Juniper EX4300 Hardware Guide

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 40 on page 141.
Figure 40: QSFP+ Direct Attach Copper Cables for EX Series Switches
This topic describes:
•
Cable Specifications on page 141
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 75 on page 141 describes the support for QSFP+ passive DAC cable lengths on
EX Series switches for Junos OS releases.
Table 75: Software Support for QSFP+ Passive Direct Attach Copper Cables for EX Series
Switches
DAC Model NumberSoftware Support AddedSwitch
•
EX-QSFP-40GE-DAC-50CM
•
QFX-QSFP-DAC-1M
•
QFX-QSFP-DAC-3M
•
JNP-QSFP-DAC-5M
Junos OS Release 15.1X53-D50EX3400 switches
141Copyright © 2017, Juniper Networks, Inc.
Chapter 8: Transceiver and Cable Specifications

Juniper EX4300 Specifications

General

Model	EX4300
Virtual Chassis	Yes, up to 10 members
Layer 3 Routing	Yes
10GBASE SFP+ Ports	4
Jumbo Frames	9216 bytes
MAC Address Table Size	32, 000
Operating System	Junos OS
Uplink Ports	4 x 10GBASE SFP+
Power Supply	AC or DC options
Operating Temperature	0°C to 45°C (32°F to 113°F)
Input Voltage	100-240V AC
Operating Relative Humidity	5 to 90% RH, non-condensing
Management Options	CLI, Web UI, Junos Space
Redundancy	Yes, power supply and fans
Storage Temperature	-40°F to 158°F (-40°C to 70°C)
Ports	24 or 48