Allied Telesis AT-DC2552XS, Installation Manual, Page: 73 / 96

AT-DC2552XS / L3 Enterprise Core Switch Installation Guide
73
Installing QSFP+ Transceivers and Cables
Review the following guidelines before installing optional QSFP+
transceivers in the switch:

QSFP+ transceivers can be hot-swapped while the switch is
powered on. However, you should always disconnect the fiber
optic cables first before removing a module.

You should install the module before connecting the fiber optic
cable.

Unnecessary removal and insertion of a module can lead to
premature failure.

Go to “Optional QSFP+ Transceivers” on page 18 for a list of
approved QSFP+ transceivers for the AT-DC2552XS / L3.

Allied Telesis recommends using the following SFP+ cables listed
in Table 10:
Installing a
QSFP+
Transceiver
Perform the following procedure to install a QSFP+ transceiver:
1. Remove the module from its shipping container and store the
packaging material in a safe location.
2. Remove the dust cover from the chassis QSFP+ slot. See Figure 37
on page 74.
Table 10. QSFP+ Cables
Port Cable Used Max Transmission Distance
40GBASE-SR4
AT-QSFPSR GI 50/125 multimode fiber
(In accordance with ITU-T
G.651)
26m (At 400MHz - km transmission band)
30m (At 500MHz - km transmission band)
100m (At 2000MHz - km transmission band)
150m (At 4700MHz - km transmission band)
ET3-MTP 12-1 MTHTP cable for AT-QSFPSR
GI 50/125 multimode fiber
(In accordance with ITU-T
G.651) 1m
ET3-MTP 12-5 5m