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IQH4B 4RU Frame

IQH4B enclosures offer industry-leading, high-density delivery of modular solutions, primarily for use with IP modules. With up to 700W of module power available this 4 RU enclosure accepts up to 20 modules, has dual redundant PSUs and in-service replaceable cooling fans. Analog reference signals can be distributed through the enclosures via two connections that can be independently selected by the installed modules. Control and monitoring is included as standard using the latest generation Gateway (IQRCG) control card that has its own module-style rear connector, providing improved (faster) control template access, HTML5 web browser connectivity, dual Ethernet support with DHCP and improved...


  • 20 single- or 10 double-width modules (or any combination)
  • Plug-in gateway communications card to enable control via RollNet and over TCP/IP Dual 1 GbE connections
  • Fast control access with full menu and control caching for all modules
  • Integrated HTML5-based web browser access for enclosure and module configuration and control
  • SNMP control and monitoring of ALL intelligent IQ modules as standard
  • Dual Ethernet with DHCP support, failover rules and RollCall+ auto-discovery
  • Dual redundant network architecture over Ethernet and RollNet enables mission critical control applications to function even if a complete network failure occurs
  • 2x analog reference signal distribution for dual standard (bi-level or tri-level), dual video standard (SD or HD), and reference redundancy applications with reference status reporting (Note: Only applicable to modules with -B order codes)
  • Hot swappable redundant power supplies and in-service replaceable fan units
  • Optimum use of rack space — frames do not require any additional ventilation spacing
  • Variable fan speed, dependent upon load and ambient temperature
  • Full chassis monitoring, including inlet and outlet temperature, PSU, fan and module status
  • Door status monitoring (open/close)
  • Full CE and UL compliance


Inputs, Outputs and Controls


RollNet remote control: BNC connector

  • GV Orbit/SNMP over TCP/IP

10/100/1000baseT dual Ethernet

Controls via GV Orbit Remote Control System

Full control via HTML5 interface (available from chassis), any hardware RollPod control surface or GV Orbit.

General Specifications

Module complement: 10 double-width or 20 single-width (or combinations of both) fitted vertically

Module card dimensions:
100 x 340 mm (3.9 x13.4 in.) (WxL)

Module rear panel dimensions:

  • Height: 129 mm (5.1 in.)
  • Double width 40.4 mm (1.6 in.)
  • Single width: 20 mm (0.8 in.)

Input voltage range: 100-240V 50/60 Hz

Input connector: IEC320 C14

Power consumption: 1000 VA maximum

Modules power dissipation: 700W/700 LU maximum

Output: +12V and -7.5V ±5%

Note that all modules have built-in power supply fuses.

CE Performance Information
Environment: Commercial and light industrial E2 immunity, controlled EMC E4 emissions

Peak mains inrush current following a 5 second mains interruption: 35A @ 230 VAC

Analog reference:

  • 2x analog reference inputs
  • Black (HD tri-level and SD bi-level) and Black Burst (SD bi-level)
  • SD bi-level – RS170A
  • HD Tri-level – SMPTE ST 240, SMPTE ST 274 and SMPTE ST 296

Connector/format: BNC/75Ω panel jack

Analog reference return loss:

  • SD bi-level > -40 dB to 5.5 MHz
  • HD tri-level > -30 dB to 30 MHz

Temperature range: 0 to 40° C (32 to 104° F)operating, -20 to +85° (-4 to 185° F) storage. A temperature- and load-sensitive cooling fan is fitted

Humidity range: 10 to 85% (non condensing)

Case type: 4 RU rack mounting aluminum case


  • Width: 483 mm (19.0 in.) (445 mm (17.5 in.) behind rack location bracket)
  • Depth: 485 mm (19.1 in.)
  • Height: 180 mm (7.1 in.)

Weight: Approximately 13 kg (28.7 lbs.) without modules. Approximately 22 kg (48.5 lbs.) fully populated



Enclosure with Dual Redundant PSU and Ethernet/SNMP Compatible GV Orbit Gateway Card. 20 module slots.


Single PSU for use as a cold spare or replacement.

Dual Fan unit for use as a cold spare or replacement

Ethernet/SNMP compatible GV Orbit Gateway card for IQH4B and IQH3B enclosures

Notes: Although IQ modules are interchangeable between enclosures, each enclosure requires a suitable variant of panels

  • ‘B’ order codes may be used when installing approved modules in IQH4B enclosures
  • The IQH4B enclosure is primarily for use with IP modules. Please check with your authorized Grass Valley representative for an updated list of other approved IQ modular cards for the IQH4B enclosure



IQ Modular Enclosures: Flexible and Reliable Video and Audio Backbone Datasheet

IQH4B enclosures offer industry-leading, high-density delivery of modular solutions, primarily for use with IP modules



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