Centralize The Selection Of Suppliers To Establish The Procedural And Execution Conditions For The Contracting Of Maintenance Services For Technological Equipment That Are Within The Facilities Of The Participating Entities. The Subjective Scope Of This Sda Is Made Up Of: 1. The Entities Initially Attached To The Sda (Henceforth, Group A) Are, - Universitat Autònoma De Barcelona (Uab), Participates In Category 1. - University Of Lleida (Udl): Participates In Categories 1, 2 And 3. - University Of Girona (Udg), Participates In Categories 1 To 9 And 11 To 13 - Universitat Rovira I Virgili (Urv): Participates In Categories 1 And 3. - Fundació Universitat Oberta De Catalunya (Uoc), Participates In Categories 1 To 13. - Consorci De Serveis Universitaris De Catalunya (Csuc), Participates In Categories 1 To 9 And 11 To 13. The Sda Is Articulated In The Following Categories: - Category 1: Server Maintenance. - Category 2: Network Equipment Maintenance. - Category 3: Maintenance Of Storage And Backup Systems. - Category 4: Maintenance Of Uninterrupted Power Supply Systems And Generator Sets. - Category 5: Refrigeration Equipment Maintenance. - Category 6: Door Maintenance And Access Control. - Category 7: Elevator Maintenance. - Category 8: Maintenance Of Fire Detection And Extinguishing Systems. • Category 9: Maintenance Of Technological Equipment For Classrooms. • Category 10: Maintenance Of Technological Equipment By Laboratories. • Category 11: Garden Maintenance. • Category 12: Preventive Maintenance Of Facilities And Equipment. • Category 13: Maintenance Of Lifting Platforms And Maintenance Vehicles.