Contemporary-control-systems AI-SRVR Servers to Ethernet Installation Guide Manual de usuario descargar pdf (Pagina 7)

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: During boot, this LED ashes green. Once all les have

loaded, it glows solid to indicate the unit is operational.

: The RX LED glows green when the unit receives data from

the ARCNET LAN. The ACT LED ashes yellow when unit transmits

data to the ARCNET LAN.

: The LINK/ACT LED glows if a valid link exists to an operating

Ethernet device and indicates speed by colour: green for 100 Mbps and

yellow for 10 Mbps. It ashes to indicate activity. The DUP LED glows

green to indicate full-duplex operation and yellow for half-duplex.

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The AI-SRVR Series is available in several transceiver options for

connecting to an ARCNET LAN. Each transceiver is matched to a

particular cable type and identied by a three-character sufx appended

to the model number. The capabilities of each transceiver differs.

CXB — Coaxial Bus

The CXB transceiver presents a high-impedance connection in both the

powered and unpowered states. Although nominally a bus device, it can

be used in either bus or star ARCNET topologies that use RG-62/u

coaxial cable.

Regardless of the topology implemented, the AI-SRVR coaxial port will

require a BNC Tee connector with at least one leg of the connector

fastened to coaxial cable. If the AI-SRVR passes trafc from one portion

of an ARCNET bus to another, the remaining leg of the Tee connector

will tie to another coaxial cable. But if the AI-SRVR occupies the end of

a bus segment, the remaining leg of the Tee connector must be tted with

a BNC-style terminator having 93 (nominal) ohms of resistance.

The maximum ARCNET segment length is 1000 feet and the maximum

number of nodes per segment is eight. To extend a bus segment beyond

1000 feet, an active hub is required. If the hub port is of the CXS type

(internally terminated), the coaxial cable should attach directly to the hub

port without using a BNC Tee connector. Do not add termination to such

a hub port since the port internally terminates the end of a bus segment.

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Contemporary-control-systems AI-SRVR Servers to Ethernet Installation Guide Manual de usuario Pagina 7