Standards Supported by These Cables
The cables comply with the following standards:
•
SFP mechanical standard SFF-843—see ftp://ftp.seagate.com/sff/SFF-8431.PDF.
•
Electrical interface standard SFF-8432—see ftp://ftp.seagate.com/sff/SFF-8432.PDF.
•
SFP+ Multi-Source Alliance (MSA) standards
Related
Documentation
Pluggable Transceivers Supported on EX Series Switches on page 132•
• Installing a Transceiver in a Switch on page 255
• Removing a Transceiver from a Switch on page 257
QSFP+ Direct Attach Copper Cables for EX Series Switches
Quad small form-factor pluggable plus (QSFP+) direct attach copper (DAC) cables are
suitable for in-rack connections between QSFP+ ports of EX Series switches. See
Figure 42 on page 138.
Figure 42: QSFP+ Direct Attach Copper Cables for EX Series Switches
This topic describes:
•
Cable Specifications on page 138
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. Passive DAC cables have no signal
amplification built into the cable assembly. For the full specifications of these cables,
see The Hardware Compatibility Tool.
Table 57 on page 139 describes the support for QSFP+ passive DAC cable lengths on
EX Series switches for Junos OS releases.
Copyright © 2017, Juniper Networks, Inc.138
EX9208 Switch Hardware Guide
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