Curtiss-Wright GT200, Справочник по аппаратуре, Страница: 19 / 62

PRODUCT OVERVIEW
2.4.3 Point-to-Point
This is a special version of the non-redundant ring where there are just two nodes.
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2.4.4 Daisy Chain
This topology only allows data to flow in one direction. This topology is used where data
does not need to be sent back to the sending node. The first node in the chain could be a
remote sensor sending data to several receiving nodes.
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2.4.5 Monitoring
A monitoring topology is a non-redundant ring with one of the nodes transmitting the
data on its second transceiver to a monitoring node. The monitoring node can be used to
watch the status of the ring and check the ring’s health.
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2.4.6 VLX2500 Physical Layer Switch
Curtiss-Wright Controls’ VLX2500 Physical Layer Switch provides the following
features:
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16 non-blocking SFP transceiver ports (with optional 8-port expansion card)
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3.2 Gbps port baud rate
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25.6 Gbps total bandwidth (51.2 Gbps with optional 8-port expansion card)
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Supports Arbitrated Loop, Point-to-Point, One-to-Many communication links
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Optional bypass of retiming circuitry for each port
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Retimed ports support short wavelength (850 nm), long wavelength (1300 nm),
and HSSDC2 physical media options
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SFP transceiver MultiSource Agreement (SFP MSA) compatibility for each port
to ensure functional support for transceivers from other manufacturers
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Flexible automatic I/O port fault isolation
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Multiple media options
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Hot-swappable SFP modules
Copyright 2005 2-7 GT200 Hardware Reference