Qsfp+ Direct Attach Copper Cables For Ex Series Switches - Juniper EX9253 Hardware Manual

QSFP+ Direct Attach Copper Cables for EX Series Switches

IN THIS SECTION
Cable Specifications | 61
DAC Cables Supported on EX3400, EX4300, EX4550, EX4600, EX9251, and EX9253 Switches | 62
Quad small form-factor pluggable plus (QSFP+) direct attach copper (DAC) cables are suitable for in-rack
connections between QSFP+ ports on EX3400, EX4300, EX4550, EX4600, EX9251, and EX9253
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 QSFP+ DAC cables purchased from Juniper Networks
with your Juniper Networks device.
CAUTION: The Juniper Networks Technical Assistance Center (JTAC) provides
complete support for Juniper-supplied optical modules and cables. However, JTAC does
not provide support for third-party optical modules and cables that are not qualified or
supplied by Juniper Networks. If you face a problem running a Juniper device that uses
third-party optical modules or cables, JTAC may help you diagnose host-related issues if
the observed issue is not, in the opinion of JTAC, related to the use of the third-party
optical modules or cables. Your JTAC engineer will likely request that you check the
third-party optical module or cable and, if required, replace it with an equivalent
Juniper-qualified component.
Use of third-party optical modules with high-power consumption (for example,
coherent ZR or ZR+) can potentially cause thermal damage to or reduce the lifespan of
the host equipment. Any damage to the host equipment due to the use of third-party
optical modules or cables is the users' responsibility. Juniper Networks will accept no
liability for any damage caused due to such use.
Cable Specifications
QSFP+ passive DAC cables are hot-removable and hot-insertable. A cable consists of a cable assembly
that connects directly into two QSFP+ modules, one at each end of the cable. The cables use integrated
duplex serial data links for bidirectional communication and are designed for data rates up to 40 Gbps.
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