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48-Port 10/100TX + 2-Port Gigabit + 2-Port 1000X SFP Managed Switch


  • Overview
  • A few years ago, PLANET developed the FGSW-4840S, the best solution for a cost-effective, high-density network application. To further enhance the solution with a more robust Layer 2 management function, PLANET has released a brand-new version of the FGSW-4840S. The brand-new FGSW-4840S is definitely more secure in that it allows the remote system to maintain or configure under security management interfaces.

    High-Density, Full-Functioned, Layer 2 Managed Switch for Enterprise and Campus Networking
    PLANET FGSW-4840S is a 48-Port 10/100Mbps Fast Ethernet Switch with 2-Port Gigabit and 2-Port Gigabit SFP interfaces, which comes with a high-performance switch architecture, capable of providing non-blocking 17.6Gbps switch fabric and wire-speed throughput at 13Mpps. Its four built-in GbE uplink ports also offer incredible extensibility, flexibility and connectivity to the core switch or servers. The powerful features of QoS and network security offered by the FGSW-4840S enable the switch to perform effective data traffic control for ISP and enterprise VoIP, video streaming and multicast applications. It is ideal for the remote access layer of campus or enterprise networks and the aggregation layer of IP metropolitan networks.

    Robust Layer 2 Feature
    The FGSW-4840S can be programmed for advanced switch management functions such as port mirror, port security, port isolation and loopback detection. It also features the dynamic port link aggregation (Static Trunk and LACP), 802.1Q VLAN, Spanning Tree protocol (STP), Rapid Spanning Tree protocol (RSTP) and Multiple Spanning Tree protocol (MSTP), Static / Dynamic / Filtering MAC address, IGMP Snooping, Multicast IP and Multicast Filter. With DHCP filtering, via aggregation of supporting ports, the FGSW-4840S allows the operation of a high-speed trunk to combine with multiple ports. It enables a maximum of up to 6 groups of 4 ports for trunk and supports fail-over as well.

    Enhanced Security
    The FGSW-4840S offers comprehensive Layer 2 to Layer 4 Access Control List (ACL) for enforcing security to the edge. It can be used to restrict network access by denying packets based on source and destination IP address.

    Efficient Traffic Control
    The FGSW-4840S is loaded with robust QoS features and powerful traffic management to enhance services to business-class data, voice, and video solutions. The functionality includes broadcast / multicast / unicast storm control, per port bandwidth control, 802.1p / CoS / IP DSCP QoS priority and remarking. It guarantees the best performance at VoIP and video stream transmission, and empowers the enterprises to take full advantages of the limited network resources.

    Enhanced and Secure Management
    For efficient management, the FGSW-4840S is equipped with, Web, Telnet and SNMP management interfaces. With the built-in Web-based management interface, the FGSW-4840S offers an easy-to-use, platform-independent management and configuration facility. By supporting the standard Simple Network Management Protocol (SNMP), the switch can be managed via any standard management software. For text-based management, the switch can be accessed via Telnet. Moreover, the FGSW-4840S offers secure remote management by supporting HTTPS and SNMPv3 connections which encrypt the packet content at each session.

    Flexible Extension Solution
    The two mini-GBIC slots built in the FGSW-4840S are compatible with the 1000Base-SX/LX SFP (Small Form-factor Pluggable) fiber transceiver to uplink to the backbone switch and monitoring center in long distance. The distance can be extended from 550 meters (multi-mode fiber) to 10/20/30/40/50/70/120 kilometers (single-mode fiber or WDM fiber). They are well suited for applications within the enterprise data centers and distributions.

  • Applications
  • Extension Department / Workgroup Switch
    With 48 10/100Mbps ports and 2 10/100/1000Base-T ports, the FGSW-4840S connects up to 50 workstations in Ethernet environment. The two SFP Mini-GBIC interfaces can be uplinked to a department backbone; moreover, the FGSW-4840S provides a 17.6 Gigabit per second switch fabric and is able to provide high bandwidth for backbone connection.
    Enterprise Security and QoS Edge Switch
    Its MAC/IP/Protocol Access Control list and Port Security limit the number of MAC addresses to be passed through one specific port. IGMP snooping and QoS functions further improve the efficiency of the network and protect the network clients.
    MTU Switch
    In an MTU/MDU application, the advanced functionality of the FGSW-4840S eliminates the traditional issues associated with the use of Ethernet. Users can be segregated by advanced VLAN functionality to enhance security and bandwidth managed with tiered bandwidth provision and control through configurable upstream/downstream restrictions. These coupled with the flexible Mini-GBIC 1000Base-SX/LX module options make the FGSW-4840S to be one of the best and most cost-effective switch solutions for multi-tenant service providers.
  • Key Features
  • Physical Port

