Meeting requirements for European Telecommunications Standards Institute (ETSI) applications, 13U AdvancedTCA chassis is offered in 23 in. size and has 16-slot, full mesh backplane and front-to-rear cooling. Dual redundant shelf managers can be plugged in card cage without sacrificing any of 16 slots. Along with fan trays above and below card cage, chassis includes cable management bracket, 2 RJ-45 jacks, and honeycomb air filter.