... , USB mouse, IR remote control, Keyboard, NetworkVideoInput8channel, BNC (1.0Vp-p/75Ω)StandardPAL system (25 frames / sec) NTSC system (30 frames ... / sec)Output1VGA, 1BNC(1.0Vp-p/75Ω)AudioInput4 channel, BNC(200-2000mV 10KΩ)Output1 channel, BNC ... compression,4Channel D1+4Channel CIF real-time preview,support DVD-RM function