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SROUT
2.2.
2.3.
8
Router Option Card for Lon® Star Coupler
RER 111
A message received from the twisted pair interface is passed on to the open-collector
bus on the mother board, through the RTR-10 core module. A message received
from the open collector bus is sent to the twisted pair interface through the RTR-10
core module.
With this interface, network termination is available, either in an enabled or a disa-
bled state. The required state is set by jumpers.
The router option card also contains a LED for the twisted pair interface. This LED
flashes when a message is being sent or received by the twisted pair transceiver.
Fibre-optic interface
The router option card can be equipped with a fibre-optic transceiver pair with two
different types of fibre-optic interfacing available. These types are not
interchangeable and have to be defined by the user in the order. For ordering
information, see chapter 8.
The router option card also contains a LED for the fibre-optic receiver. This LED
flashes when a message is being received from the fibre-optic channel.
The fibre-optic interface can be connected to either router side A or router side B, or
it may not be used at all. This is achieved by the use of jumpers.
If the fibre-optic interface is connected to router side A, then all messages are sent
to the open collector bus through the RTR-10 core module and vice versa.
If the fibre-optic interface is connected to router side B, then all messages that are
sent to the open collector bus from the twisted pair interface are also sent to the fibre-
optic interface. Then any messages from the open collector bus are transmitted
directly to the fibre-optic interface and also to the twisted pair interface through the
RTR-10 core module.
Please note that the fibre-optic interface cannot be connected to both router sides at
the same time.
RTR-10 core module
The Echelon RTR-10 core module contains the core electronics and firmware
required to implement a router. The RTR-10 core module also contains the
parameters needed for the communication with the L
information, etc.).
The task of the core module is to pass on messages between router sides. Router side
B is permanently connected to the open collector bus from the mother board. The
fibre-optic interface can also be connected to this side (providing that it is not
already in use for router side A). Router side A can be user-defined as either a
twisted pair or a fibre-optic interface.
1MRS 750109-MUM
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network (address
ON
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ABB Automation
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