| 摘要 |
The security-related device (10) has a safe output unit (20) with a safe switch output terminal (24) and another terminal (25) for switching an electrical load (40). A safe, controllable output switch unit (23) is formed to generate switching signals for safe switching of the electrical load. A test unit (28) is connected with the output switch unit and is formed to execute a light- or dark test for generating a switch-on and switch-off pulses. A protection switch (30) is connected with the switch output terminal and the latter terminal. |
