Fusion Splicer, OTDR, Fiber Optic Training, Services, and Rentals at Fiber. Small Faces Small Faces Rar. Optic. com. Sign up to receive product promos announcements, training opportunities and more straight to your email inbox. Fiber. Optic. com Newsletter View Fiber. Optic. coms Newsletter Archive Fiber. Optic. com Newsletters. SC-connector.jpg' alt='Fiber Patch Cord Connectors' title='Fiber Patch Cord Connectors' />Company Profile. DanChief Technology Co., Ltd. Danchief is a Digital connectivity expert, a professional OEM, ODM manufacturer specializing in cabling, media. Various products with UL ETL DELTA certified, quality is our pride For over 30 years experience in this field, we own good reputation in the world. With strong. VFLs work well for exposed lengths of fiber near a patch panel by illuminating bad connections and breaks. They are not very helpful for cable runs more than a few.