/IEC standard 8802-3.
You will find a detailed description of con-
structing a network with link modules and
notes on network planning and installation
in the "Industrial Twisted Pair" manual.
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