Hello everyone, I've been having issues getting my Moxa switches to function on the Fiber Turbo chain. Despite the Link lights not turning on, they work fine when connected using patch cables on the bench. The Fiber mode is single mode and the cable contractor has confirmed that all cables have passed the necessary tests. The SFPs were all purchased from Moxa, however, the fiber connections aren't working in the field. Any suggestions would be greatly appreciated. I plan on upgrading the firmware tomorrow in case that is the issue.
Although I don't have much experience with these, I've had to switch between the two fibers on occasion due to errors on the other end.
Are you aware of the fiber specifications and the distance between nodes? Have you confirmed that your SFP's are compatible with single mode fiber? Will they be effective with fiber patch cables during testing? It is important to specify whether your patch cables are copper or fiber. In some cases, single mode fiber has been utilized for short distances (<1000 meters), requiring attenuation to be added before functioning properly. If you worked with a fiber contractor, they should be able to provide assistance in resolving any issues encountered.
Apologies for the delayed response. The fiber optic cable used was single mode, requiring a polarity reversal which was successfully executed in the majority of the panels.
Hey there, just to clarify, are the SFPs you are using match the fiber mode (single mode in your case)? Mismatching can often lead to the exact problem you're describing. Also ensure that you’ve checked the duplex settings. Sometimes, if the switches are set to auto-negotiate and can’t find a partner to negotiate with, they might simply not turn the Link lights on. Meanwhile, the firmware upgrade could also resolve the issue if it's a software bug. Good luck!
Hi there, I've come across similar issues with Moxa switches and Fiber Turbo chains before. Given the circumstances you described, it seems you might want to check the power budget of your fiber optic system. When the field cable length increases, it may exceed the power budget causing the link to not establish properly, even if bench tests with patch cables are successful. If upgrading the firmware doesn't resolve your issue, I recommend enacting a thorough SFP compatibility test with your hardware and reexamining the entire fiber path for potential physical obstacles or interruptions. It's quite a process to troubleshoot, but stay persistent!
Hey there, it sounds like an interesting dilemma you're dealing with! Sometimes these issues can come down to the compatibility of the specific SFP with the switch, despite being from the same manufacturer. Another thing that might be worth checking, even though it might seem fairly basic, is the cleanliness of the fiber connections. Dust particles or other microscopic debris can cause significant signal loss. You could use some cleaning supplies to gently wipe them and see if this makes a difference. Let's hope your firmware upgrade also contributes to a solution. Keep us posted!
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Answer: The issue could be related to the Fiber mode being single mode, cable contractor's tests, or SFP compatibility. Troubleshooting steps may involve checking the Fiber mode settings, verifying cable integrity, and confirming SFP compatibility.
Answer: The lack of Link lights could indicate issues with the fiber connections, SFP modules, or switch configurations. It is recommended to check the fiber connections, inspect the SFP modules, and review the switch settings to identify the root cause.
Answer: Troubleshooting steps may include checking the Fiber mode settings, verifying cable integrity, confirming SFP compatibility, inspecting fiber connections, and upgrading firmware if needed. It is also advisable to consult with technical support for further assistance.
Answer: Upgrading the firmware can potentially resolve connectivity issues, so it is a good step to take. Ensure to follow proper procedures and backup configurations before proceeding with the firmware upgrade to avoid
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