Curtiss-Wright GT200 - Topologies

PRODUCT OVERVIEW
2.4 Topologies
There are various topologies for the GT200 card. The following topologies should cover
most customer applications. If another topology is desired contact Curtiss-Wright
Controls, Inc. Technical Support to see if it is possible. The topologies are:
Non-redundant ring
Redundant ring
Point-to-Point
Daisy Chain
Monitoring
Switch ring
Redundant switch ring
2.4.1 Non-Redundant Ring
This is the simplest of the topologies, with a single transmit/receive connection per node.
Any data written to one node is broadcast to all nodes. A break in one node of fiber
caused the ring to be broken. This topology would be used in a system where a failure in
the ring is not critical.
255
…
3
2
1
0
2.4.2 Redundant Ring
This topology is the same as a non-redundant ring; only a second ring is added using the
second transceiver to create a ring with data flowing in the opposite direction. A failure
in one of the rings does not prevent data from flowing to all the nodes. This topology
would be used in critical systems where a break in the ring cannot be tolerated.
1
Tx1
Tx0
Rx1
Rx0Tx1
Tx0
Rx1
Rx0
76
5
4
3
2
Copyright 2005 2-6 GT200 Hardware Reference