2. A site (data centre/ work area) which is partially equipped with hardware, communications interfaces, electricity and environmental conditioning capable of providing backup operating support.
(Source: Business Continuity Institute - BCI)
3. An alternate processing site which is equipped with some hardware, and communications interfaces, electrical and environmental conditioning which is only capable of providing backup after additional provisioning, software or customization is performed.
(Source: Disaster Recovery Institute International / Disaster Recovery Journal - DRII/DRJ)
4. Partially equipped office space which contains some or all of the system hardware, software, telecommunications and power sources. The site may need to be prepared before receiving the system and recovery personnel.
(Source: ENISA - the European Network and Information Security Agency. BCM & Resilience Glossary)