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一、	HWB型无主机防爆电话扩音通讯系统	HWB non switchboard explosion-prooftelephoncom munication system
	系统连接示意图、系统组件选型一览表	Table of parts & connecting figure of system
	DYZ-1(2、3) 型电源转换器	DYZ-1(2,3) power power conversion device
	DHZ-1电话转接器	DHZ-1 telephone commutator
	HWK-1无主机室内对讲电话机	HWK-1 non switchboard indoor interphone
	HWK-1A无主机室内电话扩音转接器	HWK-1A non switchboard indoor telephone commutator
	HWB-1型无主机扩音防爆电话站	HWB-1 non switchboard explosion-proof telephone station
	HWB-2型无主机扩音防爆电话站	HWB-2 non switchboard explosion-proof telephone station
	HWB-3型无主机扩音防爆电话站	HWB-3 non switchboard explosion-proof telephone station
	BYS-1型防爆扬声器	BYS-1 explosion-proof loudspeaker
	BJX-1型防爆接线箱	BJX-1 explosion-proof terminal box
	HZWK-1型无主机(智能)室内对讲电话机	HZWK-1 non switchboard (intelligent)indoor interphone
	HZWK-1A型无主机(智能)室内电话扩音转接器	HZWK-1A non switchboard(intelligent)indoor telephone commutato
	HZWB-1型无主机(智能)扩音防爆电话站	HZWB-1 non switchboard explosion-proof telephone station(intellignet)
	HZWB-2型无主机(智能)扩音防爆电话站	HZWB-2 non switchboard explosion-proof telephone station(intelligent)B
	BJH-1 型防爆均衡器	BJH-1 explosion-proof equalizer

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