SHEN ZHEN VISITION DIGITAL TECHNOLOGY CO., LTD

EM-4004AVHT Series

One Chip 4ch Audio & Video Compression Card

Product Description:

　　　　（H.264 algorithm）Compression Card are 4ch audio and video real-time synchronous compression cards elaborately designed by visition for today's security field. They have high performance, ultra high cost effectiveness and strong competitiveness. It adopts the latest DSP technology and it is characterized by low power consumption, small size board, clear image, complete functions, supporting high channels (more than 60ch) audio & video synchronous compression, high reliability, stability and so on.

Main Characteristics:

· H.264 hardware preview, hardware compression, audio and video real-time 　synchronization

· H.264 audio and video real-time compression and compound is completed by 　hardware and do not occupy CPU resource.

· Video compression bit rate mode supports CBR / VBR, and is easy to control

· The adjustment range of video compression bit rate is wide (16Kbps~1Mbps).

· OSD is achieved through software. It has good stability, and supports the 　shelter and logo setting

· Small board, low power consumption, high stability.

· H.264 compression frame rate is adjustable.

· Support watermark technology.

· have interface for audio monitor

· Support synchronous compression more than 60ch. Each channel controls taking on 　or taking off and adjusts parameters independently

· Sensitive multi windows motion detection, don’t occupy CPU resource.

· During compression, the interface of audio monitor interface can be controlled 　through software

· Alarm input and output

· Applies to image transmission on low-bandwidth network

Special Functions:

·Video compression bit rate mode supports CBR / VBR, and is easy to control

·OSD is achieved through software. It has good stability and supports the shelter 　and logo setting.

·The adjustment range of video compression bit rate is wide (16Kbps~1Mbps).

·Support multi-channels synchronous compression (60 channels and more)

·Applies to image transmission on low-bandwidth network

Technical Specifications:

slot：33M, 32bit PCI, 3.3V/5V/12V	Video input interface： BNC input terminals
Audio streams standards：PCM	Audio input interface： BNC input terminals
Video streams standards： ISO/IEC 14496-10 H.264	Video input impedance：75Ω
Audio sampling rate：8KHz	Audio input impedance：600Ω
Video bit rate：16K~1Mbps	Video input range：Vp-p=1V
Frame rate ： 25frame/s（PAL）、30frames（NTSC）	Audio input range：Vp-p=2.0V
Resolution ratio 352288 (PAL) 、352240（NTSC）	Power：4 channels＜5W
Audio bit rate：64kbits	Size：4 channels：148㎜×107㎜
Operating system: Windows 2000/ Windows XP