Before the start of the FAT, the system is built, configured, programmed and tested in accordance with customer requirements and all system documentation is completed. This means that all Switching Sites, Base Station Sites (BSSs), the redundancy mechanism (if applicable) as well as the carrier frequencies are configured and tested. To perform the functional tests, several test terminals are configured for use during the FAT. Project-specific functionality (if ordered) is configured and tested by Rohill during a dedicated internal pre-FAT.
The FAT is above all a check to proof that the system is as ordered, that it works according to specifications and, finally, that it is ready for shipment.
The first step in the FAT process, which takes place before the actual FAT, is for Rohill and its Partner to agree on and establish the FAT protocol. The FAT protocol describes all relevant FAT tests and procedures and will be used as a guideline during the FAT process.
The second step is to check the completeness of the ordered system, including the ordered spares parts and system documentation.
The third step in the FAT process is a visual inspection of the installation of the equipment. Equipment is installed in racks as agreed beforehand and as described in the as-built documentation.
The fourth and final step, the most time-consuming step in the FAT process, is the validation of the system performance and functionality. Although FAT tests can prove that TetraNode functionality is according to specs, a FAT cannot guarantee 100% proper operation under all conditions in the field. In order to minimize the risk of improper operation in the field, it is important to validate the system in the configuration as it will be used in the field by the end user. Therefore, the customer is invited to bring his own terminals in the configuration and to provide as much project-dedicated specifics as possible into the FAT process. If it is not possible to validate performance or parameters during the FAT, verification has to be done at installation on site or during commissioning of the system in the field.
The result of the FAT process is written down in a FAT statement and is signed by the Rohill project manager and a representative of the Rohill Partner. If the FAT process is witnessed by the end-user, a representative of the end-user will be invited to sign the FAT statement as a witness. Rohill aims for a positive conclusion, meaning that the FAT has been accepted and the system is ready for its intended use. If the FAT is indeed accepted, the system is ready for shipment and installation on site.
For more information about the FAT, contact your Rohill Sales contact or firstname.lastname@example.org.