The input protection circuit may include a fusible device that limits or removes a fault condition present at an input to the input protection circuit.
A method and apparatus for improving the fault protection of a monitor circuit is provided by coupling an input protection circuit to an output section.
An entrance protector (26) is provided which comprises an entrance protector clip (27) that at least partly covers the side sill (23).
The entry protect status is changed to indicate the entry protect status is set to block access to the copied data.
Said protective structure is then removed after the semiconductor elements are layered together, thereby preventing ESD damage to input terminals that do not have input-protection circuits.
The ingress protection means comprises a sealed volume surrounding the contact means.
The keyhole cover is simple in structure, and easy to operate.
In the invention, a keyhole protector (2) is combined with the drilling protector of a lock cylinder (1).
Ingress protection standards can be met by the shock sensor with a simplified structure.
Access to the copied data for which the entry protect status has been changed is selectively blocked.
A keyhole cover comprises a bottom case (1), a top cover (2), a motor (3), a motor gear (4), a sector gear (5) and a cap-shaped sealing element (6).