| tem | Description |
| OS | Linux |
| Graphics Operation Interface | System parameters can be set through external display and remote
controller |
| Security Management | 2-level management for user password, administrator password,
supporting encrypted transmission |
| Video and Preview | Video Input, Output | 4-channel video input, 1channel video output; 1.0Vp-p, 75Ω |
| OSD | Character superposition function, information superposition of time
and date, device ID and GPS, etc. |
| Video Compression Format | Compression coding. Applying hisilicon hi-performance processor. |
| Dual-Stream | Supported |
| Preview Function | Preview of 1-channel, 4-image stitching, supporting full screen
triggered by event and switching of stitched images |
| Frame Rate | PAL: 100 frames/s, up to 25 frames/s per channel; NTSC: 120
frames/s, up to 30 frames/s per channel |
| Resolution | CIF, HD1 and D1 for selection, supporting 2 channels of D1+ 2
channels of CIF at the most |
| Quality | Grade 1 to grade 5 for selection (descending) |
| Bit Rate | CIF: 256Kbps ~ 1.5 Mbps, 8-level bit rates for selection HD1: 600Kbps ~ 2 Mbps, 8-level bit rates for selection D1: 800Kbps ~ 3Mbps, 8-level bit rates for selection |
| Audio | Audio Input, Output | 4-channel input, 1-channel output |
| Compression Format | G.726 coding |
| Recording | Storage Medium | Supporting one 2.5” hard drive and one SD card, which supports up
to 32G, supporting data redundancy storage technology; |
| File Format/ System | ASF/FAT32 |
| Video Strategies | Recording at startup by default, supporting timed recording,
recording triggered by alarm and event, as well as manual recording |
| Video Search | Searching by time, type, storage device and other conditions |
| Video Playback | Supporting playback on local device, supporting synchronous
playback of up to 4 channels and analysis on vehicle information in
the files |
| Supporting fast forward, fast backward, play and pause, supporting
fast forward and fast backward at 2x, 4x, 8x and 16x speed,
supporting file play from selected time |
| Alarm | Alarm Input/ Output | 6-channel on/off signal alarm input, 1-channel on/off signal alarm
output |
| Alarm Recording | Prerecording function 15 seconds before alarm, duration of
recording after alarm can be adjusted from 30s ~ 30min |
| Storage Space Alarm | Supporting settings for alarm of storage space |
| Function Alarm | GPS overspeed alarm, acceleration alarm, motion detection alarm |
| Communication Ports | RS232, RJ45 10M/100M self-adaptable network interface |
