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SF201-0.3

250VDC

0.3A

2

20KHz

1

电话、传真、交直流开关信号 
  Telephone, fax and AC/DC switch signal

SF202-10

250VAC

10A

2

100KHz

交直流开关信号、空调控制、消防语音广播、门禁 AC/DC switch   signal, air-con, voice and door access system control

SF103-1

100VDC

1A

1

6MHz

2

视频信号 Visual system control

SF203-1

100VDC

1A

2

6MHz

3

特种电话、消防报警、监控控制、门禁 Emergency   telephone, fire alarm, monitor and door access system control