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Serial Digital RS422/485 Data
Fibre-Optic-Link
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This is a transmission system which
produces great benefits for users who require a solution to
electrical interference and noise problems in data transmission. The
link is full duplex, and is fully user-configurable between high
speed RS422 and RS485 interface options.
It complements our point2point
analogue fibreoptic-link modules in many applications as well as
being a useful product in its own right.
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OPERATION
The Serial Digital RS422/485 Link Transceiver converts
electrical data into an optical signal for transmission over
the optical fibre. At a receiving end, an identical
Transceiver converts the optical signal back into an
electrical signal. Each Transceiver comprises complementary
Transmit and Receive circuits to permit two way simultaneous
data flow.
In
addition, multiple Transceivers can be configured to operate
as a multi-drop RS485 network.
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APPLICATIONS
- EMC Test Chambers.
- Electrically Noisy Environments.
- Communication with equipment in High voltage
environment.
- Long Distance Multi-Point Control.
- Process Control.
- Computer Linking.
- Remote Control.
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BENEFITS
The use of optical fibre has a number of inherent
advantages over conventional copper based
alternatives:
- Immunity to electrical interference, so the signal is
not corrupted by radiated interference.
- It is non-conductive, thus providing an intrinsically
safe transmission path for the monitoring of equipment at
hazardous voltages.
- It uses highly flexible and small diameter
cable.
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HIGH PERFORMANCE
Our Serial Digital Data Fibre-Optic-Link range offers particular
advantages:
- Electrically screened Shielded Remote Module option for
operation in high levels of electrical interference.
- High
Speed RS422 and RS485 operability.
- Full
Duplex Link (point-to-point) · Long distance option for >1km.
- Status LEDs for Power, Data.
SYSTEM CONFIGURATION
The
RS422/485 Serial Digital Data Fibre-Optic-Links belong to our modular point2point product range, where the Transceiver units can
be delivered in Remote, Shielded Remote or Plug-In Module options.
Please refer to the System Electrical Performance Datasheet
for more details.
USER SPECIFIED
PARAMETERS
The
uniquely modular design of the point2point system enables the user
to specify a range of link parameters to suit any particular
application:
- Interface type;
- Mechanical housing type;
- Optical connection type (including ruggedised connectors
and high strength cable).
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Parallel Digital Control & Acquisition
Fibre-Optic-Link
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This is
an 8 channel digital system which produces great benefits for users
who require a solution to electrical interference and noise problems
in data acquisition, control, and signal transmission.
This
unique product permits the transmission of 8 lines of digital data
asynchronously over a single fibre.
The
inputs can be used as a conventional 8-bit bus or individually as 8
digital input channels with a range of input levels. The product is
available with an open-drain current switching output for control
applications.
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APPLICATIONS
- EMC Test Chambers.
- Electrically Noisy Environments.
- Automotive Applications In Multi-Channel
Indicator/Transducer Monitoring.
- High voltage monitoring and analysis.
- High Speed Data Acquisition.
- Transparent Data Transmission.
- Alarm monitoring in hazardous
areas.
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BENEFITS
The use of optical fibre has a number of inherent
advantages over conventional copper-based alternatives:
- Immunity to electrical interference so the signal is
not corrupted by radiated interference.
- It is non-conductive, thus providing an intrinsically
safe transmission path for the monitoring of equipment at
hazardous voltages.
- It uses highly flexible and small diameter cable.
- Elimination of ground
loops.
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HIGH PERFORMANCE
Our Digital Control & Acquisition Fibre-Optic- Link offers
particular advantages:
- Electrically screened Shielded Remote Module option for
operation in high levels of electrical interference.
- 8
channel sampled data transmission.
- Industry standard logic interfaces as well as open
drain/collector, 12V 24V or 48V interface.
- Current switching receiver option for applications with
higher output drive requirement, e.g. relays, lamps.
- Input
and output overload protection.
- Transmission length in excess of 1km.
SYSTEM CONFIGURATION
The
Digital Control & Acquisition Fibre-Optic-Link belongs to our modular point2point product range, where Transmitter and Receiver
units can be delivered in Remote, Shielded Remote or Plug-In Module
options. A typical system configuration comprises a Shielded Remote
Transmitter Module connected to a Plug-In Receiver Module via a
Fibre Optic Cable.
Please refer to the System Electrical Performance Datasheet
for more details.
USER SPECIFIED
PARAMETERS
The
uniquely modular design of the point2point system enables the user
to specify a range of link parameters to suit any particular
application:
- Input
and output levels;
- Housing type;
- Optical connection type (including ruggedised connectors
and high strength cable).
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