86-0574-86141701
Floor 2-6, No. 1, Bldg. 3, No. 28, Changsheng Road, Daqi, Beilun District, Ningbo, Zhejiang, China (Mainland)
RS 232 or RS422 or RS485 optical isolated interface converter software and equipment, US $ 22 - 30 / Piece, China, YEAHEVER, twisted pair or shielded cable.Source from Ningbo Yaheng Electronic Technology Co., Ltd. on Waimaotong.com.