MediaStar 3RU Chassis with Power Supply Unit (Models 770 and 770-DR)

The 770 and 770-DR are 19" 3RU chassis enclosures with integral Power Supply Units (PSU) to power and house any combination of MediaStar 'blade' based processor modules.

These include MediaStar Encoders, LAN-Casters, Re-Casters and Multi-Mux units which are supplied separately to the rack enclosure.

The rack is fitted with a single power supply unit (as part no. 770) or delivered with full “hot swap” dual redundant power supply capability (as part no. 770-DR)

These convert the AC mains input voltage to low voltage DC power for each of the processor modules and provide forced air cooling to the whole rack enclosure. Three LED indicators show the status of the 5 and 12 volt rails and cooling fan operation and where a 79x ‘blade’ is present in the rack, will signal status to the Media Manager administration system and optionally a corporate SNMP monitoring system.

When processor modules are fitted into the rack, their RF and Video/Audio inputs are accessible from the rear side, and network and control interfaces are available on the face. AC mains input to the rack is via IEC connectors on the rear.

Model option 770 can support up to nine blades, model option 770-DR up to eight.

Spare power supply units are available for both models as well as an upgrade kit to allow current field installed 770 single PSU models to be upgraded to dual redundant capability.

What's in the box

Rack chassis fitted with 771 PSU (model 770) or rack chassis fitted with 726 PSU (model 770-DR); Quick Start Guide; AC mains power cable(s); Rack mounting screw set.

Spare PSU units are available (Parts 771-RP and 726-RP) Dual redundant Upgrade kit (Part 770-RP-UG)

Key Features //

  • Compact - occupies only 3 RU of cabinet space
  • Provides power and ventilation for all MediaStar blade products
  • Integral PSU with LED ventilation fan warning and power rail status indicators
  • Signals operational status to MediaStar Media Manager or SNMP system
  • Both single PSU and dual redundant "hot swap" PSU options available


Power input:

  • 3 pin IEC Male(s), 100-240V AC, 2.2A to 1.0A, 47 to 63 Hz
  • ​AC power feeds for 770-DR racks should be independent and on the same phase for full redundant operation

Chassis Power Dissipation (both 770 & 770-DR):

  • 130 Watts (Typical)
  • 200 Watts (Maximum)

LNB Power:

  • ​3.0A (maximum draw for all blades installed in a 770 or 770-DR Rack Chassis)
  • Typical draw 450mA per DVB-S2 Blade


  • 3.60Kg (770 Rack Chassis and & 771 PSU)
  • 0.75Kg (771-RP PSU only)
  • 4.10Kg (771-DR Rack Chassis & 726 PSU)
  • 0.60Kg (726-RP PSU only)
  • 1.36Kg (770-DR-UG PSU and assembly only)
  • 8.30Kg with full compliment of processor modules (Typical)


  • W 48.2  H 11.5  D 21.4cm;     W 19  H 4.5  D 8.5"  3RU 19" Rack Mount. (770 & 770-DR Rack Chassis & PSU)​
  • W 6.20  H 13.0  D 21.0cm;     W 2.5  H 5.2  D 8.3" (771-RP PSU only)
  • W 10.2  H 6.50  D 19.2cm;     W 4.0  H 2.6  D 7.6" (726-RP PSU only)
  • W 10.0  H 10.0  D 20.5cm;     W 4.0  H 4.0  D 8.2" (770-RP-UG PSU and assembly sleeve only)​


Some of our clients
  • Arsenal
  • BBC
  • BMW
  • BP
  • Coca Cola
  • Freshfields
  • Google
  • GSK
  • Home Office
  • IET
  • ING Bank
  • King & Woods
  • MOD
  • Pfizer
  • Premier League
  • Prudential
  • PWC
  • RBC
  • RBS
  • Rio Tinto
  • Sainsbury's
  • Thales
  • Unilever
  • Virgin Active
  • WB