Network Standalone DVR

We are offering network standalone dvr. Features:
> 4/8 ch video input, cif/d1 recording
> support vga, bnc synchronous output
> 4/8ch. Synchronous playback
> support mobile phone viewer (windows mobile/symbian/iphone/ android/blackberry)
> standard h.264 compression
> support multiple ddns (oray, 3322, dyndns)
> ptz control by mouse and controller
> 1 sata interfaces, support tb hdd
model xs-6504 xs-6508
main processor high performance embedded microprocessor
operation system embedded linux os
signal system pal/ntsc
system resource recording, playback, remote access
operation interface mouse, front panel, remote control
video split 1 / 4 split display 1 / 4 / 8 / 9split display
video resolution d1
video playback resolution cif/d1
bit rate control dual stream
image control 6 levels
recording speed pal:25fps/channel, ntsc:30fps/channel
motion detection configurable detection areas (22 * 18 blocks) and sensitivity
audio compression g.711
recording priority manual > alarm > motion detection > schedule
local playback 4channel synchronous playback 8 channel synchronous playback
playback search date, time, event, channel
video storage local hdd, usb hdd, network
backup mode local hdd, usb hdd, network
video input 4 channel bnc 8 channel bnc
video output 1 channel bnc, 1 channel vga (800*600 1024*768 1280*1024 optional)
audio input 1 channel rca
audio output 1 channel rca
ethernet interface rj45 10m/100m base-tx
ptz interface 1 * rs485
usb interface 2 *usb2.0
hdd/sata interface 1 * sata
power supply dc12v±10%
power consumption