Rockwell Automation T8314 Trusted Fibre TX/RX Unit - Manual

SDS-8314
Trusted TM Industrial Control System
Trusted TM Fibre TX/RX Unit-T8314
Issue 6 Mar 2008
FRONT PANEL
DESCRIPTION
The Trusted
TM Fibre TX/RX Unit
T8314 is designed to extend the
Trusted
TM Expander Bus over
distances of up to 10km. This
enables a Trusted
TM Expander
Chassis to be located remotely
from the Trusted
TM system.
It is recommended that if a
remote Expander Chassis is to
located more than 2km from the
Controller Chassis, the route of
the cable is surveyed.
The Expander Bus is extended by
means of a communications link
using a single mode fibre-optic
cable. The Trusted
TM Fibre
TX/RX Unit converts the
differential signals of the
copper-based Expander Bus to a
fibre-optic signal for transmission
via the single mode cable. Three
totally independent pairs of
Trusted
TM Fibre TX/RX Units
provide a non-interfering ‘Grey
Channel’ approach to safety.
Six Units are required for each
remote link with three located at
each end. A dual 24V dc power
philosophy is employed allowing
the user to supply each Unit with
dual power feeds.
Individual Units require no
configuration prior to installation
within a remote communications
link. Each Unit operates in a
stand-alone
mode allowing
replacement without interrupting
the operation of the Trusted
TM
System.
There are no diagnostics,
available, but the quality of
communications may be checked
by using the main Processor
diagnostics via the Trusted
TM
Diagnostics Interface Utility.
FEATURES
Dual 24V dc diode OR’d
power supply
Easy installation (DIN rail
mounting)
Communications over a
distance of 10km. Route
survey recommended for
distances over 2km
Independent Units therefore
easily maintained
SC type connectors
Low power consumption