IP function, 4CH display and 4CH playback
Video input: 4CH composite video input (BNC, 1. 0Vp-p 75 ohms)
Video output: 1CH composite video output (BNC, 1. 0Vp-p 75 ohms), 1CH VGA output (frequency 60Hz, resolution 1024 x 768), 1CH S port
Video standard: PAL: 25fps/second/channel, 625TVL/NTSC: 30fps/second/channel, 525TVL

Audio input/output: 4CH audio input(RCA, 20-100mv, 10Kohm), 1CH audio input (RCA, 20-100mv, 1Kohm)
Alarm input: 4CH (N. O/N. C)
Alarm output: 2CH (N. O, relay close output)
Compression format: Video compression: H. 264; Audio compression: G. 722
Display resolution: Monitor display (704 x 576), VGA output (1024 x 768)
Recording resolution: CIF (352 x 288); Half D1 (704 x 288) (When 16ch switch to 8ch)

Operation mode: Triplex operation, record/playback/remote view or playback
Image quality: Half-D1 (1, 2, 3, 4, 5, 6 adjustable), CIF (1, 2, 3, 4, 5, 6 adjustable), 1 is the best quality
Remote controller: Yes
Operation system: RTOS (real time operation system)
PTZ control: RS485 port
Remote view: By Internet Explorer and PC-viewer software
Video retrieval: Alarm search/motion detection search/time and date search
Watchdog function: Yes
Disc connector: PATA, SATA
HDD support: Max. 4 hard disks
Network port: 10M/100M Ethernet port