The Eaton Cutler-Hammer 92-01977-02 operator interface terminal is a 7.7-inch color touchpanel terminal that allows the end-users to view and control remote analyzers from a central location conveniently. It is a multi-page mountable panel interface terminal that is easy to operate due to the sharp graphics that allow the operators to set alarms remotely through password protection, and to calibrate and change application settings easily. The physical dimensions at shipping are 7.08 by 8.83 by 2.3 inches in height, width, and depth, respectively, with panel cutout dimensions of 5.88 by 7.63 inches. It requires a 24 Volts DC power source with a 20% margin of error. The 92-01977-02 terminal has a backlight for its LCD screen that can show graphics in 256 colors, and the touchscreen can register a variety of touch commands. There is also a bezel for the terminal.

The Eaton 92-01977-02 operator interface terminal is rated for Class 1, Division 2, Groups A, B, C, and D environments and it has a NEMA 4X IP/66 environmental protection rating because of the bezel on the front. Simultaneously, the operating temperature ranges between 0 degrees Celsius and 50 degrees Celsius or 32 and 122 degrees Fahrenheit. The 92-01977-02 terminal works best with a non-condensing ambient relative humidity range of 0 to 85%. It can be stored at a maximum temperature of 70 degrees Celsius or at a minimum temperature of -20 degrees Celsius. It allows for multiple devices to be connected, including 3 Modbus devices, a Remote Terminal Unit (RTU) for interfacing, and an RS-485 half-duplex device. Additionally, there is an Ethernet port for an RJ 45 network interface card that can be used to host web pages.