Contact Closure Fiber Converter with In-Band Management | Network Switch & Media Converter Manufacturer | CTC Union

The FRM220-CCF contact closure fiber converter comes in two models, one with 2 channels (CCF20) and one with 4 channels (CCF40) and provides the transmission of contact closure over a single fiber optic link. With SFP cage on fiber ports, the FRM220-CCF gives you the fiber cabling connector SFP-LC, both multi-mode and single-mode, as well as BiDi which allows bi-directional transmission using only a single fiber core. The FRM220-CCF has contact inputs and 0.5 amp contact output relays. The relay output follows the “relay input” from the remote end. When the remote “relay input” is shorted, the local relay output is closed and vice-versa. Any one of the relay outputs can be configured to close when “carrier loss” is detected from the remote end. (Either through a CH01M console or via NMC in managed chassis.) Carrier Loss indicates that the optical fiber is disconnected or that the remote end has lost power and is not operating. This "carrier loss" relay can then be connected to an appropriate alarm circuit. CTC Union is high-quality Contact Closure Fiber Converter with In-Band Management, 4ch / 2ch Contact Closure Fiber Converter Card manufacturer from Taiwan since 1993. CTC Union is a leading Taiwanese manufacturer specializing in telecommunication products such as L2 Ethernet switches, transponders, and industrial Ethernet switches, converters, and injectors. The company maintains strict control over product design, ensuring compliance with certifications like CE, FCC, UL, IEC 62443-4-1, EN50155, EN45545-2, and IEC61850-3. CTC Union has established strong global partnerships with voice and data carriers, enterprises, and industrial Ethernet users, providing direct engineering and technical support from its headquarters in Taipei, Taiwan. With more 30 years professional experience, CTC Union is a Taiwan manufacturer of telecommunication products and industrial Ethernet switch, converter, injector. Strictly control all product design.