Skip to main content
Login Contact Us


High Density SDI/IP Gateway for Densité 3 Platform

The Densité IP Gateway (IPG-3901) plug-and-play modules is a 3 RU module for the Densité 3 frame, which offers bidirectional IP/SDI conversion. The Gateway operates with 10 GigE audio/video video-over-IP, supporting 4K UHD/3G/HD/SD-SDI formats. The IPG-3901 v2.3 gateway module furthers the end-to-end support of IP for Grass Valley product lines by now offering support for Video Services Forum Technical Recommendation 04 (VSF TR-04), enabling independent routing of AES audio alongside SMPTE ST 2022-6 video and interconnection to audio devices supporting AES67 open standard for audio over IP.

With the addition of intoPIX TICO mezzanine encoding and decoding option on the gateway, customers...


  • Bidirectional transport of 4K UHD/3G/HD/SD-SDI video signal over 10 GigE port
  • TR-04 support where each video signal is converted using SMPTE ST 2022-6 along with AES67 de-embedding/embedding of up to 16 audio channels per I/O
  • Redundancy mode with full compliance of SMPTE ST 2022-7 Class A of all IP essences where each module connects up to 3x3 3G or 5x5 HD/SD signals
  • Aggregation mode where both network ports are combined for a total IP bandwidth of 20 GigE:
    • Provides higher 3G transmission capability per IPG-3901 card such as the transfer of 4K UHD uncompressed over Quad Link 3G using a single IPG-3901 card
    • In this mode, bidirectional I/O for 2 inputs, 2 outputs and 7 bidirectional I/Os for up to 11 streams
  • Large frame buffer on every IP receiver provides support for server originated bursty sources
  • All SDI outputs are aligned with respect to the module reference for precise timing adjustment ensuring signal stability
  • Supports multicast loopback with SDI output alignment
  • Support of PTP on the media port with fail-over redundancy for AES67 streams. Supports both AES67 and SMPTE ST 2059 profiles
  • Support of DiffServ for network traffic provides categorization of flows into QoS classes
  • Flexible SD/URS reference input
  • Compatible with Densité 3 and 3+ platforms
  • Integrates with iControl and GV Convergent SDN control frameworks
  • IGMPv3 support for IP inputs
  • Supports unicast and multicast signals
  • Features dual-network interfaces supporting 10 GigE SFP+ with either:
    • Short range multi-mode optical connectors
    • Long range single-mode optical connectors
    • Direct attach copper assemblies
    • Active optical cables and optical transceiver
  • TICO 4K 1-wire option:
    • IPG-3901-OPT-TICO — this is a purchasable option that gives dual TICO codec option for 4K 1-wire support
    • Quad Link 3G in 2SI and square division supported as per SMPTE ST 425-5
    • Simultaneous HD and 4K
    • TICO is intoPIX Profile 1 with visually lossless 4:1 low-latency compression
    • Flexible configuration of 2 encoder or 2 decoder or 1 encoder and 1 decoder
    • 3G monitoring of 4K UHD signals


SDI (Inputs/Outputs)

Physical: 11 BNC connectors:  2 IN, 2 OUT, 7 configurable independently as input or output

SDI Standard:

  • SMPTE ST 259-C (270 Mb/s)
  • SMPTE ST 292 (1.485, 1.485/1.001 Gb/s)
  • SMPTE ST 424 (2.970, 2.970/1.001 Gb/s)

Supported Formats:

  • SD: 480i59.94, 576i50
  • HD: SMPTE ST 274: 1080i59.94, 1080i50
  • HD: SMPTE ST 296: 720p59.94, 720p50
  • 3G: SMPTE ST 425 level A (mapping 1): 1080p59.94, 1080p50
  • 4K UHD: Quad Link 3 Gb/s SMPTE ST 425-5: 1080p59.94, 1080p50

Transport Formats:

  • VSF TR-04 = SMPTE ST 2022-6 + AES67
  • AES67 = SMPTE ST 2110-30

Cable length (Belden 1694A):

  • SD: 300m (984 ft.) at 270 Mb/s
  • HD: 150m (492 ft.) at 1.485 Gb/s
  • 3G: 100m (393 ft.) at 2.970 Gb/s

Return loss:

  • >15 dB up to 1.5 GHz
  • >10 dB up to 3 GHz


  • HD/SD: <0.2 UI (alignment jitter)
  • 3G: <0.3 UI (alignment jitter)


Reference Input

Signal: SMPTE ST 170/SMPTE ST 318/ITU 624-4 blackburst

Return loss: >30 dB up to 5.75 MHz

Ethernet Port

Physical: Two SFP+ sockets for copper, short reach and long reach fiber

Standard: IEEE 802.3-2008 10 GigE

Transport: SMPTE ST 2022-6 & AES67 IP Unicast or Multicast with IGMPv3 and SMPTE ST 2022-7 Class A

Performance: Up to 9.5 Gb of streaming per direction

4K UHD Video Compression

Codec: intoPIX TICO profile 1

Quality: 4:1 visually lossless

Additional latency:

  • Encoder: 4.5 lines
  • Decoder: 2.5 lines

2SI/Square Division conversion: 1 frame


Power: 37.5W maximum


Densité 3 Frame Densité 3+ Frame Description
IPG-3901   High density SDI/IP gateway
IPG-3901-3TRP   Triple rear connector panel
   IPG-3901-3+DRP Double rear connector panel for Densité 3+
IPG-3901-OPT-TICO   4K over 1-wire TICO encoder/decoder option
SFP+ Options    
SFP-ETH10G-RT-S13-LC   Optical 10 GigE cartridge, single-mode 1310 nm, LC/PC connector, 10 km (6.2 mi.)
SFP-ETH10G-RT-M85-LC   Optical 10 GigE cartridge, multimode 850 nm, LC/PC connector, 300m (984 ft.)

Note: One or two SFP+ options must be ordered for each IPG-3901.

Other types of SFP+ Optical options are available for this product. Please contact your local Grass Valley sales representative for more information.

Remote control: iControl or iControl Solo (version 7.10 or higher required), GV Convergent




The Densité IP Gateway (IPG-3901) plug-and-play modules from Grass Valley is a 3 RU module for the Densité 3 frame, which offers bidirectional IP/SDI conversion. The Gateway operates with 10 GigE audio/video video-over-IP, supporting 4K UHD/3G/HD/SD-SDI formats.



Login Required

If you have a valid Service & Support Agreement please visit the link below to access the support portal to locate your product download.

Go to Product Downloads


Further documents

Already know what you're looking for? Click the link below to access our full documentation library

Visit Library
Go back to top