812. Network Interface: 10M/100M/1000M self-adaption Ethernet interface13. Power Consumption: ≤66W (71W Full load HDD)14. Power Supply: 220±30%V, 50±3%HZ, 110±20%V, 60±3%HZ optional2.2 Main FunctionsHigh effective RTOS and embedded processor are adopted in this series DVR, as well as all functions needed forthe monitoring system are integrated. Code is solidified in the flash chip to keep the system in high stability andreliability. System can also work in a long time surveillance environment and even in stringent circumstance.Note: The following features might differ from below description due to different hardware and software versions.◆ Compression Features1. Supporting PAL/NTSC video format signal.2. Video compression algorithm is H.264.3. Video and audio signals are compressed into H.264 code streams. Video and audio streams are synchronouswhen playback; audio recording can be canceled if video is needed only.4. Audio compression algorithm adopts G.711A, and every video/audio signal is compressed separately in real time,then generate composite compressed code stream. The video and audio streams are synchronous when playbackor setting disables audio with the sampling rate of 8K sample/sec., 16 bit/sample.5. Supporting dual stream compression: main code stream used for local storing, sub code stream used for imagetransmission in low-bandwidth network.6. 6 levels of record quality are available to select. Users can choose according to requirements so that the recordingtime is long enough.