System

language

Chinese/ English

Operation system

Linux

Operation interface

Graphical User interface(OSD menu)

Password

User /Admin password

Control mode

IR remote control

Video

Video input

4-ch video composite input

Video output

2-ch output(1-chΦ3.5 phone jack,1-ch 24pin jack)

Display mode

Single/ 4-ch video

Video compression

H.264 Main profile

PAL:100f at D1/s, NTSC: 120f at D1/s

Video Signal

PAL, NTSC

Audio

Audio input

4-ch audio input

Audio output

2-ch audio output(1-chΦ3.5 phone jack,1-ch 24pin jack)

Recording mode

Audio & Video sync Recording

Image processing & storage

Image format mode

CIF/HD1/D1 optional

Video stream Standard

ISO14496-10

Video bitrate

             CIF: 1536Kbps ~ 128Kbps,

HD1: 2048Kbps ~ 380Kbps,　

D1:  2048Kbps ~ 400Kbps

8 levels optional. Highest:1

level; Lowest: 8 level

Audio Bitrate

8KB/s

Storage

Support Dual SD card, Max 128GB(single),total 256GB;

Alarm

Alarm input

4 alarm input, below 4V is low level alarm, above 4V are high level alarm

Alarm output

1 alarm output, output high level:12V

Communication Interface

RS485 Interface

Support 2-RS485 interface

RS232 Interface

Support 1-RS232 interface

RJ45

RJ45 interface for external WIFI 802.11b/g,test,copy,set etc

Intercom

MIC

MIC+,MIC-

SPEAK

SPEAK+,SPEAK-