Customizable Core Count: Available in 12, 24 cores or fully customized to meet specific requirements. Flexible Connector Options: Supports SC/APC, SC/UPC, LC, ST, and FC connector types. High-Quality. Optical Distribution Frame (ODF) is a device used in fiber-optic telecommunications networks to connect, manage and distribute optical fibers from incoming and outgoing cables. It also serves as a matrix for routing signal lights and common. GPX-4822 Rack Mounting Enclosure is designed for standard 19′rack. According to customers′ needs, the enclosure can have 12,24,36,48,72 fibers, suitable for FC,SC or duplex LC adapter.