    • 48-port 10/100Base-TX Fast Ethernet RJ45 copper, auto MDI / MDIX
    • 2-port 10/100/1000Base-T Gigabit Ethernet RJ45 copper, auto MDI / MDIX
    • 2 1000Base-X mini-GBIC/SFP slots
    • Reset button for system factory default

    Layer 2 Features

    • Prevents packet loss with back pressure (half-duplex) and IEEE 802.3x pause frame flow control (full-duplex)
    • High-performance Store and Forward architecture, and runt/CRC filtering eliminates erroneous packets to optimize the network bandwidth
    • Supports VLAN
    • – IEEE 802.1Q tagged VLAN, up to 512 VLAN groups, out of 4094 VLAN IDs
      – Management VLAN
    • Supports Spanning Tree Protocol
    • – STP (Spanning Tree Protocol)
      – RSTP (Rapid Spanning Tree Protocol)
      – MSTP (Multiple Spanning Tree Protocol)
      – Loop Guard, Root Guard, TC, BPDU Guard, STP BPDU Guard, BPDU Filtering
    • Supports Link Aggregation
    • – IEEE 802.3ad Link Aggregation Control Protocol (LACP)
      – Cisco ether-channel (Static Trunk)
      – Maximum 6 trunk groups, up to 4 ports per trunk group
    • Provides port mirror (many-to-1)

    Quality of Service

    • Ingress / Egress Rate Limit per port bandwidth control
    • Storm Control support
    • – Broadcast / Unknown Unicast / Unknown Multicast
    • Traffic classification
    • – IEEE 802.1p CoS
      – DSCP / ToS priority
    • Strict priority, Weighted Round Robin (WRR) and Equal CoS policies
    • Voice VLAN


    • IGMP Snooping v1, v2 and v3
    • Multicast IP Table / Static Multicast IP
    • Multicast Filter


    • L2 / L3 / L4 Access Control List
    • MAC Security
    • Static MAC
      MAC Filtering
    • Port Security for Source MAC address entries filtering
    • Port Isolation, loopback detection
    • DHCP Filtering


    • Switch Management Interface
    • – Web switch management
      – Telnet Command Line Interface
      – SNMP v1, v2c and v3
      – SSL v2, v3 / SSH v1,v2 secure access
      – IP / MAC / Port-based Web access control
    • Static, DHCP and BooTP for IP address assignment
    • System Maintenance
    • – Firmware upload / download via HTTP
      – Configuration upload / download through HTTP
      – Hardware reset button for system reset to factory default
      – System CPU / Memory status monitor
    • System Time Setting
    • – Manual Setting
      – Network Time Protocol
      – PC clock synchronization
    • Daylight Saving Time Setting
    • SNMP trap for interface Link Up and Link Down notification
    • System Local Log / remote log / backup log
    • Four RMON groups (history, statistics, alarms and events)
    • Virtual Cable Test / Loop Back Test

