ABB SROUT, Technical Reference Manual

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1MRS 750109-MUM Router Option Card for Lon

Star Coupler
RER 111
SROUT
ABB Automation 13
The figure below shows the required jumper settings of jumper groups S1, S2, S3
and S4 for each transceiver mode and the corresponding transceiver ID.
Router side A can be set to be a TP/XF-78 interface, i.e. 78 kb/s speed, a TP/XF-
1250 interface, i.e. 1.25 Mb/s speed, or a fibre-optic interface
.
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The jumper group S1 is used for selecting the transceiver type to be used (jumpers
J2 and J3) and to control the network termination. The following figure shows how
to enable and disable network termination using jumpers J1 and J4.
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Jumper group S4 is used to connect the fibre-optic interface to router side B, i.e. the
open collector bus. Note that the fibre-optic interface can be connected to router side
B only when it is not connected to router side A, i.e. when a twisted pair interface is
in use.
S2
TP/XF-78
S2 S2
TP/XF-1250 Fibre optic
S3
S1 S1 S1
S3
S3
S4 S4 S4
srout_9
Network termination disabled
S1
J1
J4
J3
J2
Network termination enabled
S1
J1
J4
J3
J2
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