Product Introduction
Board card model: HV-4204SC
　Dimensions: 121 (W) x 87 (H) mm
Ambient Operating Temperature: -20oC~75oC
Humidity: 20~98%
　Weight: 0.24Kg (include box and cable)

Specification explanation
　Video input (VGA 15 connection lines):
　4 channel

Audio input (VGA 15 connection lines)
　2 channels
　TV Output: RCA Connector x 1

Video resources
　PAL: 50 frames with All D1; 100 frames with Half D1/CIF
　NTSC: 60 frames with All D1; 120 frames with Half D1/CIF

Video sampling resolution
　PAL: Half D1 (704x288) / CIF (352x288) / Half VGA: 640 x 240 / QVGA (320x240)
　NTSC: Half D1 (704x240) / CIF (352x240) / Half VGA: 640 x 240 / QVGA (320x240)

Video/Audio processing chip (Techwell6805):
　10 bit video ADC with 4H filter and color correction and AGC function
　10 bit audio ADC; 10 bit audio ADC; 8 or 16 sampling output and the sampling frequency and GAIN can been adjusted.

Video display output:
　VGA preview display (whole screen or picture division)

TV output monitors screening (more channels patrol in turn)
　Compression ways:

H.264 / MPEG 4 / WMV3 compression formats for selection; outside hangs CODEC user-defined compression format as well
　Storage mode:

HV codes stream (can play together with J8000 hardware card format and can choose AVI document mode (the biggest single doc. is 2G)
　Alarm input/output:

20-bit input/output are matchable with GPIO trigger mode and Alarm may take another card or alarm boxes
　Cradle head / Vidicon control:

Each channel can process the control of cradle head/DV, support many protocols.
　Long-distance transmit:

The client-side and IE-side can monitor 36 channels in long-distance, control cradle head/DV in long-distance as well, supporting voice talkback.
　Network:

Support TCP/IP and UDP transmit, support many network accesses such as PSTN/ISDN/DDN/ADSL/LAN/WWW.
　Hardware platform and operating system
　Intel845/848/865/915/945/965 chips; C4 above 2.0G; 32 or 64 bit CPU; dicaryon or double dicaryon is better. (24 channels CIF in real-time need P4 3.0G or dicaryon above 2.8G)）

Windows 2000/XP/2003 operating systems; Linux operating system (Kernel 2.4.x or 2.6.x)
　Development support:
　Offer the system that is compatible with SDK access to JW8000 series DSP compression card
　Using with JW6000D4 decodes, picture and voice can export to monitor and TV, supply the complete solve project to network digital monitor.）
　Apply with 24 hours technical supporting (telephone, mail, Q/MSN is always on line)
　OEM/ODM may have custom-made the hardware and software (provides hardware encryption dog function to supply user twice encryptions)
　All products 3 months exchange guaranteed, a year maintenance, the lifelong is responsible to service