DTMF MT8870 Phone Voice Decoding Module

DTMF MT8870 Phone Voice Decoding Module


10 in stock


MT8870 DTMF Audio Voice Decoder Telephone Phone Speech Decoding Voice Board Module LED Indicators With Pins


Functional characteristics:
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

Use Instructions:
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.

Package include

1 x 4 CH DTMF MT8870 Audio Decoder Smart Home Controller Voice Mobile Phone Control


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