Specification: Image system:NTSC/EIA PAL/CCIR Storage media:IDE TYPE Recording model:Manual/Alarm/Timer/Motion Video input:1Vp-p75¬+ BNC·+16CH Audio input:4 Audio output:2 Video update rate·ª120frame/s(NTSC),100frame/s(PAL·¼ Recording update rate·ª25frame/s·+NTSC·¼·+18frame/s·+PAL·¼ Data storage size: 150M-300M/Hour/one channel Character display·ªsix characters Video adjust:Color/contrast/brightness Alarm input:TTL input,Hi(5v),Low(Gnd) Alarm output:COM/NO Communication protocol:RS-232,RS-485 Time display format:YY/MM/DD,DD/MM/YY,MM/DD/YY,OFF Power input:AC100-240v+-10% Switching adaptor Power dissipation:f_32W working temprerature:10f¦-40f¦ RS-232 or RS485(bps):115200\57600\19200\9600\4800\3600\2400\1200 Dimension·ª432*110*325(mm)