User's Manual

p.1FUTABA
Ni04-009-1 rev5.0
1. IN TRODUCTION
1-1. Special Features
1 FDK01TU fixed station outputs its modulated signals to the 200-ohm feeder cables, demodulates
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the modulated signals of a FDK02TU mobile station that come through the feeder cable, and
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sends them to FDK01TU's external controllers.
Please note that a matching/distributing unit is necessary to attach one or two 200-ohm feeder cables
to this modem.
2 Communication speed is 100kbps across the feeder wires.
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3 FDK has a function to carry out error correction by the combination of ARQ Automatic
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Retransmission Request and FEC of BCH 15,7 .
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4 In this system, multiple mobile stations can be allocated to the single feeder cable. And each mobile
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station can have individual address that can be set externally. As a result, a single fixed station and
multiple mobile stations can establish a communication network.
5 The interface between the external controller and the fixed station or the one between the external
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controller and the mobile stations is designed to meet RS-422, RS-485 and RS232C.
1-2. Names and functions of parts of the fixed station
①
Indicators of signal reception level
②
Indicator of signal transmission
③
Switches to set address
④
Switches to set frequency channels
⑤
Switches to set communication parameters
⑥
Switches to set external interface, transfer speed, and etc.
⑦
Switches to set parameters for RS-422/RS-485
⑧
Indicator of the power status
③
④
⑤
⑥
①
⑦
②
③