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by Cisco
Product Line: Cisco MCU (Multipoint Control Unit)
Product Type: Video Conferencing MCU
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Original price $0.00 - Original price $500.00
Original price
$0.00 - $500.00
Current price $0.00
Title: Surplus

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Product Description

The CTI-4501-MCU-K9 Cisco supports up to 6 participants at 720p30, 3 at 1080p30, or 12 at 448p30 for continuous presence video conferencing, with additional capacity for 12 voice participants. It features a variety of video standards including H.261, H.263, H.263+, H.263++, and H.264, and offers both unicast (up to 6 streams) and unlimited multicast video streaming, with a bandwidth of up to 4 Mbps per site. The device includes a 10/100/1000 Mbps RJ-45 Ethernet interface, supports wideband audio mixing, and comes with a comprehensive mounting kit, making it versatile for various installation environments.

Key Feature for the CTI-4501-MCU-K9

  • What are the supported video standards for this device?
    The device supports H.261, H.263, H.263+, H.263++, and H.264 video standards.
  • How many participants can join a video conference at 720p30 using symmetric continuous presence?
    Up to 6 participants can join at 720p30 in symmetric continuous presence mode.
  • Is multicast video streaming supported, and if so, to what extent?
    Yes, multicast video streaming is supported and is unlimited.
  • What is the maximum bandwidth per site that the device can handle?
    The device can handle up to 4 Mbps bandwidth per site.
  • Can this device accommodate additional voice participants, and how many?
    Yes, the device can accommodate up to 12 additional voice participants.
  • What are the dimensions and weight of the device?
    The device measures 3.43 x 17.4 x 19.25 inches (H x W x D) and weighs 24 lbs.
  • What power requirements does the device have?
    The device requires an AC input power of 100 to 240 VAC, with a frequency of 50/60 Hz, and consumes 787 W.
  • What are the operating temperature and humidity specifications?
    The minimum operating temperature is 0 °C, the maximum is 35 °C, and the relative humidity should be below 95% (noncondensing).
  • Does the device come with a mounting kit, and how many status LEDs does it have?
    Yes, a mounting kit is included, and the device has 39 status LEDs.
  • What audio features are supported by the device?
    The device supports wideband audio mixing, inbuilt and uploadable auto attendant voice prompts, and automatic gain control.

Product Review

The Cisco CTI-4501-MCU-K9 offers a flexible video conferencing solution with support for up to 6 participants at 720p30, 3 at 1080p30 for continuous presence video, and additional capacity for 12 voice participants, catering well to small to medium-sized meetings. However, it lacks the ability to support participants at 1080p30 HD+ in asymmetric mode, limiting high-definition experience for larger setups. Its comprehensive connectivity options, including 10/100/1000 Mbps Ethernet and compact flash support, alongside a broad range of video standards and high frame rates, make it a versatile choice for various networking environments.


The Cisco CTI-4501-MCU-K9 is a telecommunications hardware that facilitates video conferencing by connecting multiple participants across different locations. It supports a range of video standards including H.261, H.263, H.263+, H.263++, and H.264, ensuring compatibility with various video formats. The device can handle up to 60 frames per second, providing a smooth video experience. In terms of participant capacity, the CTI-4501-MCU-K9 can host six participants in continuous presence video at 720p30 resolution, three participants at 1080p30, or twelve participants at 448p30. However, it does not support participants with 1080p30 HD+ capacity in asymmetric mode. Additionally, it allows for twelve additional voice participants, enhancing the audio-visual communication experience. For video streaming, it supports six unicast streams and unlimited multicast streams, with a bandwidth of up to 4 Mbps per site. The device boasts a variety of interfaces to ensure connectivity and interoperability, including 10/100/1000 Mbps full/half duplex RJ-45 Ethernet for network connections, an RJ-45 serial port for management, and a CompactFlash socket for additional storage solutions. Its physical dimensions are 3.43 x 17.4 x 19.25 inches, making it suitable for standard 19-inch rack mounting, and it weighs 24 lbs. The package includes a mounting kit for easy installation. The CTI-4501-MCU-K9 is designed to operate efficiently with an AC input power of 100 to 240 VAC at a frequency of 50/60 Hz. It has a power consumption of 787 W and a maximum heat dissipation of 2684 BTU/hour. The operating temperature ranges from 0 °C to 35 °C with a relative humidity below 95% (noncondensing), ensuring reliable performance in various environments. Additionally, the device is RoHS compliant, adhering to restrictions on the use of certain hazardous substances in electrical and electronic equipment. Audio features of the CTI-4501-MCU-K9 include wideband audio mixing for clear voice transmission, inbuilt and uploadable auto attendant voice prompts for easy navigation, and automatic gain control to maintain consistent audio levels. The device supports both 4:3 and 16:9 aspect ratios, accommodating different video formats. Key specifications include: -
  • Maximum of 12 448p30 video participants or 6 720p30/3 1080p30 continuous presence video participants
  • Interfaces: 10/100/1000 Mbps RJ-45 Ethernet, RJ-45 serial port, CompactFlash socket
  • Audio Features: Wideband audio mixing, auto attendant voice prompts, automatic gain control
Moreover, the CTI-4501-MCU-K9 is equipped with 39 status LEDs, providing real-time status updates and diagnostics at a glance. This, combined with its robust set of features, makes it a comprehensive solution for organizations looking to facilitate effective video conferencing among teams or with external partners.


Part Number CTI-4501-MCU-K9
Manufacturer Cisco
Continuous Presence Video Participant Capacity (Symmetric) 6 at 720p30, 3 at 1080p30, 12 at 448p30
Participants with Enhanced HD (1080p30) Capability (Asymmetric) 0
Additional Voice Participant Count 12
One-to-One Video Streaming Count 6
Group Video Streaming Capacity Unlimited
Maximum Bandwidth per Connection 4 Mbps
Supported Video Protocols H.261, H.263, H.263+, H.263++, H.264
Maximum Frame Rate 60 fps
Connectivity Ports 10/100/1000 Mbps Ethernet (Full/Half Duplex), RJ45 Serial, CompactFlash
Dimensions (H x W x D) 3.43 x 17.4 x 19.25 inches
Standard Rack Mount Size 19 inches
Unit Weight 24 pounds
Power Requirement 100 to 240 VAC
Operational Frequency 50/60 Hz
Energy Consumption 787 W
Heat Output 2684 BTU/Hour
Operational Temperature Range 0 to 35 °C
Maximum Humidity 95% (Non-condensing)
Compliance with RoHS Yes
Installation Hardware Provided
Indicator Lights Included
Indicator Light Count 39
Audio Capabilities High-definition Audio Mix, Built-in and Customizable Voice Prompts, Dynamic Volume Adjustment
Supported Video Aspect Ratios 4:3, 16:9

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