# Add/Edit RTU

To Add a Remote Terminal Unit (RTU):

If you have not done so already, start Alarmware™. This will automatically launch the Select RTU dialog box. You may add an RTU to the list by simply clicking on the Add button, and entering basic information.

The information required includes:

- Name -- Choose a name that will uniquely identify the remote terminal unit (RTU).
- Phone Number -- Enter the phone number of the phone line to which the RTU is connected, exactly as it will need to be dialed from the computer running Alarmware™. Be sure to include any necessary prefixes or delays. Enter a comma for each one second of dialing delay desired.
- Serial Number -- The serial number will automatically be downloaded from the RTU the first time you connect to the RTU.
- RTU Model Number – Choose the proper model number from the pop-up list.

Enter the required information, and click the OK button. The RTU you just added is now displayed in the Select RTU list. To edit existing RTU information, simply double-click on the RTU you wish to edit, or select the RTU and click the Edit button. Modify the RTU information, keeping in mind that the model number must be correct for Alarmware™ to connect to the Catalyst.

Note: Alarmware™ will use the model number to determine the number and types of channels configured for the RTU,therefore correctly selecting the model number is critical to proceeding with other configuration work.