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Home IP Cameras and Codecs H.264 Digital Video Encoders 4 Channel Digital Video Encoder with Hard Drive

4 Channel Digital Video Encoder with Hard Drive

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DVS-8504E-H 4 Channel Digital Video Encoder with Hard Drive

4 Channel Digital Video Encoder with Hard Drive

The DVS-8504E is a standalone H.264 video encoder. It can connect up to 4 analog video cameras and transfer these streams from analog format to digital format simultaneously through H.264 video compression technology. The DVS-8504E provides high resolution and various video layouts from 1CH/ D1 to 4CH/ CIF and can also delivers multiple or individual  configurable video streams at the same time. The DVS-8504E-H can be also provides dual-stream transmissions for recording and monitoring. The built-in SATA interface enables powerful storage capability for the DVS-8504E to do the video streaming transmission and local storage at the same time. The web management offers the user convenience access to detailed alarm detection and actions.

4 Channel Digital Video Encoder with Hard Drive schematic


  • Multiple H.264 streams
  • D1 resolution @ 30FPS, CIF resolution@120FPS
  • 1-CH D1 / 2-CH 2CIF / 4-CH CIF
  • Built-in Web server for management
  • Supports HTTPS and password protection
  • Supports 3.5” SATA hard-disk tray for local storage
  • Provides main and sub video streams with different resolution
  • Supports logic (AND / OR) event alarms
  • Supports two-way audio
  • 4 Digital Input / 2 Digital Output connections
  • Supports privacy mask
  • Fan less design


Video Compression: H.264/M-JPEG
Video Stream: Main Stream, Sub stream (Main Stream to select D1 or 4CIF) (Slave stream only to select CIF or QCIF)
Video Resolutions:

  • D1: 720x480(NTSC)/720x576(PAL)
  • 4CIF: 704x480(NTSC)/704x576(PAL)
  • 2CIF: 704x240(NTSC)/704x288(PAL)
  • CIF: 352x240(NTSC)/352x288(PAL)
  • QCIF: 176x120(NTSC)/176x144(PAL)

Operating System: Embedded Linux
Video bit rate: 32K/64K/128K/256K/384K/512K/768K/1024K/1.5M/2M
Video Frame Rate: 1 ~ 30 FPS
Video Quality: 5 levels (Medium, standard, good, detailed, excellent), Auto
Video Input: 4, BNC, 75 ohm, 1 Vp-p
Video Output: 1, BNC, 75 ohm, 1 Vp-p (D1/4CIF supported full screen, 2CIF/CIF supported quad mode)
Network Connector: RJ-45, IEEE 802.3 10Base-T, 802.3u 100Base-TX
Audio Inputs: 4 channels mono audio (RCA)
Audio Output: 1 channel mono audio (RCA)
Audio Compression: ADPCM G.711
Audio Stream: Two-way (H.264 only)
Input / Output Signal: 6V p-p, +10dBm max
Input / Output Impedance: 600 ohms
Terminal Block: 1xRS-485 (DB9 interface), 4 alarm input, 2 alarm output
PTZ Protocol: Pelco D, P
PTZ Baud Rate: 2400, 4800, 9600, 12800, 19200 Kbps
PTZ Control Speed: Pan, Tilt, Zoom, Focus, Iris
PTZ Preset: 32 Preset positions
PTZ Patrol: 4 Tour mode (Each mode has 10 positions)
Remote Management: Web (CGI), SNMP v1/v2c
Dimension: Line card type: 238 x 257.4 x 44mm (W x D x H)
Operating condition: -10 to 60 degree (Celsius)
Storage condition: -20 to 85 degree (Celsius)
Operating Humidity: 0 to 95% (non-condensing)
Power Input: 12VDC, 2A
System Reset: Reset button (factory default)
LED Indications: Power, LAN, video status
Motion Detection: Drag and drop configurable detection windows
Configuration Backup /Recovery: Web browser
Firmware Upgrade: Web browser
NTP: Sync with PC, Sync with NTP server, Manual
Video Adjustment: Brightness, contract, saturation, color tone level
User Account: Up to 10 user accounts for configurable
Event Action: FTP, E-mail, DO1, SMS, SNMP, remote storage, PTZ preset
Event Sending Path: FTP; E-mail (forwarding JPEG picture)
Digital Zoom: 4x
Snapshot: Live view mode (JPEG format)
Playback: Playback via IE browser
Event Define: User define video frame rate and video resolution and video quality when alarm input and motion detection
Text Overlay: Configurable text color, background color, date/time, display position
Privacy Mask: Support 3 privacy mask window
System Language: English
Log: System log, operating log

4 Channel Digital Video Encoder with Hard Drive panel