PolyPhaser and Transtector data line surge protectors are available in all standard voltages for RS-485 applications. Transtector’s data line surge protectors are your optimum solution for protecting RS-485 equipment, incorporating our proprietary non-degrading, fast acting, high performance silicon avalanche suppressor diodes (SASD). Engineered in compliance with the RS-485 standard, our data line protectors are low capacitance and have a tolerance in line with -7 to +12 volts. Transtector has the optimum surge protector for all common signal levels.