The final solution included 18 UPS systems including 4 hour autonomy for critical applications, rack mount UPS, central 3 phase UPS for the computer room and five 'High Availability' UPS system for communications and IT applications Keysource have supplied and installed many UPS systems at Hilton hotels throughout the UK and recently completed a full audit, first level maintenance and remedial work on more than 300 UPS systems in UK Hilton hotels As Mitel's preferred supplier of UPS and power solutions Keysource were consulted to recommend a range of UPS solutions for both telecom and IT applications