Topnos Inc
CTRing 960H Real Time CK1300 and CK3300 Series
Topnos Inc. introduces CTRing 960H real-time, CK1300 and CK3300 series. These real-time DVRs have adapted new hardware and H.264 high profile, offering faster and more stable performance with less data consumption. The main feature is the RS485 communication over coax cable, offering a useful time and cost saving feature when Pelco-C compatible PTZ cameras are installed.
https://www.topnos.com/product_k_series_k1.html