Non-visual One-to-one Intercom Doorphone Wired Two-way Audio linerphone

Non-visual One-to-one Intercom Doorphone Wired Two-way Audio linerphone

Features：

• Without unlock function
• Intercom doorphone for double rooms, widely used in offices, warehouses, families, etc.
• There is a connection cable between this doorphone, and they need to be wired to each other to make sure it could work well.
• The maximum operating distance is 200m/656ft when it is connected by RVV2(2 PIN) cable. (3.3ft cable come with this parcel)
• Plug into 110VAC power or insert 4 cells of R6P size AA 1.5V (alkaline) into the cabinet of both the talkback pair. (Battery is not included)
• Energy saving, no current
• Consumption while not work
• When you want to have a talk with the other, press down the push button and bell of his or her set will ring no matter whether you take up your handset or not.
• While talking, please speak into the micro phone.
• When your talking is over, put back the handset, see to it that the pilot light is off, or else the talkback set is still in working condition and continue to consume electric power.
• Our talkbacks are convenient to connect by means of twin conductor in common use, while connecting, please pay attention to the colour of the two different conductors.
• The effective talkback distance is 3 kilometers (9842ft), with wire resistance less than 60 ohms.
• The ring sounds level can’t be selected.

Specifications：

• Output sensitivity: <60mV(Frequency 1000Hz)
• Frequency Response: +/-3ddB(300Hz-3400Hz)
• Noise voltage: <10mV
• Ring sound level: >70dB(AT 0.5m)
• Quiescent current: <5uA
• Intercom working current: <100mA
• Input voltage: Plug into 110VAC power or insert 4 cells of R6P size AA 1.5V (alkaline) into the cabinet of both the talkback pair.

The connecting line effectively intercom wiring requirements:

• 100 meters: RVV2(2 pin) x 0.5 square millimeters
• 150 meters: RVV2(2 pin) x 0.8 square millimeters
• 250 meters: RVV2(2 pin) x 1.0 square millimeters
• 300 meters: RVV2(2 pin) x 1.5 square millimeters

Note:

• Without Unlock function (If you need unlock function, please see other listing in our store)

Package: