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by Cisco
Product Line: Cisco D9050
Product Type: Switch
Original price $0.00 - Original price $466.00
Original price
$0.00 - $466.00
Current price $466.00
Title: Used

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Product Description

The D9050 Cisco encoder supports HD-SDI input with SMPTE 292M compliance and offers a variety of audio inputs including analog, digital AES/EBU, and embedded with a 25-pin sub-D female (TASCAM DA-88) connector. It processes video in 4:2:0 / 4:2:2 format with MP2 CBR / Statmux 720p, 1080i and audio configurations up to 4 stereo pairs in formats such as LII, AC-3, and AAC. Outputs are facilitated through an ASI connector, supporting both CBR and VBR at bit rates of 1.485 Gbit/s ±10 ppm or 1.485/1.001 Gbit/s ±10 ppm, ensuring compatibility with various broadcast standards.

Key Feature for the D9050

  • What video formats does the device support?
    The device supports 4:2:0 / 4:2:2 video formats with MP2 CBR / Statmux 720p and 1080i.
  • What is the impedance for the HD-SDI input specified as SMPTE 292M?
    The impedance for the HD-SDI input is 75Ω unbalanced.
  • Can the device encode audio in AC-3 format?
    Yes, the device can encode audio in AC-3 format, along with LII, Dolby-E, AAC, and AC-3.
  • What types of audio inputs are supported?
    Supported audio inputs include analog, digital AES/EBU, and embedded audio.
  • What output interface does the device provide?
    The device provides an ASI output interface.
  • What are the supported system frame rates?
    Supported system frame rates include 1080i@29.97 Hz, 1080i@25 Hz, 720p@59.94 Hz, and 720p@50 Hz.
  • How many audio channels can be processed?
    The device can process four stereo pairs or eight mono Layer II channels, or 4 Stereo Dolby Digital channels, or 4 DOLBY-E/Linear Audio channels.
  • What is the audio connector type used?
    The audio connector type used is a 25-pin sub-D female (TASCAM DA-88).
  • What bit rate does the HD-SDI input support?
    The HD-SDI input supports a bit rate of 1.485 Gbit/s ±10 ppm or 1.485/1.001 Gbit/s ±10 ppm.
  • What is the input level requirement for digital audio?
    The input level requirement for digital audio is 2 to 7 Vpp nominal, with a minimum of 500 mV.

Product Review

The Cisco D9050 offers versatile input options, including HD-SDI with embedded audio, four AES audio channels, and support for a wide range of video and audio formats, making it suitable for diverse broadcasting environments. However, its output is limited to ASI, which may restrict integration with newer, IP-based infrastructure. The hardware supports both CBR and VBR for 1080i and 720p resolutions, ensuring compatibility with standard broadcast formats, but the reliance on SMPTE standards for jitter acceptance and return loss could pose challenges in high-jitter environments.


The Cisco D9050 Encoder represents a sophisticated piece of hardware designed for broadcast applications, offering a comprehensive suite of features for video and audio processing. This device stands out for its capacity to handle both HD and standard-definition inputs with efficiency and precision. The D9050 Encoder supports a wide range of input and output formats, making it a versatile solution for various broadcasting needs. For video, the D9050 accepts HD-SDI input compliant with SMPTE 292M standards, ensuring high-quality video feed capture. The video compression options include both 4:2:0 and 4:2:2 chroma subsampling, accommodating MPEG-2 CBR and statistical multiplexing for resolutions such as 720p and 1080i. This flexibility in handling different video formats and compression techniques allows for efficient bandwidth usage while maintaining high video quality. The audio capabilities of the D9050 are equally impressive, with support for up to four stereo pairs or eight mono channels. It can process a variety of audio formats, including Layer II, AC-3, and AAC, among others. The encoder also supports specialized audio processing for Dolby-E and Linear PCM tracks, ensuring broad compatibility with different audio standards. Inputs for audio can be analog, digital AES/EBU, or embedded, providing ample connectivity options for audio sources. Key hardware specifications include: - Input Level: 800 mVpp nominal for video, with a return loss of ≥ 15 dB across 5 to 1.4 GHz, ensuring signal integrity. - Impedance: The device features 75Ω unbalanced for video and 110Ω balanced for digital audio inputs, accommodating standard broadcast cabling requirements. - Connector Types: Video input utilizes BNC connectors, while audio inputs and outputs employ a 25-pin sub-D female connector, following the TASCAM DA-88 standard for audio. In terms of output, the D9050 delivers content via ASI, supporting both constant bit rate (CBR) and variable bit rate (VBR) operations. This allows for flexible content delivery that can be adjusted according to network capacity and the required quality of service. The supported systems include 1080i at 29.97 Hz and 25 Hz, as well as 720p at 59.94 Hz and 50 Hz, covering the most commonly used formats in broadcast television. The audio section also features an analog audio impedance of 600Ω or > 20 KΩ balanced, with a common-mode rejection ratio (CMRR) greater than 50 dB at 1 kHz, ensuring high-quality audio signal processing. The clipping level for analog audio can be adjusted from -6 to +24 dBu in 0.5 dBu increments, providing precise control over audio levels. Digital audio return loss is greater than 15 dB from 0.1 to 6.0 MHz, with an input level range from 2 to 7 Vpp nominal, ensuring compatibility with a wide range of digital audio sources. The sample rate for digital audio includes 32, 44.1, and 48 kHz options, covering standard audio sampling rates for broadcast. In summary, the Cisco D9050 Encoder is engineered to meet the demands of modern broadcasting environments, offering advanced video and audio processing capabilities in a single, compact unit. Its support for a wide range of formats and standards, combined with precise control over encoding parameters, makes it a powerful tool for content creators and broadcasters aiming for high-quality output.


Item NumberCisco D9050
Audio IntegrationHD-SDI with Embedded Audio, Supports 4 AES Sources
Video CompatibilityMPEG-2 CBR/Variable Bit Rate Statmux, 720p, 1080i in 4:2:0 and 4:2:2 formats
Audio SupportMaximum of 4 stereo channels, MPEG-1 Layer II, AC-3, AAC, Dolby-E Compatible
Video OutputASI Format
HD-SDI Input StandardConforms to SMPTE 292M
Encoding RatesSupports both Constant and Variable Bit Rates: 1080i@29.97 Hz, 1080i@25 Hz, 720p@59.94 Hz, 720p@50 Hz
Electrical Impedance75Ω, Unbalanced Configuration
Signal Input LevelStandard 800 mV peak-to-peak
Signal Return LossMinimum 15 dB from 5 MHz to 1.4 GHz
Physical Connector TypeBNC Interface
Data Transmission Rate1.485 Gbps, adjustable ±10 ppm; alternative rate 1.485/1.001 Gbps ±10 ppm
Signal Jitter ToleranceCompliant with SMPTE RP184 Standards
Supported Aspect Ratios4:3 Standard and 16:9 Widescreen
Audio InputsAnalog, AES/EBU Digital, and SDI-Embedded
Audio Port25-pin D-Sub (TASCAM DA-88 Standard)
Audio Channel Capacity8 mono or 4 stereo pairs (Layer II), 4 Dolby Digital or 4 Dolby-E/Linear PCM Channels
Analog Audio ImpedanceSwitchable 600Ω or >20 KΩ, Balanced
Analog Audio CMRRGreater than 50 dB at 1 kHz
Analog Audio Dynamic RangeAdjustable from -6 to +24 dBu in 0.5 dBu steps
Digital Audio Impedance110Ω, Balanced
Digital Audio Return LossGreater than 15 dB, from 0.1 to 6.0 MHz
Digital Audio Input Level2 to 7 Vpp standard, with a minimum of 500 mV
Digital Audio Sampling Rates32 kHz, 44.1 kHz, and 48 kHz
Embedded Audio StandardConforms to SMPTE 299M
Embedded Audio Sampling RateFixed at 48 kHz, synchronized to video

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