SKU: 99019282807

Hollyland Spares - Datavideo 2850 Tally Cable (for SYSCOM 1000T / MARS T1000)

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Description

Hollyland Spares - Datavideo 2850 Tally Cable (for SYSCOM 1000T / MARS T1000)The Hollyland Datavideo 2850 Tally Cable (Model: HL TC01) is an official OEM adapter cord built explicitly to interface legacy, full duplex wireless intercom stationsspecifically the Hollyland SYSCOM 1000T and the MARS T1000with Datavideos specialized multi camera mobile studio frameworks. While the HL TC02 targets Blackmagic setups, the HL TC01 is custom pinned to process the unique signal layouts coming out of Datavideo's heavy duty mobile video

The Hollyland Datavideo 2850 Tally Cable (Model: HL-TC01) is an official OEM adapter cord built explicitly to interface legacy, full-duplex wireless intercom stations—specifically the Hollyland SYSCOM 1000T and the MARS T1000—with Datavideo’s specialized multi-camera mobile studio frameworks.

While the HL-TC02 targets Blackmagic setups, the HL-TC01 is custom-pinned to process the unique signal layouts coming out of Datavideo's heavy-duty mobile video switchers, routing automated camera live/standby states smoothly over your wireless communication headsets.

System Ecosystem Interoperability

This specialized interface cable forms a direct bridge between your wireless comms director node and Datavideo's analog data transport channels:

  • Hollyland Master Terminals: MARS T1000 Master Control Unit & SYSCOM 1000T Base Station Box.

  • Datavideo Switcher Integration: Links natively to the multi-channel tally output system on the Datavideo SE-2800 and Datavideo SE-2850 HD/SD digital video switchers (as well as integrated mobile video studios like the MS-2850 fly-pack layout).

Core Structural & Performance Features

  • Custom-Mapped Logic Conversion: Built with an internal wiring map that aligns the parallel trigger outputs of Datavideo vision mixers with the input tracking architecture of the Hollyland base station. When a camera angle goes live on the video board, the corresponding tally signal instantly beams down to the field beltpacks to change the status indicator frames without delayed lag.

  • Dual Hand-Tightening Thumbscrews: Heavy-duty, molded PVC connector housings on both terminal blocks come equipped with captive metal thumbscrews. This layout locks the connection tightly into your equipment deck, completely eliminating signal flickering or stutter caused by the physical vibrations of mobile video vans or high-traffic fly-pack kits.

  • Broadcast Shielding Matrix: The multi-conductor internal core is insulated within an anti-interference foil shielding jacket. This protective layer ensures that low-voltage analog continuity checks remain completely isolated from adjacent electromagnetic interference (EMI) thrown off by heavy video routers, production recorders, or power trunks.

Technical Specifications Matrix

Component Attribute Technical Specifications Detail
Official Model SKU HL-TC01 (UPC Code: 191460002038)
Primary System Use Hollyland Mars T1000 / Syscom 1000T Intercom Base Nodes
Target Switcher System Datavideo SE-2800 / SE-2850 Series Parallel Output Ports
Physical Cable Length 4.92 feet (1.5 Meters)
Data Signaling Architecture Pure Analog Voltage Ground Logic / Low-Voltage Tally Sync
Color Configuration Profile Professional Matte Black

On-Set Hardware Troubleshooting Advisory: If your system is fully connected but your beltpack tally lamps fail to switch colors, navigate to your Datavideo switcher's internal setup utility menu. Verify that the auxiliary tally port output mode is configured for Low Level (Ground Trigger) Relay Logic, which matches the default sensing structure of the Hollyland intercom system.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 99019282807

