• Interface Specifications for SFP+ DAC Cables for the EX4600 Switch on page 60
• Interface Support for an EX4600 Switch on page 46
• Installing a Transceiver in an EX Series Switch on page 182
• Removing a Transceiver from an EX Series Switch on page 179
Interface Specifications for QSFP+ DAC Cables for the EX4600 Switch
Quad small form-factor pluggable plus (QSFP+) direct-attach copper (DAC) cables are
suitable for connections between EX4600 switches operating as a standalone switch.
The QSFP+ DAC cables consist of a cable assembly terminated with QSFP+ transceivers
on either end
You may use third-party DAC cables on the EX4600 switch. The minimum Junos OS
software release for third-party DAC cable support is Junos OS 13.2X51-D25.
CAUTION: We highly recommend using Juniper Networks DAC cables. You
can use DAC cables purchases from a third party at your own risk. If there is
a problem with the cable or the transceiver, support will not be provided. If
you choose to use a third-party able, it should meet the specifications
described in Table 27 on page 69 and Table 28 on page 71.
The 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.
Table 27 on page 69 describes the passive DAC cable specifications for QSFP+.
Active DAC cables have signal amplification and equalization built into the cable assembly.
Table 28 on page 71 describes the active DAC cable specifications.
Copyright © 2014, Juniper Networks, Inc.68
EX4600 Switch Hardware Guide
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