Model | DH9004 |
| Video Compression | H.264 |
| Video System | NTSC / PAL |
| Operation System | Linux |
| Video Input / Output | BNC 4-channel inputs / 1-channel output |
| Audio Compression | 8kHz*16bit ADPCM |
| Audio Input / Output | RCA 4-channel input / 2-channel outputs |
| Display Frame Rate | PAL: 100fps / NTSC: 120fps |
| Playback Resolution | PAL: CIF(352x288), HD1(704x288), D1(704x576) NTSC: CIF(352x240), HD1(704x240), D1(704x480) |
| Total Recording Frame Rate | PAL: 25fps@D1, 50fps@HD1, 100fps@CIF NTSC: 30fps@D1, 60fps@HD1, 120fps@CIF |
| Recording Mode | Always / schedule / motion detection / sensor triggered |
| Recording Pack Time | 15/30/45/60mins selectable |
| HDD Interface | Support SATA HDD & USB disk |
| Network Interface | RJ45, 10M/100M |
| Network Protocol | Support TCP/IP, UDP, DHCP, DNNS, PPPoE |
