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.
Multi Mode
Cable is a type of cable that has a relatively thicker light
carrying core. Light in a thicker core makes more reflections
and is therefore only suited to shorter distances. The following
table shows what mode of fiber is required for each distance
covered.
For Installation and removal of the SFP+ module see section "Installing a 1 Gbit
SFP/10 Gbit SFP+ Module" on page 217.
10 Gbit Ethernet card in GENDAQ series networks
There are several different ways to connect individual components together
when using the 10 Gbit Ethernet card therefore this card allows the user more
freedom to set up their system with different configurations.
The 10 Gbit Ethernet card can essentially be used to communicate at double
the throughput speed of the standard 1 Gbit Ethernet or with more advanced
setups can act as a manually switchable storage selector or even a dual
communication and storage interface.
The following Figure 11.53 shows a simple setup using the 10 Gbit Ethernet
card. A PC with an optical Ethernet interface which has SFP+ support is
connected via optical cable to the interface of the 10 Gbit Ethernet card option
of the GENDAQ unit. This setup utilizes the higher speed communication of the
10 Gbit Ethernet card for communication with Perception.
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