Certifications and compliances
- FAA AC 150/5345-5 Current Edition: L-847
- Unified Facilities Criteria UFC 3-5
The CSS Circuit Selector Switch is connected to the output of a single constant current regulator and switches that output to one or more airfi eld lighting series circuits. Common applications include circuits for PAPIs, stopbars, and taxiway centerlines. The CSS can also be used as the interface between a standby backup regulator and several operating regulators.