This 4-wire station family with 6 keys is especially made for camera intercom.

It is possible to connect up to 10 camera stations together.

Connector F (connector G for loop thru) is for camera 1-6.

Anyway each camera station can speak with their own cameras

or all camera stations can speak with the same camera.

Each combination is allowed.

For more 4-wire stations with 6 keys see the list on the left-hand side.