Allied Telesis AT-x950-28XSQ, Installation Manual

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AT-x950-28XSQ Switch and VCStack Installation Guide
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Ports 25 to 37 for 40Gbps QSFP+ or 100Gbps QSFP28 Transceivers, or
Breakout Cables
Ports 25, 29, 33, and 37 support the following types of transceivers and
cables:

100Gbps QSFP28 transceivers

40Gbps QSFP+ transceivers

10Gbps breakout cables
QSFP28
Transceivers
The ports support the following 100Gbps QSFP28 transceivers:
 QSFP28SR4 transceiver - Maximum operating distance of 70m
(230 ft) or 100m (328 ft) with 12-strand OM3 or OM4 fiber optic
cable, respectively. Requires an MPO pluggable optical connector.
 QSFP28LR4 transceiver - Operating range of 2m (6.6 ft) to 10km
(6.2 mi) with single-mode fiber optic cable. Requires a duplex LC
connector.
 QSFP28-1CU and QSFP28-3CU direct attach cables - Lengths of
one and three meters, respectively.
QSFP+
Transceivers
The ports support the following 40Gbps QSFP+ transceivers:
 QSFPSR4 transceiver - Maximum operating distance of 150m (492
ft) with 12-strand OM4 fiber optic cable.
 QSFPLR4 transceiver - Maximum operating distance of 2m (6.6 ft)
to 10km (6.2 mi) with single-mode fiber optic cable.
 QSFP1CU and QSFP3CU direct attach cables - Lengths of 1 and 3
meters, respectively.
Breakout Cables
The ports also support copper and fiber optic breakout cables that convert
them from 40Gbps ports to four SFP+ 10Gbps ports. The model names of
the copper cables are QSFP-4SFP10G-3CU and QSFP-4SFP10G-5CU.
The cables are in lengths of 3 and 5 meters, respectively. Refer to
Figure 4.
Figure 4. QSFP-4SFP10G-3CU or QSFP-4SFP10G-5CU Copper
Breakout Cable
The fiber optic breakout cables are ET3-MPO08-4LC-5 and ET3-MPO08-