Home  Products SMG Performance features |
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SMG Performance features |
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The SMG system is
designed for the transmission of digital, serial data, as generally
typical in data communications networks, as well as also for the
transmission of video signals. Special transceivers (transmit/receive
devices) with interface modules for all common bus systems prepare the
digital, serial signals for transmission by means of frequency
modulation.
For full-duplex
transmission of the usable signals, two carrier frequencies in a range
around 2.4 GHz are available. A specially shaped aluminum extruded
profile (slotted hollow conductor) between the transceivers is used as
the transmission medium.
Through the transparent
layout, as well as the support of numerous data protocols, the SMG
system can be integrated into existing bus systems without a problem.
If needed, for this purpose VAHLE also provides suitable engineering
services.
Following special features
distinguish the SMG transmission technique:
- Immunity to interference due
to isolation of the SMG profile from the surroundings.
- Maintenance-free due
to contactless transmission technology.
- Common assembly of the SMG profile
with all VAHLE current conductors, Powerail conductors and the CPS
system.
- Error-free transmission of high data
rates
up to 10 Mbit/s.
- Simultaneous transmission of up
to six data channels full duplex.
- Transmission paths of up to
1000 m without intermediate amplification due to high dynamic
response of transceivers.
- Simple adaptation to the customer's
computer peripherals, as well as good expansion possibilities due to
modular device construction.
- EMERGENCY-OFF
transmission according to stop category 1, safety level 3.
- Coupling of several
mobile subscribers to one SMG profile.
- Transmission independent of
traveling speed of mobile subscriber.
- No negative effects on transmission
quality due to environmental influences, e.g., temperature, humidity,
clouds, dust, etc.
- Also suiable for tracks with curves,
breaks and switchpoints.
The SMG data transmission system
provides many interfaces for the most common bus systems (RS 232 C, RS
422/485, Ethernet, Allen-Bradley Data Highway
Plus, Allen-Bradley remote I/O, GE Genius, and many more) as well as
special interfaces for video, audio, control signal and
emergency shutdown transmission. All interfaces are formed as plug-in
modules and thus can be easily adapted to the existing communications
structure.
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