FSM40SB delivers the benefits of PAS core alignment splicing in a field-friendly, highly portable, mini-splicer package. Ergonomic features allow the FSM-40S to be used in difficult aerial taut-sheath splicing conditions, which require proper workflow and minimal fiber slack. This splicer has been designed for use in harsh, outdoor conditions and features an innovative wind protector, which allows splicing in 30 mph cross winds. The FSM-40SB offers identical functionality with a front-mounted tube heater and rear-mounted monitor.