MT8870 DTMF Audio Voice Decoder Telephone Phone Speech Decoding Voice Board Module LED Indicators With Pins
1 Product model: AD22B04
2.working voltage DC 12V, with reverse polarity protection
3.Operating Current: Standby 11-13 MA, 1 relay “open” 44MA, 2 relays “Open” 77MA, 3 relays “Open” 110MA, 4 relays”open” 140MA
4 eight modes of operation:Non-locking (Momentary ), self-locking (Toggle),inter-locking (Latch), 5/20/60/120/250-second delay
5 The default control command is 1/2/3/4.Example: Dial 1 to control relay 1, dial 2 to control relay 2, dial 3 to control relay 3, dial 4 to control relay 4; control commands can be changed any 1-4 bits. (For more details, refer to ” AD22B04_4 channel DTMF controller commands setting manual “).
6 Size: 50 * 80 * 19.5mm
7 Weight: 59 grams
8 Maximum load: 10A / 250VAC, 10A / 125VAC, 10A / 30VDC, 10A / 28VDC, 10A / 12VDC
This is the DTMF audio controller with four channels, any phone or fixed telephone with DTMF key code remotely controls product relay “open” and “close”.(the majority of smartphones and functions machine are DTMF code). Our software “DTMF Dial” (installed in a computer) can be also provided to control relays.