Application: Telecom Maintenance CCTV Maintenance Comprehensive cable construction system Optical instruments research and development Optical communication education and lab testing Other optical project > Features: 2*1.25Gbps full-duplex fiber ports and 2*10/100/1000M Ethernet ports with auto-negotiation function UTP up to 100 meters ; longest 3 km single-mode fiber Supports broadcast storm prevention function Support IEEE802.3X duplex flow control and half-duplex backpressure flow control Support full / half duplex mode Ethernet interface can adaptively direct line / crossover cable connection Has 10M/100/1000M adaptive capacity Compliance with IEEE802.3 10Base-T and IEEE802.3u 100Base-TX, 100Base-FX standards Parameter: Storage temperature : - 40 ~ 70 degree Working temperature : 0 ~ 50 degree Built- in lightning protection circuit , which can greatly reduce the damage caused by lightning induction Weight: 0.16 KG Dimensions: 23x12x5 CM