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Description
Blackmagic Ethernet Switch 820Designed for advanced broadcast systems, this high capacity network device delivers exceptional performance with very low latency while keeping installations clean and secure. All network connections are positioned on the rear panel, matching the layout of professional broadcast equipment and allowing tidy cable looms that stay hidden and protected during operation. This approach is especially valuable in outside broadcast vehicles, flyaway kits and
Designed for advanced broadcast systems, this high capacity network device delivers exceptional performance with very low latency while keeping installations clean and secure. All network connections are positioned on the rear panel, matching the layout of professional broadcast equipment and allowing tidy cable looms that stay hidden and protected during operation. This approach is especially valuable in outside broadcast vehicles, flyaway kits and compact control rooms where space and reliability matter most.
The architecture is built around eight ultra fast 100G Ethernet connections using QSFP28, complemented by two 10G Ethernet ports for flexible integration with auxiliary systems. This makes it ideal for building modern IP based video infrastructures that connect high bandwidth devices such as network recorders, production switchers and shared storage. Simple front panel routing allows straightforward configuration of SMPTE 2110 signal paths without the need for complex IT workflows.
Quiet operation is a key design focus. Professional front to back cooling with multiple redundant fans ensures stable thermal performance while keeping noise levels low enough for use near operators and sensitive audio equipment. Dual internal power supplies further enhance reliability, providing redundancy for mission critical broadcast environments.
For precise timing and control, the unit includes two dedicated Ethernet connections for PTP clock reference, ensuring accurate synchronization across IP video systems. A separate NMOS control port and an independent management network port allow clean separation between media traffic, control data and configuration access. This design supports modern broadcast standards and simplifies system management.
An integrated 2.2 inch color LCD on the front panel provides clear monitoring of video, audio, standards and timecode. Operators can easily scrub through inputs using the rotary control and view live data transfer graphs for each port, making on site diagnostics fast and intuitive.
Verwachtte levertijd: Juni 2026
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4.4 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 5
A Wonderful Update To A Great Old Reference Book!
Format: Hardcover
It's the Merck Manual! If you know medicine but are aware you don't know EVERYTHING about EVERYTHING! (Few if any do!) This is a wonderful reference. If you have no medical knowledge and think this will make you know what doctors know. Don't waste your money. You have to have a basic understanding for this to be helpful. This is a wonderful update to an old favorite.
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Reviewed in the United States on July 16, 2025
★★★★★ 5
The most current and inclusive medical reference available mid-2018.
Format: Hardcover, Format: Hardcover
Here’s the review I wrote for the 19th edition on 2011: I've been getting and using the Merck Manual for over 30 years to answer questions about disease for family and friends (pediatrics through geriatrics) as well as preparing to ask germane questions of physicians responsible for care of family and friends. It is comprehensive in its coverage of the etiology, diagnosis, treatment and prognosis of diseases of the human body and contains the latest research results on the treatment options. It's really not that difficult for the layman to understand the medical terminology and the result is factual understanding of the major aspects of disease which you will NOT get from the standard home health care books from Johns Hopkins, Harvard, Mayo Clinic, the AMA or even the Merck Home Health handbook. And, unlike the Merck Manual, these books directed to the laity do not contain the diagnostic information upon which physicians decide precisely what disease they are presented with. Yes, there will be much superfluous information which you may never use, but, when you want and need the information about a specific disease, here's where you should start your education.
The same holds true for the updated 2018 20th edition. I neglected to mention that this manual also contains a plethora of ancillary information including thorough sections on pediatrics, geriatrics, injuries, bites and stings, patient care, alternative medicine, dietary supplements, rehabilitation, normal test values and even legal issues such as advance directives. Yup, it’s pricey, but it’s always proved to be valuable to me.
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Reviewed in the United States on June 15, 2018
★★★★★ 5
Great reference book
Format: Hardcover
If you only have one medical resource book in your house, I recommend this one. Very thorough book.
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Reviewed in the United States on March 3, 2026
★★★★★ 5
Good to Have
Format: Hardcover
This is a comprehensive manual. I bought it because of the difference of opinions of different doctors and vets that we received when our cat was sick. We spent over $6,000+ and found out he only had 1 of the 7 symptoms of his diagnosis and the hospital could not find the reason for his weight loss. Many years ago a human Merck Manual helped us discover that the specialist was using one. After coming out of the hospital and during a followup visit, I asked what is the next step to take. I advised him we bought a Merck Manual and can read it just as well as him and was not happy. He sent us to an Electrophysiologist, a speciality we never knew existed.
Kitty gained weight again, just needed to peak his appetite with Instinct Rabbit and Duck dry cat food. Apparently, his smell was off and Instinct coats their kibble with the flavor you are buying. It wasn’t easy finding the right one because he is food specific and it must be kibble. We donated all the ones recommended and others we thought he would the rescues. When we first adopted him as a kitten, he was sneezing mucous tinted with blood and vet said he would grow out of it. He did but ….
Highly recommend double checking and / or getting a 2nd opinion, human or otherwise.
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Reviewed in the United States on January 26, 2024
★★★★★ 5
Compact detailed reference work
Format: Hardcover
This is the next in a series of, th most recent version. Contains a volume of medical information of many medical topics.a great reference product.
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Reviewed in the United States on November 21, 2025