  • Specifications
  • Hardware Specifications
    Hardware Version 3
    Copper Ports 48 x 10/100Base-TX RJ45 auto-MDI/MDI-X port
    Copper Ports 2 x 10/100/1000Base-TX RJ45 auto-MDI/MDI-X port
    SFP/mini-GBIC Slots 2 1000Base-X SFP interfaces
    Switch Architecture Store-and-Forward
    Switch Fabric 17.6Gbps / non-blocking
    Switch Throughput@64 bytes 13Mpps @64 bytes
    MAC Address Table 8K entries
    Flow Control IEEE 802.3x pause frame for full-duplex
    Back pressure for half-duplex
    Maximum Transmit Unit 9216bytes
    Reset Button > 5 sec: Factory default
    LED System:
       Power (Green)
       SYS (Green)
    10/100TX RJ45 Interfaces (Port 1 to Port 48):
       100 LNK / ACT (Green), 10 LNK/ACT (Orange)
    10/100/1000T RJ45 Interfaces (Port 49 to Port 50):
       1000 LNK / ACT (Green), 10/100 LNK/ACT (Orange)
    1000Mbps SFP Interfaces (Port 51 to Port 52):
       1000 LNK / ACT (Green)
    Power Requirements 100~240V AC, 50/60Hz, 0.4A
    Power Consumption / Dissipation Max.17.3 watts / 59BTU
    Dimensions (W x D x H) 440 x 180 x 44 mm (1U height)
    Weight 2.5kg
    Enclosure Metal
    Layer 2 Functions
    Port Mirroring TX / RX
    Many-to-1 monitor
    Port Security up to 64 MAC Address per port
    Port Isolation Support
    Loopback Detection Support
    Link Aggregation IEEE 802.3ad LACP and static trunk supports 6 groups of 4-port trunk.
    VLAN 802.1Q tagged-based VLAN, up to 512 VLAN groups, out of 4094 VLAN IDs
    Management VLAN
    Spanning Tree Protocol STP / RSTP / MSTP
    Multicast IGMP (v1/v2/v3) Snooping
    Multicast IP
    Multicast Filter
    Access Control List L2 / L3 / L4 Access Control List
    QoS 4 Priority Queues
    Traffic classification:
     - IEEE 802.1p CoS
     - DSCP / ToS priority
    Strict priority, Weighted Round Robin (WRR) and Equal CoS policies
    Ingress / Egress Rate Limit per port bandwidth control
    Storm Control support:
     - Broadcast / Unknown Unicast / Unknown Multicast
    Voice VLAN
    Virtual Cable Test Support
    Loopback Test Support
    Management Functions
    Basic Management Interfaces Web browser / Telnet / SNMP v1, v2c, v3 / SSL v2, v3 / SSH v1,v2
    Firmware upgrade by HTTP protocol through Ethernet network
    Configuration Backup / Restore by HTTP protocol through Ethernet network
    Secure Management Interfaces HTTPs, SNMP v3
    Web Access Control IP / MAC / Port-based Web access control
    System IP Address Assignment Static, DHCP and BooTP
    System Log System local log / remote log / backup log
    System Time Setting Manual Setting, Network Time Protocol, PC clock synchronization
    Daylight Saving Time Support
    SNMP RMON RFC 2819 RMON (1, 2, 3, 9)
    SNMP Trap Interface Link Up and Link Down notification
    Standards Conformance
    Regulation Compliance FCC Part 15 Class A, CE
    Standards Compliance IEEE 802.3 10Base-T
    IEEE 802.3u 100Base-TX
    IEEE 802.3z Gigabit SX/LX
    IEEE 802.3ab Gigabit 1000Base-T
    IEEE 802.3x Flow Control and Back pressure
    IEEE 802.3ad Port Trunk with LACP
    IEEE 802.1D Spanning Tree protocol
    IEEE 802.1w Rapid Spanning Tree protocol
    IEEE 802.1s Multiple Spanning Tree protocol
    IEEE 802.1p Class of Service
    IEEE 802.1Q VLAN Tagging
    RFC 768 UDP
    RFC 791 IP
    RFC 792 ICMP
    RFC 2068 HTTP
    RFC 1112 IGMP version 1
    RFC 2236 IGMP version 2
    RFC 3376 IGMP version 3
    Operating Temperature: 0 ~ 50 degrees C
    Relative Humidity: 5 ~ 95% (non-condensing)
    Storage Temperature: -10 ~ 70 degrees C
    Relative Humidity: 5 ~ 95% (non-condensing)
  • Downloads

  • Datasheet

    Date Version Description Download
    2015-06-05 3.0 FGSW-4840S

    Quick Guide

    Date Version Description Download
    2014-09-03 3.0 Release for hardware veraion 3.0.

    User’s Manual

    Date Version Description Download
    2014-10-21 3.0 Initial release for FGSW-2840 and FGSW-4840Sv3.

    Ordering Information
    FGSW-4840S 48-Port 10/100TX + 2-Port Gigabit + 2-Port 1000X SFP Managed Switch