这份是J750各种硬件的参数手册，可以用来查阅各种板卡的通道数，电压电流spec等等 J750/J750Ex Specifications: Table of Contents APMU Specifications CTO Specifications DPS Specifications HDVIS Specifications ICUA Specifications ICUD Specifications J750 Digital Channel Specifications J750Ex Digital Channel Specifications MSO Specifications RFID Specifications