Data line signal SPD is designed according to the IEC's surge protector standard and customized for the limited installation space of data information system. Jinli data line signal SPD provides the best solution  for all kinds of buses (such as RS485, RS232, RS422, etc.), analog model (such as 4-20ma signal, etc.) and switch signal.

      The product is applicable to signal protection of general line, analog quantity and switch quantity of various data information systems, such as industrial control system; security system; other control systems.