Juniper EX4300 Series User Manual

Table 67: QSFP+ and QSFP28 Network Port Connector Pinout Informaon (Connued)
Pin Signal
31 Reserved
32 GND
33 TX3p
34 TX3n
35 GND
36 TX1p
37 TX1n
38 GND
RJ-45 to DB-9 Serial Port Adapter Pinout Informaon
The console port on a Juniper Networks device is an RS-232 serial interface that uses an RJ-45
connector to connect to a management device such as a laptop or a desktop PC. If your laptop or
desktop PC does not have a DB-9 plug connector pin and you want to connect your laptop or desktop
PC to the device, use a combinaon of the RJ-45 to DB-9 socket adapter along with a USB to DB-9 plug
adapter.
Table 68 on page 163 provides the pinout informaon for the RJ-45 to DB-9 serial port adapter.
Table 68: RJ-45 to DB-9 Serial Port Adapter Pinout
Informaon
RJ-45 pin Signal DB-9 pin Signal
1 RTS 8 CTS
163

Juniper EX4300 Series Specifications

General

Product Series	EX4300 Series
Power Consumption	Varies by model and configuration
Virtual Chassis Technology	Up to 10 switches
Software	Junos OS
Ports	24-port and 48-port models
10GBASE SFP+ Ports	Up to 8 ports
40GBASE QSFP+ Ports	2
Uplink Ports	Up to 4 ports
Jumbo Frames	Up to 9216 bytes
Operating Temperature	0°C to 45°C
Relative Humidity	5% to 90% noncondensing
Input Voltage	100 to 240V AC
Power Supply	AC or DC
Power Supply Options	AC or DC
Stacking	Yes
Layer 2 Features	Includes VLAN, STP, RSTP, MSTP, LACP
Layer 3 Features	OSPF, BGP
Management	CLI, Web GUI, SNMP
Security Features	DHCP snooping
QoS	8 queues per port, DSCP
Storage Temperature	-40°C to 70°C