Juniper EX4650 Series User Manual

CAUTION: Do not mix:
•
AC and DC power supplies in the same chassis
•
Power supplies with different airflow labels (AIR IN (AFI) and AIR OUT (AFO)) in the
same chassis.
•
Fan modules with different airflow labels (AIR IN (AFI) and AIR OUT (AFO)) in the same
chassis.
•
Power supplies and fan modules with different airflow labels (AIR IN (AFI) and AIR
OUT (AFO)) in the same chassis.
This topic includes:
Characteristics of a DC Power Supply
EX4650 switches support 550 W DC power supply (see Figure 22 on page 48).
Figure 22: DC Power Supply for an EX4650 Switch
You can install up to two DC power supplies in an EX4650 switch. Power supplies are installed in the
power supply slots labeled PSU 0 and PSU 1 in the rear panel of the chassis.
Table 18 on page 48 lists the details of the 550 W DC power supplies used in EX4650 switches.
Table 18: Details of the DC Power Supplies in EX4650 Switches
550 W DC Power SupplyDetails
•
JPSU-550-DC-AFO-A
•
JPSU-550-DC-AFI-A
Model number
Hot-insertable and hot-removableField-replaceable unit (FRU) type
2.43 lb (1.1 kg)Power supply weight
48

Juniper EX4650 Series Specifications

General

Cooling	Front-to-back or back-to-front airflow
Rack Units	1U
MAC address table size	288, 000 entries
Memory	16 GB
Storage	64 GB SSD
Power Supply	Dual redundant, hot-swappable
Junos OS	Supported
Jumbo frames	9216 bytes
Operating temperature	0°C to 40°C (32°F to 104°F)
Input voltage	AC: 100-240V
Fans	Hot-swappable, redundant
Operating humidity	5% to 90% (non-condensing)
Ports	48 x 10GbE SFP+/SFP28 ports 8 x 40GbE QSFP+/100GbE QSFP28 ports