EX4300-48P

Model:	EX4300-24P
Physical Specifications
Backplane	320 Gbps Virtual Chassis interconnect to combine up to 10 units as a single logical device
Uplink Module Options	4-port dual-mode 10GbE/1GbE module with pluggable SFP+/SFP optics
Dimensions (W x H x D)	17.41 x 1.72 x 16.43 in (44.21 x 4.32 x 41.73 cm) Desktop installation width noted above, rack-mount width is 17.5 in (44.5 cm) Height: 1 rack unit (1 U)
Weight	EX4300 switch (no power supply or fan module): 13 lb (5.9 kg) EX4300 switch (with single power supply and two fan modules): 16.1 lb (7.3 kg) 1100 W AC power supply: 2.4 lb (1.1 kg) SFP+ uplink module: 0.44 lb (0.2 kg) Fan module: 0.33 lb (0.15 kg)
Rack mountable	1 Rack Unit
Hardware Specifications
Switching Engine Model	Store and forward
DRAM	2 GB with Error Correcting Code (ECC)
Flash	2 GB
CPU	1.5 GHz Dual-Core PowerPC CPU
GbE port density per system	56 (48 host ports + four 40GbE ports + optional fourport 1/10GbE uplink module)
10GbE port density per system	4 (uplink module)
40GbE port density per system	4
Packet Switching Capacities	496 Gbps
Layer 2 Throughput (Mpps)	369 Mpps (wire speed)
Supported Optics	GbE SFP optic/connector type: LC SFP fiber supporting SX (multimode), LX (single-mode) 10GbE SFP+ optic/connector type: 10GbE SFP+ LC connector, SR (multimode), USR (multimode), LR (single-mode), ER (singlemode), LRM (multimode), and DAC (direct-attach copper) 40 GbE QSFP+ optic/connector type: 40GbE QSFP+ LC connector type, SR (multimode), DAC (direct-attach copper)
Physical Layer	Time Domain Reflectometry (TDR) for detecting cable breaks and shorts: 24P/24T and 48P/48T only Auto medium-dependent interface/medium-dependent interface crossover (MDI/MDIX) support: 24P/24T and 48P/48T only (all ports) Port speed downshift/setting maximum advertised speed on 10/100/1000BASE-T ports: 24P/24T and 48P/48T only, on all ports Digital optical monitoring for optical ports
Power Options
Power Supply Rating	1100 W AC dual load-sharing hot-swappable internal redundant power supplies
PoE Budget	900 W
Maximum Current Inrush	50 amps
Minimum number of PSUs required for fully loaded chassis	1 per switch
Environment
Operating Temperature	32° to 113° F (0º to 45º C)
Storage Temperature	-40º to 158º F (-40º to 70º C)
Relative Humidity (Operating)	10% to 85% (noncondensing)
Relative Humidity (Non-Operating)	0% to 95% (noncondensing)
Altitude (Operating)	Up to 10,000 ft (3,048 m)
Altitude (Non-Operating)	Up to 16,000 ft (4,877 m)
Cooling Airflow	AFO (Front-to-back airflow)
Noise Specifications
Noise Specifications	Noise measurements based on operational tests taken from bystander position (front) and performed at 23° C in compliance with ISO 7779
Acoustic Noise in DBA	51.0
Safety and Compliance
Safety Certifications	UL-UL60950-1 (First Edition) C-UL to CAN/CSA 22.2 No. 60950-1 (First Edition) TUV/GS to EN 60950-1, Amendment A1-A4, A11 EN 60950-1 (2006 +A1:2009+A12:2010) Information Technology Equipment—Safety IEC 60950-1 (2005 +A1:2009) Information Technology Equipment—Safety
Electromagnetic Compatibility Certifications	FCC 47CFR Part 15 Class A EN 55022 Class A ICES-003 Class A VCCI Class A AS/NZS CISPR 22 Class A CISPR 22 Class A EN 55024 EN 300386 CE
NEBS	GR-1089-Core: EMC and Electrical Safety for Network Telecommunications Equipment
Environmental	Reduction of Hazardous Substances (ROHS) 6/6
Telco	CLEI code
Warranty	Limited lifetime switch hardware warranty