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Breaded Electronics / Embedded » Hualong King Interphone
2 hard connected phones
2 core connecting each, not a crossover
3 x AA batteries = 4.5v
Convert to 4 jack RJ
Pin | Colour | What |
1 | Black | VSupply -ve |
2 | Red | VSupply +ve |
3 | Green | |
4 | Yello |