Click image to enlarge Hydra
Multi-channel Video Streamer / Server

The HYDRA system is a rugged multi-channel video acquisition and network video server / streamer system. The HYDRA unit can capture, encode and stream up to 12 channels of video and a single channel of audio over an Ethernet LAN using a variety of compression levels and streaming rates.

The system is designed for video surveillance in harsh environments and is suitable for use in both static and vehicle installations.

The HYDRA system produces an industry standard MPEG-4 video plus audio stream using a standard RTP/RTSP IP stream. The HYDRA can be customized with additional application software if required for specialist installations.

The HYDRA is configured and controlled using a series of HTML web pages which are viewed on any web browser. The control screens enable the user to optimize the compression settings to suit networks with different bandwidth capabilities.


  • Up to 12 channels of live video inputs (PAL/NTSC).
  • Single channel audio input.
  • MPEG-4 video compression option:
    • 12 channels at D1 image size at 1/4 frame rate (7.5fps NTSC or 6.25fps PAL)
    • 9 channels at D1 image size at 1/3 frame rate (10fps NTSC or 8.3fps PAL)
  • 9 – 40v DC powered operation with supply transient protection.
  • Industry standard RTP/RTSP video/audio stream.
  • HTML configuration management screens.
  • Standard 10/100baseT Ethernet LAN port.
  • MIL-STD-810F environmental compliance.
  • Wide operating temperature range (-20°C to +50°C).
  • Environmental protection – IP54.
  • EMC CE compliant.
  • STANAG 2338 Infrared Reflective paint finish.
Supported Platforms Windows 7, Windows 8, Windows 10, Linux
Video Input
  • Up to 12 channel composite video input channels Standard CCIR601-NTSC, CCIR-PAL, Software selectable brightness, contrast and saturation control
  • 1V peak-to-peak (75ohms input impedance)
Video Input

MPEG-4 video compression.
ISO/IEC 14496-2, MPEG-4 ASP @ LEVEL5.
9 channel mode D1 size images at ⅓ frame rate.
12 channel mode D1 size images at ¼ frame rate.
Programmable I-frame interval, quality level and bit rate.

IP Stream Latency

800ms (typ).
Based on 12 PAL channel inputs with encoding at D1 resolution, ¼
frame rate at 3Mbps /channel

Audio Input

Voice quality mono (1Vrms)
Provides Audio/Video Synchronization

Audio Compression

8bit 8KHz u-Law 64Kbps.

Ethernet Port

IEEE802.3 10/100baseT.


9 to 40v DC.
1.2A at 24v (typ.) or 2.0A at 12v (typ.) ≈ 30W.
Protected against reverse voltage, over voltage and transients


-20ºC to +50ºC.
Passive cooling (no fans).

Physical Aspects

260mm (length), 165mm (high), 180mm (wide) (Weight : 4.05Kg)
Anodized aluminium alloy extrusion enclosure
Rubber base-plate and stainless steel fixings
End plates sealed with rubber gasket.
STANAG 2338 compliant Infrared Reflective Paint.

Compliance specifications

EMC Immunity: EN61000-6-1:2007 – Generic immunity tests for
Information Technology Equipment including:
EN61000-4-3 RF field immunity
EN61000-4-6 RF common mode immunity
EN61000-4-4 Fast transient
EN61000-4-2 ESD
EMC Emissions: EN55022: 2006 A1 (Class B) – Conducted /
radiated emission tests for Information
Technology Equipment
Vehicle Immunity: ISO7637-2:2004 – Electrical transient
conduction on vehicle power lines
(Pulses 1, 2a, 2b, 3a, 3b and 4)
Vibration: MIL-STD-810F Test method 514, Procedure I
for General Vibration (Category 20: Ground
Thermal Shock: MIL-STD-810F Test method 503, Procedure I.
Enclosure sealing: IP54 (compliant against ingress of dust and
water spray – assuming supplied connector
covers are used on

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