NOTE: We recommend that you use only optical transceivers and optical connectors purchased
from Juniper Networks with your Juniper Networks device.
CAUTION: If you face a problem running a Juniper Networks device that uses a third-party
optic or cable, the Juniper Networks Technical Assistance Center (JTAC) can help you
diagnose the source of the problem. Your JTAC engineer might recommend that you
check the third-party optic or cable and potentially replace it with an equivalent Juniper
Networks optic or cable that is qualified for the device.
The Gigabit Ethernet SFP, SFP+, SFP28, QSFP+, and QSFP28 transceivers installed in QFX5120 switches
support digital optical monitoring (DOM): You can view the diagnostic details for these transceivers by
issuing the operational mode CLI command show interfaces diagnostics.
SFP28 Direct Attach Copper Cables for QFX5120 Switches
IN THIS SECTION
Cable Specifications | 75
Standards Supported by These Cables | 75
Small form-factor pluggable transceiver (SFP28) direct attach copper (DAC) cables, also known as Twinax
cables, are suitable for in-rack connections between servers and switches. They are suitable for short
distances, making them ideal for highly cost-effective networking connectivity within a rack and between
adjacent racks.
NOTE: We recommend that you use only SFP28 DAC cables purchased from Juniper Networks
with your Juniper Networks device.
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