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Nick
Phoenix, US
★★★★★ 5
Amazing - Stop Scrolling and Buy This Pillow
Size: Queen (Pack of 1), Color: White
I have been an Amazon customer ever since the very beginning, and this is my first review. Not because I haven’t purchased tons of amazing things (and a few bad ones), just never felt the need. However, I researched pillows for longer than I care to admit, and decided on this one. I’ve had it for about six months and absolutely love it. No lie, I genuinely look forward lying my big head on it after a long day. I am a side sleeper, but flip flop all around through the night and it’s great in every position. Pros: Stays nice and cool, which is soothing regardless of the time of year. Has a sort of quilted textured pattern on the zip up cover, gives it a luxury feel, that breaths nicely even when a pillow case is added. The fill is fully adjustable to your preference. I knew it came with extra filling but was worried it would not be enough. Wrong. It was very full and I ended up taking some out until it was perfect. It comes vacuum sealed and suggests it may take some time to fully take shape. However, I found it to be about 90% almost instantly and was sleeping on it a couple hours later. There was no unpleasant scent sometimes associated with memory foam items. The foam itself is very nice, a mix of what appears to be shredded and cotton candy cloud like. Very brilliant idea, as it is somehow supportive, soft and firm all at once. The affordability of this pillow compared to some of the others in this category can’t be overstated. Oh, and the packaging was very thoughtfully and securely done. If you are like me, an over thinker, I would suggest just taking this for a spin. It’s amazing. I’m not a bot, or working for the company. I’m just truly satisfied, love this pillow, and have been sleeping great.
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Reviewed in the United States on April 6, 2026
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Verified Purchase
k25
Belleville, US
★★★★★ 5
It's the perfect pillow!
Size: Queen (Pack of 1), Color: White
I purchased this pillow specifically for its customizable fill feature, which allows you to add or remove stuffing to suit your personal comfort needs. Due to the unique curvature of my cervical spine—forward at the neck rather than backward—I require a soft, semi-flat pillow rather than one that is thick or firm. Additionally, I often experience ear discomfort by morning, so a gentler surface is essential. Upon adjusting the fill, I was pleasantly surprised by the generous amount of stuffing included. There was enough to fill an additional pillowcase, and I estimate it could easily create four to five more pillows. The ability to modify the pillow’s firmness at any time is an outstanding feature that makes it adaptable for a wide range of preferences and sleep styles. This pillow has exceeded my expectations in both comfort and versatility. I highly recommend it to anyone seeking a personalized sleep experience.
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Reviewed in the United States on February 1, 2026
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NC Coach
Chelsea, US
★★★★★ 4
Good quality pillows overall
Size: King (Pack of 2), Color: White
Got a set of these for my wife and myself as we were struggling with our old pillows. These have some really good qualities and some things we'd like to see changed. First, the good: These are look and feel like they are high quality and made with good materials. The foam itself has a very nice feel to it. We love the fact they are adjustable to add or remove foam. They come with a pretty substantial amount already in the pillow. We appreciate the CertiPur certification. Now the improvements or changes we'd like to see: The foam, while feeling great, doesn't bounce back well if you scrunch your pillows, and so every day you have to fluff and reshape the pillow, moreso than some other memory foam pillows we've owned. One side of the pillow is cooled and you can feel that even through the pillow case, and that's a great thing. However, one side is not cooled and we'd have preferred if both sides were made of the cooling material. Overall, these are good pillows and we are not disappointed with the purchase. They are not, however, our perfect pillows (which do seem hard to find), and at some point in the future will probably make their way to the guest bedroom. We would rate them as some of the better pillows we've tried and feel most people would probably like them.
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Reviewed in the United States on December 19, 2025
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Verified Purchase
Amazon Customer
Pawtucket, US
★★★★★ 5
Perfect Pillow
Size: Queen (Pack of 1), Color: White
These are the best pillows ever. You can adjust the firmness or softness to whatever you want. For years i used a soft latex pillow , which you cant get anymore. I will never use another pillow. I have purchased 6 of these after the first one. You pick your own comfort level. Best ever. No more neck aches.
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Reviewed in the United States on May 17, 2026
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Verified Purchase
Mark
New York, US
★★★★★ 5
Hallelujah… finally, I found the right pillow!!!
Size: Queen (Pack of 1), Color: White
I have spent a lot of money searching for the right pillow. I recently tried to Tempur-pedic that cost twice with this pillow cost. Tempur-pedic flattened out. I’ve had this pill for a few weeks now and it works wonders. I am a paraplegic. You can have a lot of neck problems. I love the fact that this pillow is adjustable. I immediately saw it was too stuffy and took a bunch out. It works perfect so glad I didn’t spend money on a $200 purple pillow. I read a lot of reviews and there were a lot of complaints about the odor. Mine did smell funny when it came out of the box. I immediately threw it in the dryer with a few bounce fabric sheets came out smelling fine. Pillows are a very individual thing, but I think for 40 bucks this pillow is worth a try. I’m really enjoying mine about one of those silk pillowcases to go over it and it sleeps cool and comfortable. Best wishes in your search for the right pillow. Update: I’ve been using this pillow several months and it continues. Give me a good night rest pain-free.. well worth the money. UPDATE: I have been using this pillow for three months and it still works great. It does not flat out or get hot..
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Reviewed in the United States on January 29, 2026

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