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# Which kind of devices, I/O module  I need to use if I want to build a parking system?

|| **Question** 
which kind of devices, I/O module I need to use if I want to build a parking system where have to open and close barriers when a vehicle trys to enter or leave? Can you provide me with a wiring diagram such a system?

| **Answer**
it will depend on if the cameras have IO built in or if you are going to be integrating with an access control device but email support@cathexisvideo.com with all the info.

**Please find the links to our ANPR section**:

||| https://cathexisvideo.com/video-management-software/automatic-number-plate-recognition/


**Browse through our useful tutorial videos and manual resources that can be found using the links below:**

||| https://cathexisvideo.com/support/tutorial-videos/

||| https://cathexisvideo.com/support/manuals/