Contemporary Controls CTRLink EIS Series Installation Manual

EISwitch
A Line of Fixed-Port Industrial Ethernet 10/100 Mbps Switches
INTRODUCTION
The EIS series — Ethernet Interconnect Switch in the CTRLink
solution for those industrial applications requiring a larger network diameter and greater
throughput. The EIS series becomes an essential element of the control strategy.
Classified as switching hubs, each device segments the Ethernet network into
separate collision domains. The EIS8-100T offers eight ports of expansion via
twisted-pair cabling. Four models offer fibre ports when greater distance or
galvanic isolation is required: The EIS6-100T/FC and EIS6-100T/FT
accommodate a fibre backbone via two fibre ports and offer four twisted-pair
ports for local drops. The EIS5-100T/FC and EIS5-100T/FT provide one fibre
port to terminate a fibre link and four local ports of twisted-pair. Each fibre
model also has an "–FCS" transceiver option for single-mode fibre.
Each switch functions as a "bridge" between the various data links — creating a
larger network diameter than can be achieved with repeating hubs. To optimise
speed and throughput, some functions are automatically negotiated:
Each twisted-pair port automatically optimises its data rate to 10 Mbps or
100 Mbps. The data rate of fibre ports is fixed at 100 Mbps.
Each port negotiates flow control — supporting the PAUSE function for full-
duplex links, and using the backpressure scheme for half-duplex segments.
The switch learns the ports of devices by reading Ethernet frames and noting
source addresses. It then creates and maintains a table of addresses and port
assignments by which traffic is restricted to only those ports party to a data
exchange. This allows other data to be simultaneously exchanged on other
ports—with improved throughput. If a broadcast, multicast, or unicast
transmission to an unknown destination arrives at a port, all other ports receive
the transmission. As an option for reduced data latency, cut-through operation
can be selected instead of store-and-forward operation.
The switch front-panel features one LED to warn of network
loops and LEDs for link status, port activity, and data rate of
each port. All units operate from low-voltage AC or DC power
and are DIN-rail mountable
CONTEMPORARY
INSTALLATION GUIDE
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INDUSTRIAL
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EQUIPMENT
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