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Product Description
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Product Description
2.1
Intended Use and Function
The SK-PC-D2-UU1-10-HS USB intrinsic safety barrier enables a host device (i.e., an
industrial PC) that is in a non-explosion hazardous environment to be connected to an EXTA3
keyboard or similar USB device in Class I/Div. 2, Class II/Div 2, or ATEX/IECEx Zone 2/22
hazardous locations. The barrier is based on the entity concept and enables operation of input
devices, such as PC keyboards and trackballs. The barrier provides protected USB 1.1 or PS2
power and data signals to an Ex-rated mouse/keyboard in the field.
The barrier shall be installed according to all applicable standards and regulations for the
location in which it is being installed. The barrier is intended to be mounted on a 35mm DIN rail
within a properly rated equipment cabinet for the application area. When installed under
ATEX/IECEx, the barrier shall be in an ATEX/IECEx certified enclosure with a minimum ingress
protection rating of IP54. The barrier shall be used in an environment of not more than pollution
degree 2. This device contains no user serviceable components. Replacing internal
components may impair the safety of the device.
