This article provides information about the E-Series Input/Output Panel? Accessing the Input/Output Panel

To access the input/output (I/O) ports, remove the I/O cover at the left of the unit.
A security screw is included and may be used to secure the front cover to the touchcomputer. Below are the I/O descriptions:

• Note: As a safety precaution, always leave the I/O cover attached when the system is powered on.