Support 4D probe; recognize the probe through the ID code; swap the 4D generate sign via the  electrical relay to make the 4D probe work Commonly. 4.2.two Primary board The primary board can be divided into two components: front-stop of the principle board and again-finish of the key board. https://archer78c90.articlesblogger.com/52717527/the-single-best-strategy-to-use-for-dp50rb