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1. (WO2015045737) WIRELESS MODULE, WIRELESS APPARATUS, AND FIELD APPARATUS CONTROL SYSTEM

Pub. No.:    WO/2015/045737    International Application No.:    PCT/JP2014/072801
Publication Date: Fri Apr 03 01:59:59 CEST 2015 International Filing Date: Sat Aug 30 01:59:59 CEST 2014
IPC: H04B 1/40
H04B 1/18
Applicants: YOKOGAWA ELECTRIC CORPORATION
横河電機株式会社
Inventors: MOCHIZUKI Satoshi
望月 聡
Title: WIRELESS MODULE, WIRELESS APPARATUS, AND FIELD APPARATUS CONTROL SYSTEM
Abstract:
This wireless module is provided with: an antenna connecting terminal capable of having a plurality of external antennas connected thereto; a circuit, which selects at least one external antenna from among the external antennas connected to the antenna connecting terminal, and which transmits and receives wireless signals using the selected external antenna; and a first connector for inputting and outputting the signals transmitted and received by means of the circuit.