Allied Telesis AT-DC2552XS, Installation Manual, Page: 68 / 96

Chapter 5: Installing the SFP+ and QSFP+ Transceivers and Cables
68
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 an SFP+ transceiver,
you should always disconnect the fiber optic cable before
removing a module.

When you are installing an 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 / L3.

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