The SK-PC-Z1D1-UU1-10-HS USB intrinsic safety barrier enables a host device (i.e., an industrial PC) that is in a Zone 2 environment to be connected to an EXTA2/EXTA3 keyboard or similar USB device in a Zone 1/21 environment.
The barrier enables operation of input devices, such as PC keyboards and trackballs, within Zone 1/21 and 2/22 hazardous areas. To transmit USB signals from and into hazardous areas, it converts the two USB channels into intrinsically safe circuits.
The device is IP20 rated. It must be protected accordingly from adverse conditions, such as water spray or dirt, that exceed the conditions of pollution degree 2.
As an associated apparatus, the SK-PC-Z1D1-UU1-10-HS barrier is certified to lead intrinsically safe circuits into Zone 1/21 hazardous areas. It is a one-to-one data connector. Data is passed through without buffering. The SK-PC-Z1D1-UU1-10-HS barrier does not provide galvanic insulation.