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Forum Discussion
phuketmymac
Jan 16, 2024Aspirant
Fiber cable options for a 10Gb link between a M5300-28G3 and an XS708T
 Hello,     I have 2 switches to connect with a 10Gb link:  - XS708T (8 ports 10Gb Ethernet with 1 combo SFP+ port and without extension slots at the back)  - M5300-28G3 (24 Gigabit ports + 2 SFP+ por...
schumaku
Jan 16, 2024Guru - Experienced User
The official Netgear designation is:
SFP+ Transceiver 10GBASE-LRM (AXM763)
SFP+ Transceiver, 10GBase-LRM for multimode 62.5/125µm OM1 or OM2 fiber
On SFP and SFP+ modules, LC (Lucent Connectors), PC describes the ferule connection point. UPC is mechanically identical, providing much less loss, typically dark blue
OM1 (legacy 62.5/125µm, 100 Mb/s @ 100m or 1 Gb/s @ 33m, orange ) or OM2 (legacy 50/125µm, 1Gb/s @ 100m or 10 Gb/s @ 82 m, orange) are the minimum fiber requirements for these multimode fiber link connections.
All OM3 (10Gb/s @ 300m, LOMMF, aqua), OM4 (10 Gb/s @ 550m, VSCEL laser), and OM5 (min.28Gbps per channel in the 850-953 nm color window, WBMMF (wideband multimode fiber), lime green) fibers are with 50/125µm on the same core size, and are backward compatible.
Avoid the LC APC (typically green), optically slightly better, except where required, works on APC to APC connections only.
If buying from the grab table, avoid Single Mode Fiber (SMF), typically 9/125um (exists with 8.3...10 micron core diameter also on 125um), often typed as OS1 and OS2 to be combined with Multi Mode Fiber (MMF). SMF deploy different optics, different senders and receivers - but also on LC PC and and LC UPC, in the field more with LC APC and more exotic connectors. With the appropriate modules, these can operate short reach connections but up to 200 kilometers.
Unless you know exactly what you buy, and what you get, be careful - some switches are more critical. Broadcom equipped modules are typically less cumbersome than others. The older M5300 don't "take everything".
- phuketmymacJan 22, 2024Aspirant
Thank you very much for the detailed answer.
 
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