27 51 00 Distributed Audio-Video Communications Systems 27 40 00 Audio-Video Communications 27 52 00 Healthcare Communications and Monitoring Systems 11 61 00 Broadcast, Theater and Stage Equipment
CSI Codes : 11 61 00 Broadcast, Theater and Stage Equipment, 27 40 00 Audio-Video Communications, 27 51 00 Distributed Audio-Video Communications Systems, 27 51 00 Distributed Audio-Video Communications Systems, 27 52 00 Healthcare Communications and Monitoring Systems