Vacon OPTC4, Руководство пользователя

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2
2.2 Physical media and wiring
L
ON
W
ORKS
networks can be implemented on many different physical media. Vacon OPT-
C4 option board is equipped with an FT-X1 transceiver supporting the Free Topology
transformer coupled network, which allows the network wire to be connected as bus,
star, loop or combination of these. This media reaches a communication speed of
78kBits/s. The FT-X1 transceiver is compatible with Echelon’s LPT-10 Link Power
Transceiver, and these transceivers can communicate with each other on a single
twisted pair cable.
termination
termination
Figure 2-1. Doubly Terminated Bus Topology
termination
Figure 2-2. Singly Terminated Bus Topology
termination
Figure 2-3. Star Topology
termination
Figure 2-4. Loop Topology
Up to 64 FTT-10 transceiver nodes are allowed per network segment, the individual segments
can be connected together by a router. See Table 3-1 for recommended cable types and cable
lengths for FTT-10. Even if unshielded cable types are recommended to be used with this type
of transceiver, it is still highly recommended to use only shielded cables with frequency