Description: Improved MPEG-4 8-way video input 8-way alarm input interface Frame rate PAL 0~25F/S adjustable, NTSC 0~30F/S adjustable Audio input, single track input, input scope p-p 2V, impedance 300Ω One-way RS232 interface One-way RS485 interface One Ethernet interface 10M/100M compatible, standard RJ45 interface, with condition indicator