Parallel Redundancy
Parallel-redundant UPS architectures place two or more identical units side by side, sharing the load. In a 1+1 configuration both units carry half the load and either can take the full load if the other fails — a single-fault-tolerant design. N+1 generalises the concept to N working units plus one spare. The Sentinel Dual SDU page explicitly cites a 99.999% uptime target as the motivator. Parallel architecture also enables capacity expansion by adding modules without replacing the original UPS.
Implemented by
- Sentinel Dual SDU — 1+1 dual-parallel-redundant or N+1 configurations
- Sentryum — parallelable across all 1:1, 3:1, and 3:3 variants
Connections
- Sentinel Dual SDU — implements_feature, source: https://standbysystems.co.za/ups_products/sentinel-dual-sdu-4-10kva/
- Sentryum — implements_feature, source: https://standbysystems.co.za/ups_products/sentrym/