The TAG 705 12v external power supply connections are as follows:
Pin 1 = ground (black wire inside timer)
Pin 3 = 12v + (red wire inside timer)
These pins are diagonally opposite
Power supply
input
100-240v 400 ma
output
output 12vdc 1.25 amp
Plug
Binder gmbh (germany)
710 2 99-0980-00-04
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