Specification :

High resolution H.264, SD card Max.32GB * 2pcs, Compact size and easy installation
Operating language: Chinese/ English
Operation contact surface: Present in figures and diagrams menu operation contact surface( OSD menu)
Cryptosecurity: After the manager password management( manager establishes) , user cannot change content.
Video input: 4ch video input 1.0V, p-p, 75Ohm
Video output: 1ch output 1.0V, p-p, 75Ohm
Video frequency demonstration: Single picture/ four picture demonstration
Video frequency standard: PAL service pattern: 25/ seconds, CCIR625 TVL, 50 field; NTSC service pattern: 30/ seconds, CCIR525 TVL, 60field
Audio infut: 4ch audio frequency inputs
Image compression: H.264, Invariable symbol stream( VBR)
Image form: CIF/ HD1/ D1 may choose
Audio frequency class standard: ADPCM
Date Storage: 8kb/ s
Serial interface: Supports 1 RS232 connection, refers to the DB44standard; Supports 1 RS485 connection, refers to the DB44stsndard.