... cable. It is easy to connect, CCTV security and Surveillance equipment by using standard structured cabling techniques. ... NT-621Environment Close-Circuit TV (CCTV) equipment for security and surveillance Devices CCTV cameras, monitors, switchers, sequencers, ... multiplexer, digital video recorders (DVR) and other CCTV equipmentTransmission Transparent to the userBandwidth Video: DC to ...