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About octaviars

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  1. CAT6A STP, CAT7, CAT7A and CAT8 all have the shield tied at both ends so I think it will be hard to find one with plastic plugs. I bought a bulk CAT7A cable and some of the new Telegärtners MFP 8.1 connectors and built my own cable. The shield is only tied in the end that is in my dCS Network bridge the other is floating at the eR B-side. As the dCS is grounded to mains earth via it's power plug the shield will drain that way. Both cable and connectors are really easy to work with and the cost is around €1 per meter cable and around €20 per connector here in Europe. The heatshrink presents the sheild from geting in touch with the housing.
  2. When installing attenuators in a fiber system you normally just install one at the reciever input (Rx) so two attenuators in total on each cable. If you have long cables you normaly measure the loss in the cable to see if the signal that travels through the cable is to strong when it hits the reciever and then apply attenuators so the signal is ok for the reciever.
  3. Your biggest risk comes when using Single Mode ER (40 Km) and ZX (80 Km) optics, which can overdrive and even burn inputs without sufficient attenuation. There is no risk of burning Multi Mode optics like the ones you use with short cables.
  4. What type of SFP modules do you use? I use LX modules that have a range up to 10km with single-mode fiber and I asked FS.com if there were any risk of using them with a short fibercable but that was no problem with the model I bought.
  5. If you power your etherREGEN and something on the B-side after the etherREGEN with a JS-2 you will defeat the isolation in the etherREGEN. This is because the JS-2 shares the -0V ground on both outputs. If I am wrong I think @Superdad can correct it.
  6. Nice to see another TAD owner here, is it a D1000mk2 you use? I use a dCS Network Bridge with AES to my TAD, the eR is feed with a 1.2m long CAT7A LAN cable from the B-side. On the A-side i have my Roon server and fiber to my router.
  7. I did some changes in the vents of my cabinet so the fan can circulate the air better and now my eR runs around 37-38C as a reference my NUC i5BNH with Roon ROCK in a Akasa case runs at 34-35C so I am happy with my changes Regarding LAN cables I use the old version of Ghent cables betwen ISP fiber, router and between eR and NUC (I run fiber between router and eR). From eR to my dCS Network Bridge I use a CAT7A cable with Telegärtners new MFP 8.1 connectors, sheild only connected at the DCS side.
  8. Thanks @JohnSwenson for the answers. I use two heatsinks on my eR as it is mounted in a cabinet that is around 30C. Before I added the heatsinks the eR was around 48-49C on the case (I use a calibrated IR thermometer) and with the heatsink the case is around 40C so I think this soulution works ok.. I use one of the mountingscrews for the sidepanel as a referencepoint so the before and after measurements is from the exact same point.
  9. Yes that is ok. To power the eR and other stuff on the A-side will not defeat the isolation. It is when you power stuff on both the A-side and B-side with the same powersupply that there might be broblems if they share -0V for example on their outputs.
  10. This is the tape WL FOLIE 404 12 it is one larger piece 200x100mm and I cut two smaller pieces that fit the heatsinks. https://www.reichelt.com/se/en/double-sided-adhesive-thermal-conductive-foil-100x200-mm-wl-folie-404-12-p112270.html?&trstct=pos_0
  11. I dont think anyone wrote that this is necessary. I can only talk for my own system and with the eR in my cabinet the temp went up and runing the eR around 49C 24/7 over many years I feel more comfortable runing it around 40C. There is 120mm fan under the PSU that moves air in to the cabinet and out through a vent in the door.
  12. If you refer to the ones I use they dont weigh much it is just a small piece of aluminium. As I have it wallmounted tape was the best solution to secure the heatsinks to both front and back. Some sort of thermal compound would transfer heat better but I went from 48C to 41C in a cabinet that is around 30C so I am happy with that.
  13. To be honest I dont know I have not used this kind of tape before. I bought the heatsinks and tape from a company in Germany named Reichelt. Heatsink KS63-100E Tape WL FOLIE 404 12
  14. It aint the best looking solution but keeps the eR below 40C in a cabinet that is around 30C. Each heatsink is mounted with heat transfer tape. I have the eR mounted on the wall and the cabinet is fan cooled.
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