ER-201 receiver can encapsulate a variety of OEM board. The product has two serial ports which can communicate with external equipment. Receiver has an antenna port, Power input and so on. It is suitable for low-cost, low -power field BDS / GPS positioning system, multi- application RTK, timing etc. This receiver’s frame can package BDM100/651/670/680 -type card, ER-201-AT type use DB9 serial