ABB REO 517 Applications Manual page 389

Multi-function terminals for railway application
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Optical fibre communication module
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This module is designed for point to point optical communication, see figure 201, but
can also be used for direct optical communication to a multiplexer of type FOX6Plus or
FOX20, see figure 202 from ABB, provided it is equipped with an Optical Terminal
Module of type N3BT. The FOX6Plus can also be used as an optical to electrical con-
verter supporting the G.703 co-directional interfacing according to ITU (former
CCITT), see figure 203. FOX6Plus can also in some cases be used for X.21 and V.36
interface but special attention must be paid to how to connect the signal. Used as an op-
tical to electrical converter the FOX6Plus only supports 64 kbit/s data transmission.
Optical
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379

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