The present invention relates to both a trench box, the use of a trench box and the method for using said trench box. The unitary removable barrier is composed of a single piece body having at least one cylindrical section sized to receive upstream and downstream pipes of the water line. The disclosed alternate arrangement uses the PPD for those printer options and features that can be specified by PPD. Each of the second interfaces has a second framer for converting the communication frame received from one of the internal lines into information frame in a second format to be transmitted to the second optical line group. The optical system may be used in a photolithography tool to pattern substrates such as semiconductor substrates and thereby produce semiconductor devices.