Name: JL557AR HPE 2930F 48G PoE+ 4SFP Layer 3 Switch 48-Port
Brand: HPE
SKU: JL557AR
Price: 1390.40 USD
Availability: InStock
Rating: 4.8 (130 reviews)

Product Overview
The HPE 2930F 48G PoE+ 4SFP Layer 3 Switch (JL557AR) provides 48 Gigabit Ethernet ports with PoE+ capabilities and four SFP fiber uplinks. It supports Layer 3 switching features including inter-VLAN routing, making it suitable for enterprise network environments requiring high port density and advanced routing functions.

General Information
Brand	HPE
Condition	Refurbished

Technical Information
Switch Type	Layer 3, Managed Switch, PoE Switch, Gigabit Switch
Mount Type	1U Rack
Switch Ports	48
Number of Ports	48-Ports
Port Type	10/100/1000Base-T, 1000Base-X, SFP, USB Console, Serial Console (RJ-45)
Port Speed	10/100/1000Base-T
UpLink Ports	4
POE Support	PoE+
Switching Capacity	176 Gbps
DRAM	512 MB
Flash Memory	256 MB
VLAN Support	Yes
Max VLANs Supported	1-4094
Stackable	Yes
Layer Support	Layer 3
Connector Type	RJ-45,SFP

Performance
Jumbo Frame Support	Up To 9216 Bytes
MAC Address Table Size	32000

Management and Configuration
Routing Protocols	Static, RIP, VRRP, IGMP
Remote Protocols	Yes
Management Interfaces	Web (HTTPS), CLI (SSH, Telnet), SNMP v1/v2c/v3, Console (USB, RJ-45)
Security Features	802.1X,ACLs,RADIUS/TACACS,MAC Authentication,DHCP Snooping,IP Source Guard,ARP Inspection,Storm Control,DoS Protection
Management Type	Managed
Remote Management Protocol	SNMP,SSH,HTTPS,Telnet,RMON

Power & Cooling
Fans	Internal (variable-speed)
Power	370W (PoE budget)
Power Supply	Internal 370W AC

Physical Characteristics
Weight	3.00
Operating Temperature	0°C to 45°C

Miscellaneous
Eco Friendly	Yes
Assembly Required	No
Compliance Standards	WEEE, RoHS, CE, FCC, UL, TUV

Product Description
The HPE 2930F 48G PoE+ 4SFP Layer 3 Switch (JL557AR) delivers robust switching capabilities with 48 Gigabit Ethernet ports that support Power over Ethernet Plus (PoE+). This switch includes 4 SFP ports for flexible fiber uplink connections, suitable for diverse network infrastructures. It is commonly deployed in enterprise and campus networks where Layer 3 routing functionality is required alongside high port density. Network administrators and IT professionals benefit from its combination of PoE+ power delivery and advanced switching features to support a range of devices and applications. Key Features 48 Gigabit Ethernet ports with PoE+ support deliver power and data over a single cable Four SFP ports enable fiber uplinks for extended network reach Layer 3 switching capabilities support inter-VLAN routing and static routing Scalable port density suitable for wired access or aggregation Designed to integrate into enterprise network architectures This switch plays a key role in managing network traffic and powering devices such as IP phones, wireless access points, and security cameras. Its Layer 3 features help optimize internal network routing, enhancing overall network efficiency in medium to large network deployments.

Use Cases
This switch is typically used in enterprise campus and branch office environments that require dense port counts with PoE+ support for powering network devices. It fits well in settings where Layer 3 routing is necessary to facilitate communication between VLANs and subnets. How It's Used: Powering and connecting IP phones and wireless access points in office networks Providing fiber uplinks to core switches or aggregation points Implementing inter-VLAN routing in medium to large enterprise LANs Supporting network segmentation and traffic management with Layer 3 features Deploying in environments requiring a mix of copper and fiber connectivity Overall, the switch supports the network's infrastructure by combining data connectivity with power delivery and advanced routing, suitable for organizations managing multiple VLANs and powered devices in structured networks.

FAQ's
What does PoE+ mean on this switch? PoE+ (Power over Ethernet Plus) allows the switch's Ethernet ports to supply up to 30 watts of power to connected devices such as IP phones and wireless access points over the network cable. How many SFP ports does the JL557AR have? The JL557AR switch includes 4 SFP ports for fiber optic uplink connections, enabling flexible integration with fiber network infrastructure. What Layer 3 features does this HPE switch support? This switch supports Layer 3 functionalities like inter-VLAN routing and static routing, enabling routing between different network segments within an enterprise LAN. Can this switch power wireless access points directly? Yes, with PoE+ support on its 48 Gigabit Ethernet ports, the switch can supply power directly to wireless access points without separate power sources. Is the JL557AR suitable for large enterprise networks? The switch is designed for medium to large enterprise environments, offering 48 PoE+ ports and Layer 3 capabilities appropriate for such network sizes. What type of devices connect to the SFP ports? The SFP ports are intended for fiber optic transceivers, which enable uplinks to other switches or network segments over fiber cabling.