description: Pigtail cassette PLC Splitter is designed for installing in 19"standard rack and optical splitter unit.There are many types including O-type,L-type,P-type,S-type,R-type and U-type,which are all compliance with industry standards. Features: Small size and aesthetic appearance; SC adapter interface default,can change interface type; by the demand of customer; Installation quick,reliable performance,stability; Satisfy with industry standards YD/T893 and YD/T1117.