Supply of Input card compatible with existing UFSBI system , Output card compatible with existing UFSBI system , CPU card compatible with existing UFSBI System , Control and Communication card compatible with existing UFSBI system , Modem 4 wire Voice compatible with existing UFSBI system , Modem E1 compatible with existing UFSBI system , DC DC Converter Hot standby Type , Mother Board compatible with existing UFSBI system fitted in 6U Rack. , Reset Box , Flat cable set , Power Monitor and Soft Start PMSS , Block Telephone Complete with PTT handset suitable to work with Block Panel and UFSBI of Deltron make , Mushroom Head Push Button Switch with 1 NO 1NC or 2 NO Config Of ESBEE make suitable to work with Block Panel , Key Switch with 1 NO 1NC or 2 NO Config Of ESBEE make suitable to work with Block Panel , Key Switch with 1 NO 1NC or 2 NO Config of SIEMENS make suitable to work with Block Panel , LED Suitable for Block Panel RED YELLOW GREEN , Supply of Automatic Media Changeover of modems working on redundant channels for data transmission on OFC Quad