1、3 IN 1 FUNCTION: USB to 485, USB to 232, 232 to 485 in one, while leaving the TL interface, you can realize USB to TTL, TTL to 232, T to 485 and other functions. 2、PROFESSIONAL: Specifically designed for access control, PTZ, PLC, industrial instrumentation communicate, applicable to a variety of field environments. 3、WITH INDICATOR: The driver supports for WIN7 XP, for Linux and so on, with indicator, it is convenient for you to observe the use status. 4、SMALL AND COMPACT: 232 to 485 converter dip switch is small and compact, more beautiful, easy to carry and use. 5、PREVENT DEFORMATION: USB to 485 converter is made of ABS material, wear resistant and durable, prevent deformation, can be used for a long time.