Juniper EX4100 User Manual

Table 20: Airow Direcon in AC Power Supply Models for EX4100 Switches
Model Label on Power Supply Direcon of Airow
• JPSU-920-AC-AFO
• JPSU-150-AC-AFO
AIR OUT Front to back. Air to cool the chassis
enters through the vents on the
front panel of the chassis. Hot air
exits through the vents on the rear
panel of the chassis.
• JPSU-150-AC-AFI
AIR IN Back to front. Air to cool the chassis
enters through the vents on the rear
panel of the chassis. Hot air exits
through the vents on the front
panel of the chassis.
Specicaons of the Power Cord for AC Power Supplies for EX4100 and EX4100-F
Switches
A detachable AC power cord is supplied with the AC power supplies. The coupler is type C13 as
described by Internaonal Electrotechnical Commission (IEC) standard 60320. The plug end of the
power cord ts into the power source outlet that is standard for your geographical locaon.
CAUTION: The AC power cord provided with each power supply is intended for use
with that power supply only and not for any other use.
NOTE: In North America, AC power cords must not exceed 4.5 meters (approximately 14.75 feet)
in length, to comply with Naonal Electrical Code (NEC) Secons 400-8 (NFPA 75, 5-2.2) and
210-52 and with Canadian Electrical Code (CEC) Secon 4-010(3). The cords supplied with the
switch are in compliance.
Table 21 on page 76 gives the AC power cord specicaons for the countries and regions listed in the
table.
75

Juniper EX4100 Specifications

General

Model	EX4100
Category	Switch
Layer	Layer 2/3
Power Consumption	Varies by model and configuration
PoE	Optional
Management	Web UI, CLI, SNMP
Operating Temperature	0°C to 45°C
Input Voltage	100-240V AC
Storage Temperature	-40°C to 70°C
Humidity	5% to 90% non-condensing
DC Power Input	-48V DC
JUNOS OS	Yes
Security Features	ACLs
Layer 2 Features	VLAN, RSTP, MSTP, LACP
Layer 3 Features	Static routing, OSPF
QoS	8 queues per port