1.Operating language Chinese/English
2.Operation contact surface Presente in figures and diagrams menu operation contact surface (OSD menu)
3.Cryptosecurity After the manager password management (manager establishes, user cannot change content
4.Video input 4 CH compound video input 1.0V, p-p, impedance 75 Ohm
5.Video output 1 CH compound video output 1.0V, p-p, impedance 75 Ohm
6.Video frequency demonstration Single picture/four picture demonstrations
7.Video frequency standard PAL service pattern, 25/seconds,CCIR625 TVL,50 Field
NTSC service pattern, 30/seconds, CCIR525 TVL, 60
8.Audio frequency input Four CH audio frequency inputs (may arbitrary selection group to four groups), the impedance 600 ohm; The PC broadcast software can choose opening to close any group audio frequency.
9.Audio frequency compression ADPCM/G.726
