多電口光纖收發(fā)器,，千兆光纖收發(fā)器,，純10兆光纖收發(fā)器,，工業(yè)MODEM，單芯雙向光纖收發(fā)器,，嵌入式工業(yè)MODEM,，專線MODEM，DL-1200,，千兆自適應(yīng)光纖收發(fā)器，以太網(wǎng)收發(fā)器,，E1協(xié)議轉(zhuǎn)換器,，E1轉(zhuǎn)RS232/485/422，E1轉(zhuǎn)多路RS22串口,，RJ45轉(zhuǎn)BNC,，BNC HUB，以太網(wǎng)集線器,，光纖MODEM,，光纖轉(zhuǎn)串口RS232/485/422，PCM復(fù)用設(shè)備