OPTI-UPS On Line UPS Series DSD31 / DSD33 manuale d’uso download
- OPTI-UPS On Line UPS Series DSD31 / DSD33 manuale d’uso download
Italiano 
- Bedienungsanleitung OPTI-UPS On Line UPS Series DSD31 / DSD33
- OPTI-UPS On Line UPS Series DSD31 / DSD33 manual
- Mode d'emploi OPTI-UPS On Line UPS Series DSD31 / DSD33
- Инструкция по эксплуатации OPTI-UPS On Line UPS Series DSD31 / DSD33
- Manuale d'uso OPTI-UPS On Line UPS Series DSD31 / DSD33
- Manual de instrucciones OPTI-UPS On Line UPS Series DSD31 / DSD33
- Manual de uso OPTI-UPS On Line UPS Series DSD31 / DSD33