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Ruby Tech announces new 24-Port GbE L2 Plus Managed PoE Switch with 4 SFP Dual Media

PSGS-2224L, a 24-Port GbE L2 Plus Managed PoE Switch with 4 SFP Dual Media,. The switch includes 20-Port 10/100/1000Mbps TP with PoE function and 4-Port Gigabit TP/SFP Fiber dual media management switch, the PSGS-2224L is an ideal solution for wireless AP, VoIP phones, security video cameras. It’s fully compliant with the standards of IEEE 802.3/u/x/z/ab/af.

The switch can be managed through RS-232 serial port, or through Ethernet port using CLI or Web-based management unit, associated with SNMP agent. With the SNMP agent, the network administrator can logon the switch to monitor, configure and control each port’s activity in a friendly way. The overall network management is enhanced and the network efficiency is also improved to accommodate high bandwidth applications. In addition, the switch features comprehensive and useful functions such as QoS (Quality of Service), Spanning Tree, VLAN, Port Trunking, Bandwidth Control, Port Security, SNMP/RMON, IGMP Snooping capability via the intelligent software. The switch also supports includes ACL, IP-MAC-Port Binding and DHCP Snooping capability for security purpose. It is suitable for both metro-LAN and office applications.



PoE Save Your Power Infrastructure Cost

24-Port allow power (185W) to be supplied to end devices, such as Wireless Access Points or VoIP Phones, directly through the existing LAN cables, eliminating costs for additional AC wiring and reducing installation cost. It frees your wireless AP deployment from restriction due to power outlet location. By supplying the power end-span, you can centralize power distribution and backup without the need to increase infrastructure.

QoS with Four Priority Queues

The QoS(Quality Of Service) feature provides four internal queues to support four different classifications of traffic. High priority packet streams experience less delay inside the switch, which supports lower latency for certain delay-sensitive traffic. The swith classify the packet as one of the four priorities according to 802.1p priority tag, DiffServ and/or IP TOS. The QoS operate at full wire speed. The actual scheduling at each egress port can be based upon a strict priority, weighted round robin or a mix of both.

Port Mirroring

This mechanism helps track network errors or abnormal packet transmission without interrupting the flow of data. Allow ingress traffic to be monitored by a single port that is defined as mirror capture port. The mirror capture port can be any 10/100 port, 10/100/1000 port. Mirroring multiple ports is possible but can create congestion at the mirror capture port.

Q-in-Q VLAN for performance & security (prevision, upgrade via FW)

The VLAN feature in the switch offers the benefits of both security and performance. VLAN is used to isolate traffic between different users and thus provides better security. Limiting the broadcast traffic to within the same VLAN broadcast domain also enhances performance. Q-in-Q, the use of double VLAN tags is an efficient method for enabling Subscriber Aggregation. This is very useful in the MAN.

Isolated Group, provides protection for certain ports

The isolated group feature allows certain ports to be designated as protected. All other ports are non-isolated. Traffic between isolated group members is blocked. Traffic can only be sent from isolated group to non-isolated group.

Mac-based 802.3ad LACP with automatic link fail-over

Dynamic fail-over means packets will not get assigned to any trunk member port that has failed. If one of the ports were to fail, traffic will automatically get distributed to the remaining active ports.

802.1d Compatible & 802.1w Rapid Spanning Tree

For mission critical environments with multiple switches supporting STP, you can configure the switches with a redundant backup bridge path, so transmission and reception of packets can be guaranteed in event of any fail-over switch on the network.

4 dual media ports for flexible fiber connection

4-Port 21,22,23,24 dual media ports are provided for flexible fiber connection. You can select to install optional transceiver modules in these slots for short, medium or long distance fiber backbone attachment. Use of the SFP will disable their corresponding built-in 10/100/1000Base-T connections.

Broadcast/Multicast/unknown-unicast Storm Control

To limit too many broadcast/multicast/unknown-unicast flooding in the network, broadcast/multicast storm control is used to restrict excess traffic. Threshold values are available to control the rate limit for each port. Packets are discarded if the count exceeds the configured upper threshold.

802.1x Access Control Improve Network Security

802.1x features enable user authentication for each network access attempt. Port security features allow you to limit the number of MAC addresses per port in order to control the number of stations for each port. Static MAC addresses can be defined for each port to ensure only registered machines are allowed to access. By enabling both of these features, you can establish an access mechanism based on user and machine identities, as well as control the number of access stations.

IP-MAC-Port Binding

The IP network layer uses a four-byte address. The Ethernet link layer uses a six-byte MAC address. Binding these two address types together allows the transmission of data between the layers. The primary purpose of IP-MAC binding is to restrict the access to a switch to a number of authorized users. Only the authorized client can access the Switch’s port by checking the pair of IP-MAC Addresses and port number with the pre-configured database. If an unauthorized user tries to access an IP-MAC binding enabled port, the system will block the access by dropping its packet.

