j) Maintenance requirements, if anyk) Follow up of Special Tool configuration management"This information shall be supplied in MS Office Word or Excel format.For all Tools required for maintenance tasks (Preventive or Corrective) in the BLESS/UNILIFE/LSA tool (see section 2.3.1), the supplier shall also provide List and Drawings for Special Tools."4.1.2.3 Access Tools for “Electronic Control Units”Where communication with any Supplier’s Goods control unit on the Equipment is required, a standard laptop will be specified as a Special Tool, with the broad specification as follows:a) A compatible portable PC, running a proprietary operating system, which is compatible to MS Windows.b) The only permissible external connections between the laptop and the Equipment shall be Ethernet and USB (Universal Serial Bus) and Personal Computer Memory Card International Association (PCMCIA).c) It shall be possible to connect and disconnect the laptop and the system controller without having to reboot the system controller or computer (i.e. ‘hot plugging’) or use additional tools."Supplier’s diagnostic software (electronic control unit access software), the Access Tools for “Electronic Control Units”, shall be provided by the Supplier without license fee. BT shall have the right to use the software to fulfil their contractual obligations towards its Customer and to sell the software as a maintenance tool to the Customer. .The Supplier shall maintain and support its access software during the entire Design Life of the Goods."Ensure consistency between the software definition file and the rolling stock definition configuration: All the information in the definition folder must be compatible (and up-to-date) with all versions of the software installed on the hardware.4.1.2.4 Software Tools Catalogue