add on card meaning in English

加置卡

Latch function to add on card debug : 1 . connect add on card s d - sub connector to rs - 232 tester or check tester
A .先将待测介面卡之连接器connector ,接上有led之测试显示盒rs - 232 mini
Add on card debug : connect add on card s d - sub connector to rs - 232 tester or check tester . setup i o port address
软体除错时:利用本卡当作检查点check point显示卡,可写write数值至本
Function to do hardware burn in test for add on cards . 3 . for engineer : usually use oscilloscope probe to measure signal on
3 .维修工程师:若有习惯使用示波器去量测某点信号在power on - off瞬间的波