AP-SG4500-52GT-4SFP

48Ports L2 Gigabit Access Switch

  • 48x10/100/1000Base-T+4x100/1000Base-X (SFP)
  • 1 console, 1 reset port
  • AC power supply
  • Switching capacity: 104Gbps
  • Forwarding rate: 77.4Mpps

Product Overview

The AirPro AP-SG4500-52GT-4SFP is a fully managed Gigabit Ethernet access switch designed to deliver reliable, secure, and cost-effective connectivity for enterprise campus, branch, and service-provider access networks.

Built for business-critical access environments, the switch combines high-density Gigabit Ethernet connectivity with advanced Layer 2 switching, comprehensive security, and flexible management capabilities. Its enterprise-class feature set helps simplify network operations while supporting scalable deployment across wired access infrastructures.

With integrated traffic control, network protection, and management functions, the AP-SG4500-52GT-4SFP provides a dependable foundation for connecting users, devices, and network services at the access layer. It is well suited for enterprise, campus, branch, and carrier access deployments that require consistent performance, operational simplicity, and secure network access.

Key Features

Energy-Efficient Operation

The AirPro AP-SG4500-52GT-4SFP is designed to reduce power consumption without compromising network performance. Support for IEEE 802.3az Energy-Efficient Ethernet helps lower energy usage during periods of reduced traffic activity.

Configurable port LED scheduling allows administrators to disable port indicators during defined time periods, supporting additional energy savings in environments where continuous visual status indication is not required.

The switch also incorporates intelligent thermal-management strategies, including low-noise cooling and temperature-aware fan control where applicable, helping maintain efficient operation while reducing acoustic impact in office, branch, and campus environments.

Comprehensive Access Security

The AP-SG4500-52GT-4SFP provides a broad set of Layer 2 security capabilities designed to protect users, devices, and network infrastructure.

Integrated protection against common denial-of-service threats—including SYN flood, LAND, and ICMP flood attacks—helps improve network resilience. BPDU Guard and Root Guard protect the spanning-tree topology by preventing unauthorized or incorrectly configured edge devices from affecting root-bridge selection.

IEEE 802.1X port-based authentication enables identity-based network access control using standards-based RADIUS servers, helping ensure that only authorized users and devices can access the network.

Flexible Access Control Lists (ACLs) provide granular traffic filtering and policy enforcement based on defined security criteria, helping restrict access to sensitive resources and support differentiated forwarding policies.

DHCP, ARP, and MAC Protection

The AP-SG4500-52GT-4SFP includes integrated protection against common Layer 2 access-network threats.

DHCP Snooping distinguishes trusted and untrusted interfaces to help prevent unauthorized DHCP servers and DHCP-based attacks. DHCP Snooping bindings and Option 82 can be used with additional access-control mechanisms, including IEEE 802.1X and ARP protection, to strengthen user and device validation.

Additional security capabilities such as ARP Guard, anti-ARP scanning, and MAC-based security controls help defend against address spoofing, unauthorized access, and other Layer 2 attacks.

Resilient Uplink Connectivity

The AP-SG4500-52GT-4SFP provides four Gigabit Ethernet uplink ports, enabling flexible redundant uplink designs and resilient access-layer connectivity.

These uplinks can be integrated into ring and redundant network topologies to improve availability, simplify expansion, and provide greater protection against individual link failures.

Fast Ethernet Ring Protection

Support for ITU-T G.8032 Ethernet Ring Protection Switching (ERPS) enables rapid fault recovery in Ethernet ring deployments.

G.8032-based protection can deliver recovery times of less than 50 milliseconds under appropriate network conditions, helping maintain service continuity for business-critical applications. Support for G.8032 Version 2 enables deployment across a range of ring architectures, including single-ring, interconnected-ring, and multi-ring topologies.

Optimized Multicast Delivery

The AP-SG4500-52GT-4SFP provides multicast-control capabilities designed to improve bandwidth efficiency and application performance.

IGMP Snooping limits multicast traffic to ports with active multicast receivers, helping prevent unnecessary flooding across the access network.

Support for Multicast VLAN Registration (MVR) enables multicast streams to be shared efficiently across multiple subscriber VLANs while maintaining logical traffic separation. MVR trunk capabilities further simplify multicast distribution by allowing multicast services to be transported across shared uplinks, reducing bandwidth consumption and improving network resource utilization.

