http://www.kce.url.tw/en/custom_19522.html 2-3. Large-Scale LED Displays 2-3. Large-Scale LED Displays ▇ Connect (wet) single monitor wiring position ▇ TH-913/TH-914/TH-922/TH-923 ▇ TH-911/TH-912/TH-920/TH-921 - 4-20mA ▇ TH-911/TH-912/TH-920/TH-921 - PT