The 1770-FCC module keyboard manufactured by Allen-Bradley/Rockwell Automation has an operating line voltage rating of 120 Volts AC and an operating line frequency of 50 to 60 Hertz. It also has a fuse rating of 1 Amp at 120 Volts AC. When installing the Allen-Bradley 1770-FCC keyboard, the users will need to follow these steps. First, unfasten the screws on the connector cover of the keyboard and detach the cover from the keyboard. Second, ensure that the power is switched off. Third, lift and shift the locking lever to unlock it. Fourth, line up the 2 support pins properly on the keyboard with the chassis’ bushings on the front and install the keyboard. Lastly, to lock the keyboard, lift and shift the locking lever. back into position.

When the users press [SHIFT][MODE] on the Allen-Bradley 1770-FCC keyboard, the screen will display the two-mode selection which includes the PLC-3 and Alphanumeric Mode. If the users select the Alphanumeric Mode, the industrial terminal system becomes a data terminal. It is able to communicate with computers, modems, or other devices such as the RS-232-C device attached to Channel B. The users can press one key at a time, but not 2 keys at once like on other data terminals. The Allen-Bradley 1770-FCC keyboard module has functions such as editing, monitoring, and loading instructions for Allen-Bradley programs and generating messages for the ASCII report. It has an operational ambient temperature range between -0 and 55 degrees Celsius and an ambient storage temperature range from -40 to 65 degrees Celsius. In addition, it has an non-condensing ambient humidity between 5% and 95%.