Model:	EX4300-48T-DC
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) 550 W DC 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	550 W DC input voltage range 36-72 V; dual input feed, dual load-sharing hot-swappable internal redundant power supplies
PoE Budget	0 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	39.7
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

Các module quang dưới đây có thể sử dụng cho Switch Juniper EX4300-48T-DC

Module quang Juniper EX-QSFP-40GE-DAC-50CM QSFP+ to QSFP+  40 Gigabit Ethernet  Direct Attach Copper (twinax copper cable) 50cm Passive
Module quang Juniper EX-SFP-10GE-DAC-1M SFP+ 10 Gigabit Ethernet Direct Attach Copper (twinax copper cable) 1m
Module quang Juniper EX-SFP-10GE-DAC-3M SFP+ 10 Gigabit Ethernet Direct Attach Copper (twinax copper cable) 3m
Module quang Juniper EX-SFP-10GE-DAC-5M SFP+ 10 Gigabit Ethernet Direct Attach Copper (twinax copper cable) 5m
Module quang Juniper EX-SFP-10GE-DAC-7M SFP+ 10 Gigabit Ethernet Direct Attach Copper (twinax copper cable) 7m
Module quang Juniper EX-SFP-10GE-ER SFP+ 10GBase-ER 10 Gigabit Ethernet Optics, 1550nm for 40km transmission on SMF
Module quang Juniper EX-SFP-10GE-LR SFP+ 10GBase-LR 10 Gigabit Ethernet Optics, 1310nm for 10km transmission on SMF
Module quang Juniper EX-SFP-10GE-LRM SFP+ 10 Gigabit Ethernet LRM Optics, 1310nm for 220m transmission on MMF
Module quang Juniper EX-SFP-10GE-SR SFP+ 10GBase-SR 10 Gigabit Ethernet Optics, 850nm for up to 300m transmission on MMF
Module quang Juniper EX-SFP-10GE-USR SFP+ 10 Gigabit Ethernet Ultra Short Reach Optics, 850 nm for 10m on OM1, 20m on OM2, 100m on OM3 multi-mode fiber
Module quang Juniper EX-SFP-10GE-ZR SFP+ 10GBase-ZR 10 Gigabit Ethernet Optics, 1550nm for 80km Transmission on SMF
Module quang Juniper EX-SFP-1FE-FX  SFP 100Base-FX Fast Ethernet Optics, 1310nm for 2km transmission on MMF
Module quang Juniper EX-SFP-1FE-LX  SFP 100base-LX Fast Ethernet Optics, 1310nm for 10km transmission on SMF
Module quang Juniper EX-SFP-1FE-LX40K  SFP FE 100base-LX Fast Ethernet Optics, 1550nm for 40km transmission on SMF
Module quang Juniper EX-SFP-1GE-SX  SFP 1000Base-SX Gigabit Ethernet Optics, 850nm for upto 550m transmission on MMF
Module quang Juniper EX-SFP-1GE-T  SFP 1000Base-T 10/100/1000 Copper Transceiver Module for up to 100m transmission on Cat5
Module quang Juniper  EX-XFP-10GE-ZR  8-Pack SFP+ 10GBase SR  Optics for all QFX and EX series
Module quang Juniper  JNP-1G-SX-8PACK 8-Pack SFP 1GBase SX Optics  for all QFX and EX series
Module quang Juniper  JNP-1G-T-8PACK 8-Pack SFP 1GBaseT Optics  for all QFX and EX series
Module quang Juniper JNP-40G-LX4-4PACK  4-Pack QSFP+ 40GBase LX4 Optics for all QFX and EX series 
Module quang Juniper JNP-QSFP-40G-LR4 QSFP+ 40GBase-LR4 40 Gigabit Optics, 1310nm for up to 10km Transmission on SMF
Module quang Juniper JNP-QSFP-40G-LX4 QSFP+ 40GBase-LX4 40 Gigabit Optics, 100m(150m) with OM3(OM4) duplex  MMF fiber
Module quang Juniper JNP-QSFP-DAC-5M QSFP+ to QSFP+  Ethernet Direct Attach Copper (twinax copper cable) 5m Passive
Module quang Juniper QFX-QSFP-40G-ESR4 QSFP+ 40GBase-ESR4 40 Gigabit Optic. 300m(400m) with  OM3(OM4) MMF
Module quang Juniper QFX-QSFP-40G-SR4 QSFP+ 40GBase-SR4 40 Gigabit Optics, 850nm for up to 150m transmission on MMF
Module quang Juniper QFX-QSFP-DAC-1M QSFP+ to QSFP+  Ethernet Direct Attach Copper (twinax copper cable) 1m Passive
Module quang Juniper QFX-QSFP-DAC-3M QSFP+ to QSFP+  Ethernet Direct Attach Copper (twinax copper cable) 3m Passive

EX4300 Line of Ethernet Switches
Model:	Access Port Configuration	PoE/PoE+ Ports	PoE Budget	Power Supply Rating	Airflow
EX4300-24T	24-port 10/100/1000BASE-T	0	0 W	350 W AC	AFO (Front-to-back airflow )
EX4300-24P	24-port 10/100/1000BASE-T	24	500 W	715 W AC	AFO (Front-to-back airflow )
EX4300-48T	48-port 10/100/1000BASE-T	0	0 W	350 W AC	AFO (Front-to-back airflow )
EX4300-48P	48-port 10/100/1000BASE-T	48	900 W	1100 W AC	AFO (Front-to-back airflow )
EX4300-48T-AFI	48-port 10/100/1000BASE-T	0	0 W	350 W AC	AFI (Back-to-front airflow)
EX4300-48T-DC	48-port 10/100/1000BASE-T	0	0 W	550 W DC	AFO (Front-to-back airflow )
EX4300-48T-DC-AFI	48-port 10/100/1000BASE-T	0	0 W	550 W DC	AFI (Back-to-front airflow)

 

Model	Power Supply Rating	Acoustic Noise
EX4300-24T	350 W AC AFO	38.5
EX4300-24P	350 W AC AFO	37.8
EX4300-48T	350 W AC AFI	38.9
EX4300-48P	715 W AC AFO	39.7
EX4300-48T-AFI	1100 W AC AFO	51.0
EX4300-48T-DC	350 W AC AFO	39.7
EX4300-48T-DC-AFI	350 W AC AFO	39.7

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- Made in China
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