Cable Selection And Lengths - HBM Genesis GEN5i User Manual

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The two types of 10 Gbit SFP+ module that are used with this Ethernet card
are:
10 Gbit (850 nm) - Multi mode
l
10 Gbit (1310 nm) - Single mode
l
Note SFP modules rated at 1 Gbit and are not suitable for this card. Please select
the SFP+ modules which are rated at 10 Gbit.
Figure 11.34: SFP Optical Network devices
A
SFP shown with dust-cap and removal bar
SFP label - 850 or 1310 nm
B
Note 1310 nm Single Mode (SM) and 850 nm Multimode (MM) optical fiber
transceivers use specific cables and connectors therefore please check the
correct mode/specification of fiber optic cable is used.

Cable selection and lengths:

Cables require different properties when they exceed certain lengths based on
the properties of light in an optical fiber.
Single mode Cable is a type of cable that has a relatively small light carrying
core and therefore makes fewer internal reflections so that the
path of light is closer to a straight line and thus can travel further
distances.
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