Hardware Specifications

Access ports 48 × 10/100/1000BASE-T RJ-45
Uplink ports 4 × 100/1000BASE-X SFP
Auto-MDI/MDIX Supported
Switching capacity 104 Gbps
Forwarding performance 77.4 Mpps
MAC address table 16K entries
Jumbo-frame support Up to 12K bytes
ACL table 2,304 entries
Hardware queues 8 queues per port
VLAN capacity Up to 4K VLANs
Forwarding architecture Store-and-forward

Physical and Environmental Specifications

Dimensions (W × H × D) 442 × 43.6 × 240 mm
AC input 100–240 VAC, 50/60 Hz
Power consumption 36 W
Cooling Active cooling (R2.0) / passive cooling (R3.0)
Operating temperature 0°C to 50°C
Storage temperature –40°C to 70°C
Relative humidity 5% to 95%, non-condensing
Compliance CE, RoHS
PoE support Not supported

Software Specifications

VLAN standards Port-based VLAN and IEEE 802.1Q VLAN
Advanced VLAN services Private VLAN, protocol-based VLAN, voice VLAN, and MAC-based VLAN
VLAN tunneling Q-in-Q, selective Q-in-Q, and flexible Q-in-Q
VLAN translation VLAN translation and N:1 VLAN translation
Storm control Broadcast, multicast, and unknown-unicast storm control based on packet rate or bandwidth

DHCP Services

DHCP client IPv4 and IPv6 DHCP client
DHCP server IPv4 and IPv6 DHCP server
DHCP relay IPv4 and IPv6 DHCP relay
DHCP snooping IPv4 and IPv6 DHCP snooping
DHCP options Option 82 and DHCPv6 Options 37/38

Network Resiliency

Spanning Tree IEEE 802.1D STP, IEEE 802.1w RSTP, and IEEE 802.1s MSTP
STP protection Root Guard, BPDU Guard, and BPDU forwarding
Link aggregation IEEE 802.3ad LACP
LACP scalability Up to 16 link aggregation groups, with up to 8 member ports per group
Ethernet ring protection AirPro MRPP and ITU-T G.8032 ERPS
Link protection Loopback detection and Fast Link

Multicast Services

IPv4 multicast snooping IGMPv1/v2/v3 snooping
Fast membership processing IGMP fast leave
Multicast VLAN services Multicast VLAN Registration
IPv6 multicast snooping MLDv1/v2 snooping
Multicast source control IPv4/IPv6 DCSCM

Security and Access Control

ACL types IP ACL, MAC ACL, combined MAC-IP ACL, and user-defined ACL
Time-based policies Time-range ACL
ACL application ACL policies configurable on physical ports and VLANs
Port security Port security and MAC-address limits by port and VLAN
ARP protection Anti-ARP spoofing, anti-ARP scanning, and static/dynamic ARP binding
IPv6 protection Neighbor Discovery snooping
Dynamic ARP protection Dynamic ARP Inspection
Network access control IEEE 802.1X
AAA services Authentication, Authorization, and Accounting
Centralized authentication RADIUS and TACACS+

Quality of Service

Hardware queues 8 queues per port
Queue scheduling SP, WRR, SWRR, and WDRR
Traffic classification ACL, VLAN ID, IEEE 802.1p CoS, IP ToS, and DiffServ DSCP
Bandwidth management Configurable bandwidth control
Traffic policing Port- and VLAN-based traffic policing
Policing model Single-rate, single-bucket, two-color policing
Traffic redirection Flow redirect
Packet remarking DSCP, CoS/802.1p, IP precedence, and ToS remarking
Advanced classification IP fragmentation matching

Management and Operations

Management interfaces CLI, console, Telnet, and web-based management
Secure web management HTTPS/SSL over IPv4 and IPv6
Secure CLI management SSH over IPv4 and IPv6
Network management protocols SNMPv1, SNMPv2c, and SNMPv3
Monitoring and notifications SNMP traps and public/private MIB interfaces
Remote monitoring RMON groups 1, 2, 3, and 9
Diagnostics Ping and traceroute
Authentication RADIUS-based management authentication
Logging Syslog over IPv4 and IPv6
Time synchronization SNTP and NTP over IPv4 and IPv6
File transfer TFTP and FTP
Software resiliency Dual firmware images and multiple configuration files
Traffic mirroring Port mirroring, CPU mirroring, and RSPAN
Traffic visibility sFlow*
Ethernet OAM IEEE 802.3ah Ethernet in the First Mile OAM
Cable diagnostics Virtual Cable Test
Optical diagnostics Digital Diagnostic Monitoring
Link monitoring ULDP/UDLD-type unidirectional link detection
Neighbor discovery LLDP and LLDP-MED

Order Information

Product Description
AP-SG4500-52GT-4SFP L2 Gigabit Intelligent Ethernet Switch with 48 10/100/1000Base-T and 4 100/1000Base-SFP ports, 100-240VAC Power Input

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