Access Control List (ACL)

The ACLs are divided into EtherTypes. IPv4, ARP protocol, MAC and VLAN parameters etc. Here we will just go over the standard and extended access lists for TCP/IP. As you create ACEs for ingress classification, you can assign a policy for each port, the policy number is 1-8, however, each policy can be applied to any port. This makes it very easy to determine what type of ACL policy you will be working with.

SSL and SSH for secure Management (prevision, upgrade via FW)

Secure Sockets Layer (SSL) supports the encryption for all HTTP traffic, allowing secure access to the browser-based management GUI in the switch. And Secure Shell (SSH) which supports the encryption for all transmitted data for secure, remote command-line interface (CLI) access over IP networks.

TACACS+ for Management Authentication (prevision, upgrade via FW)

The switch supports the TACACS+ authentication for secure switch CLI Logon. It provides more secure authentication for management.



n        Standard Compliance             

n           IEEE 802.3 10Base-T Ethernet(twisted-pair copper)

n           IEEE 802.3u 100Base-TX Ethernet(twisted-pair copper)

n           IEEE 802.3ab 1000Base-T Ethernet(twisted-pair copper)

n           IEEE 802.3z 1000Base-SX/LX Ethernet

n           IEEE 802.3x Flow Control capability

n           IEEE 802.1q VLAN

n           IEEE 802.1p

n           IEEE 802.3af PoE

n        RoHS Compliance

n        Subscriber Interface

n         24 Gigabit Ethernet ports with 4 SFP Dual Media

n         Auto-negotiation

n         Auto-MDIX

n         Back pressure flow control for half duplex

n         Flow control for full duplex.

n         Connector: 20 RJ-45 and 4 RJ-45/SFP Dual Media

n        Performance

n         Switching capacity:

n           24 Gigabit Ethernet ports with non-blocking wise speed performance

n           8 K MAC addresses

n           Supports Jumbo frame support, up to 9K

n           Unknown Unicast/Broadcast/Multicast Storm Suppression

n           Port Mirroring

n         VLAN

n           Port-base VLAN

n           IEEE802.1q tag-base VLAN, up to 4k active VLANs

n           Q-in-Q is an efficient method for enabling Subscriber Aggregation

n           Multicast Vlan management

n         VSM (Virtual Stacking Management)

n           Up to 16 switches can be managed via Single IP limited to any specific Ruby-Tech models

n           Virtual stacking, no extra stacking hardware is required

n           Distributed stacking, no physical central wiring closet is needed

n         Qos

n           Supports QCL for Layer 4 TCP/UDP Port and ToS Classification

n           Supports 802.1p QoS with four level priority queue

n           Supports priority in a Q-in-Q tag

n         Bandwidth Control

n           Supports bandwidth rating per port ingress and egress rate limit 500Kbps~1000Mbps with 1Kbps

n         Protocol

n         LACP

n           Port trunking with 12 trunking group

n           Up to 16 ports for each group

n         GVRP/GARP

n           802.1q with GVRP/ GARP

n           Multicastingppression.ort.el priority queue

n           Supports IGMP snooping including active and passive mode

n         STP/RSTP/MSTP

n           802.1d/1w/1s

n         PoE Specification

n        24 IEEE802.3af PoE PSE ports

n        Endpoint with 48VDC power through RJ-45 pin 1, 2, 3, 6.

n        PoE-PSE activity LED indicator

n        185 watts of total power (up to 15.4 watts for 12 ports, or up to 7.7 watts for 24 ports)

n        Auto detect powered device and consumption levels

n        Supports per port power consumption monitoring

n        Smart feature for PD on/off, PD detection, power level, PD status and power feeding priority

n        Circuit protection to prevent power interference between ports

n        Supports per port PoE State setting

n        Supports per port power priority setting

n        Network Security

n        802.1x access control for port based and MAC based authentication

n        Management access policy control

n        Access Control List

n        IP-MAC-Port binding

n        DHCP relay agent(prevision, upgrade via FW)

n        SSL/ SSH for Management (prevision, upgrade via FW)

n        TACACS+ for Management Authentication (prevision, upgrade via FW)

n        Snmpv1,v2c Network Management



   Interface MIB

   Statistics Group 1

   Address Translation MIB

   History Group 2


   Alarm Group 3


   Event Group 9


RFC 1493 Bridge MIB


RFC 1643 Ethernet MIB


Enterprise MIB



Pricing and Availability


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About Ruby Tech Corp.


With more than 20 years of experience in R&D of networking products, Ruby Tech is committed t providing the most advanced and cost-effective products to its customers. What can best benefit its customers is what the company aims at and devotes to.

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