价格:未填
供应:99999
发货:3天内
二总线消防电话主机（总线消防通讯主机） 1,20/100门总线电话，布线只需二根且不分极性 2,主分互叫；分机摘机即通话，主机显号 3,可三方通话，尺寸2U 4,通话时自动启动20分钟以上的数字录音 5,呼叫、应答时间记录，液晶屏显示100条信息 2-BusFireControlTelephoneHost 1,Onlyatwisted-pairwirewithoutpolarityisneeded. 2,Atotalof20/ 100extensionscanbeprovidedforthemainphone. 3,Eachextensioncancallthemainphonewithoutdialing.Andthemain phonecancallanyofthefittedextensiontoo.What’smore,theextensionnumberdisplayswhenitiscalling. 4,Permitsthesecondextensiontocallwhenthemainphoneiscommunicatingwithadifferentextension. 5,Thesystemscanstartmorethan20minutesofdigitalrecordingwhencommunicating. 6,Callandresponsetimewasrecorded；LCDscreencandisplay100piecesofinformation