Inquiries regarding fiber and connectors
Inquiries regarding fiber and connectors
They provided me with fiber internet from my ISP. Initially everything worked until I tried using the LAN ports on the modem router switch access point. It failed. After some research, I discovered the router is faulty—only Wi-Fi functions properly (DHCP only via Wi-Fi). I’m frustrated by the repeated issues others have shared.
I was considering purchasing a Mikrotik Router: https://mikrotik.com/product/rb4011igs_5hacq2hnd_in. My questions are:
1. Can the SFP+ port accept fiber from my ISP?
2. If I have a fiber connection with an SC connector, can I convert it to an SFP+ port? What equipment would be needed?
3. If converting isn’t possible, what fiber modems are recommended that support SC inputs?
Thank you ahead of time.
ISPs generally deliver fiber into an ONT, which then provides Ethernet connectivity. Simply connecting their fiber to an SFP+ port won’t work unless conditions are perfect. The setup really depends on the ISP’s method—direct connections are possible but rare. There isn’t a strict SC versus SFP+ distinction; they use various fiber types. SFP+ modules often come with different connectors, usually LC being common. What’s important is ensuring the fiber matches the ISP’s specifications (like MM for multimode or SM for single mode, plus standards such as OM2 or OM3).
You’re usually required to use equipment from the ISP. A third-party ONT isn’t likely supported. If you want more details, sharing your modem and router model would help. It’s strange that the fiber goes straight into it, unlike Verizon Fios which uses an ONT for distribution.
RB4011 offers solid performance as a starting point. From a storage perspective, it could be a bit excessive unless your needs exceed 1G capacity. If you're aiming for something under 500M and want to cut costs, an older RB2011 model might suit better.
It really depends on the network setup. If your ISP relies on standard GPON or EPON (GPON is most common), this device could present challenges—especially in the xPON environment where devices are delivered with pre-authorized access. In such cases, you might need an SFP transceiver or a private xPON SPF transceiver from your ISP. For example, MikroTik provides an option at https://mikrotik.com/product/SFPONU.
If the technology isn’t GPON/EPON, it’s likely a standard P2P connection using WDM. When dealing with SC connectors, you’ll need SFP transceivers compatible with that type. For GPON/EPON setups, refer to my previous response.
The connector type matters too—APC or UPC—and the fiber kind (single mode vs multi-mode). If you’re unsure about all these terms, share photos of your equipment and we’ll clarify it together.
Note: I’ve mentioned SFP numerous times even though RB4011 includes an SFP+ port, which works backward. Unless you require a 10G transceiver, a 1G(-ish) SFP should suffice.
I appreciate your prompt replies and apologize for my inactivity—I didn’t receive notifications and therefore didn’t review them. I’ve spoken with my ISP, who confirmed they don’t provide additional services without extra charges, though they’re open to switching the router to bridge mode. Their equipment is the AN5506-04F (link provided). I’ll likely request they change it to that setting and use the Mikrotik router instead. Thank you for helping me understand correctly.