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Chapter 4: Installing the SFP+ and QSFP+ Transceivers and Cables
56
Installing SFP+ Transceivers and Cables
General
Guidelines
Review the following guidelines before installing optional SFP+
transceivers or SFP+ direct attach cables in the switch:
SFP+ transceivers and SFP+ direct attach cables can be hot-
swapped while the switch is powered on. For a SFP+ transceiver,
you should always disconnect the fiber optic cable before
removing a module.
When you are installing a SFP+ transceiver, you should install the
module before connecting the fiber optic cable.
Fiber optic modules are dust sensitive. Always keep the plug in the
optical bores when a fiber optic cable is not installed or when you
store the module. When you do remove the plug, keep it for future
use.
Unnecessary removal and insertion of a module can lead to
premature failure.
Warning
A module can be damaged by static electricity. Be sure to observe
all standard electrostatic discharge (ESD) precautions, such as
wearing an antistatic wrist strap, to avoid damaging the device.
Go to “Optional SFP+ Transceivers” on page 17 for a list of
approved SFP+ transceivers for the AT-DC2552XS.
Allied Telesis recommends using the following SFP+ cables listed
in Table 9:
Table 9. SFP+ Cables
SFP+
Transceiver
Cable Used Max Transmission Distance
10GBASE-SR
AT-SP10SR
GI 50/125 multimode fiber
(In accordance with ITU-T
G.651)
66m(At 400MHz - km transmission band)
82m(At 500MHz - km transmission band)
300m(At 2000MHz - km transmission band)
GI 62.5/125 multimode fiber
26m(At 160MHz - km transmission band)
33m(At 200MHz - km transmission band)
10GBASE-LR
AT-SP10LR
Monomode fiber
(In accordance with ITU-T
G.652)
10km