Hi,
Is there a "RJ-45 module for up to 10 Gbps" that can connect any of these routers: ( CCR2004-1G-12S+2XS or CCR2004-16G-2S+PC or RB4011iGS+RM) with any of these these switches: ( CRS418-8P-8G-2S+RM or CRS326-24G-2S+IN or CRS326-24G-2S+RM or CRS328-4C-20S-4S+RM) using Eth cat 7 cable on SFP+ ports?
thank you
It’s not optimal. These modules run very hot (up to 80 deg C). Better connect it using normal SFP+ fiber modules (multi or singlemode)
Or when it is short distance, an option can be to use a DAC cable.
https://mikrotik.com/products/group/sfp-qsfp
(that page also mentions the S+RJ10 which is what you are asking for, but indeed it is to be avoided)
Thank you for sharing that experience.
What would be the best solution for connecting SFP+ ports on router to switch but for distance between 1st and 7th floor ?
Cat7 is not really a standardized format, I believe ? It requires a dedicated connector if I am not mistaking ?
In that case (if a new cable needs to be placed): fiber.
Or use ethernet CAT6A (if the segment does not go beyond 100m).
If using S+RJ10, be aware there is no manual way to reduce speed to get temperature lower. It always negotiates at the highest possible speed with the other side and there is no way to change that. The only thing you can do is to have it on one end and use on the other end something which uses lower speed. In that case S+RJ10 will comply and adjust to the lower setting.
(tested already with RB5009/AX3 using 2.5Gb ether port and S+RJ10 inserted in CSS610/CSS318)
It is very difficult to find right SFP+ transceiver for random selection of routers and switches. For example : Is there a transceiver for CCR2004-1G-12S+2XS and CRS418-8P-8G-2S+RM ?
Is it possible to use FO cable or Cat7 have already been installed?
FO is much more flexible and lets make smaller holes if passed through walls without connector initially. LC connectors are comparable to Cat7 cable thickness, so if you have holes already drilled, you can try to pass FO with connectors.
Thanks for the info everyone, this clears things up.
From what I understand now, RJ45 (copper) transceivers are quite limited and very sensitive to cable quality, length, and chipset compatibility. Even if they link up, stability and speed issues are common, especially beyond short distances.
It looks like for anything over short runs, DAC or fiber SFPs are still the safer and more reliable option. RJ45 SFPs might work in specific cases, but they’re not a drop-in replacement for fiber.
I’ll probably switch to DAC/fiber to avoid ongoing issues.
Thanks again for sharing real-world experience.
RJ45 transceiver (10G) more prone to overheating, especially using it side by side with another RJ45 transceiver (10G)…
Not really,
Copper connections are trusted ones but there are length limits for copper cable segments dependand on speed you want to use. Usually, for home usage, these limits are not reached if it comes to 1Gb speed but if you want to use 10Gb then you need to use Cat6 or Cat7 cables but they are thick, hard to bend and therefore not easy to install. FO is much easier to install as it is very flexible, thin and let you use almost any length, less then dozens of kilometers :), for 10Gb communication. 10Gb FO modules also do generate less heat and that is also a bonus.
As usual the problem is the connection "last mileinch" where you have already eg. RJ45 2.5Gb connector installed in PC. Then you have to solve the puzzle what kind and where should connectors and converters should be installed.
Fiber! Get two SFP+ fiber transceivers for multi-mode fiber and a length of fiber, you can also get that with connectors when you don’t have to pull it through small holes.
DAC is very limitted? Only 1m?
DAC are rather short "cross rack" cables. Look for AOC cables instead.
Yes DAC is only for inside a rack or between adjacent racks.
For your case you best use fiber.
So, is there any solution for connecting routers and switched between building floors using SFP+ ports?
Yes,
Fiber cable + FO modules instead of copper if you can avoid it.
Why do you keep asking the same question when it has already been answered ?
Option 1: fiber
Option 2: fiber
Option 3: fiber
Option 4: ethernet if all other options are not possible.
Fiber cables would be great!
FO modules from this link: MikroTik · SFP/QSFP ?
But, have I maybe misunderstood that not all FO modules are suitable for all routers/switches?
I read the specification documents for certain FO modules and certain FO modules are good for only certain routers or switches. Can I use any FO modul for any router or switch?
Look here for MikroTik info: MikroTik wired interface compatibility - RouterOS - MikroTik Documentation
and indeed on that product page