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Juniper EX4300 Hardware Guide

Juniper EX4300
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CHAPTER 9
Pinout Specifications
Console Port Connector Pinout Information on page 149
Mini-USB Port Pinout Specifications on page 150
USB Port Specifications for an EX Series Switch on page 150
RJ-45 Management Port Connector Pinout Information on page 152
RJ-45 Port, QSFP+ Port, SFP+ Port, and SFP Port Connector Pinout
Information on page 152
RJ-45 to DB-9 Serial Port Adapter Pinout Information on page 157
Console Port Connector Pinout Information
The console port on a Juniper Networks device is an RS-232 serial interface that uses an
RJ-45 connector to connect to a console management device. The default baud rate for
the console port is 9600 baud.
Table 78 on page 149 provides the pinout information for the RJ-45 console connector.
NOTE: If your laptop or PC does not have a DB-9 male connector pin and you
want to connect your laptop or PC directly to a device, use a combination of
the RJ-45 to DB-9 female adapter and a USB to DB-9 male adapter. You
must provide the USB to DB-9 male adapter.
Table 78: Console Port Connector Pinout Information
DescriptionSignalPin
Request to sendRTS Output1
Data terminal readyDTR Output2
Transmit dataTxD Output3
Signal groundSignal Ground4
Signal groundSignal Ground5
149Copyright © 2017, Juniper Networks, Inc.

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Juniper EX4300 Specifications

General IconGeneral
ModelEX4300
Virtual ChassisYes, up to 10 members
Layer 3 RoutingYes
10GBASE SFP+ Ports4
Jumbo Frames9216 bytes
MAC Address Table Size32, 000
Operating SystemJunos OS
Uplink Ports4 x 10GBASE SFP+
Power SupplyAC or DC options
Operating Temperature0°C to 45°C (32°F to 113°F)
Input Voltage100-240V AC
Operating Relative Humidity5 to 90% RH, non-condensing
Management OptionsCLI, Web UI, Junos Space
RedundancyYes, power supply and fans
Storage Temperature-40°F to 158°F (-40°C to 70°C)
Ports24 or 48

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