JetNet 5728G series is rackmount High-Port Density and Gigabit Managed Industrial Power over Ethernet switch, designed exclusively for highly critical PoE applications such as real time IP video surveillance with high resolution quality and the evolving wireless communication systems such as Wimax and 802.11 a/b/g/n Access Points. All of the 8, 16 or 24 Fast Ethernet PoE injector ports of the switches can deliver 15.4W by IEEE 802.3af or 30W by the latest High Power PoE IEEE 802.3at standard for upgrading the existing video network infrastructure to a powerful surveillance network.

The 4 Gigabit Ethernet ports provide high speed uplink to connect with higher level backbone switches. With the Korenix patented MSR^TM network redundancy technology, the switches can aggregate up to 12 fast ethernet rings and 2 gigabit rings while providing high quality data transmission with less than 5ms network recovery time. Furthermore, to ensure the traffic switching without data loss and blocking, the JetNet 5728G series provides 12.8G backplane with the integtrated non-blocking switching function.

JetNet 5728G incorporates LLDP function and perfectly works with the Korenix patented JetView Pro i²NMS for allowing administrators to automatically discover devices and efficiently manage the industrial network performance in large scale surveillance networks. To further ensure the non-stop power delivery, JetNet 5728G series supports dual 48VDC power inputs and provides alarm relay output signaling function. For high voltage requiring applications the PoE switch provides extra 90~264VAC or 127~370VDC power supply capability.

With the advanced Layer2 management features including IGMP Query/Snooping, DHCP, 255 VLAN, QoS, LACP, LPLD, etc. and the corrosion resistant robust design, JetNet 5728G highly outstands from other PoE switches and becomes the revolutionary solution for industrial surveillance applications.

Driving the IP Surveillance / Wireless PoE market

Since the ratification of the PoE standard in 2003, the Power over Ethernet technology becomes a trend; more devices adopt PD technology to obtain power through Ethernet cable eliminating the need of running separate power wirings to a remote device. In this context, the IEEE 802.3af PoE standard with 15.4 w power budget already satisfies the power needs of most applications, such as 802.11 a/b /g /n wireless AP for Hot-Spots, Airport Terminations etc. However, it cannot satisfy the power needs of high end demanding applications, such as WiMAX, IP DOM Cameras, requiring greater than the 15.4w power.

The JetNet 5728G comes with the new PSE solution, compliant with both IEEE 802.3af and IEEE 802.3at high power PoE standards. All the 8 or 16 or 24 PoE ports support IEEE 802.3at PoE plus standard and can deliver 30 watts power per port to outdoor PTZ IP cameras with direction control for cross–street monitoring, or WiMAX systems for internet access in train stations, airports or Hot-spots. The additional dual Gigabit ports provide more resilient and redundancy for users while forming a ring network and delivering increased bandwidth to the central network.

4 Powering Modes for Flexible Applications

In WiMax systems, Wireless APs, and high-end PoE applications, there are various types of PDs, for instance, IEEE 802.3af, IEEE 802.3at 2-event, IEEE 802.3at LLDP, and non-standard type. To be compatible with different PDs, JetNet 5728G series is the world’s first rackmount High Power PoE switch, designed with 4 poweringmodes, including IEEE 802.3af mode, IEEE 802.3at 2-event mode, IEEE 802.3at LLDP classification mode as well as forced powering mode to meet all of the PD types in the industry. As a result, they can be flexibly used to deliver power for different PoE-enabled devices in various applications.

Efficient Powering Mechanism- IEEE 802.3at LLDP PoE

Reliable Power Feeding Mechanisms

The JetNet 5728G series is offered with dual 48VDC power inputs for providing true network redundancy. An alarm relay output signals when a power input fails or other critical events occur. To ensure reliable power delivery, other advanced PoE power management features include individual port status monitoring, emergency power management (3 power supply indication inputs for quick shutdown of ports according to pre-defined priority table in cases where power supply failure occurs) and voltage/current monitoring and regulation. Power management allows the JetNet 5728G series to determine the exact power draw per port and to balance each port PoE power output accordingly. This, in turn, allows the switch to power higher and lower wattage devices according to user-definable parameters such as maximum available power, port priority (critical, high, low), and maximum allowable power per port.

High Port Density and Gigabit Capability
With up to 24 10/100 Mbps ports and 4 RJ-45/SFP combo ports JetNet 5728G series can connect to servers or Gigabit-speed backbone to provide quick and reliable delivery of large multimedia, image and video files in a non-stop network. The 4 shielded RJ-45 ports automatically negotiate to the highest speed, whereas the 4 hot-swappable SFP GBIC slots provide optional copper and fiber-based gigabit media connectivity for flexible bandwidth and longer distance transmission.

Up to 9KBytes Jumbo Frame
The typical Ethernet frame ranges from 64 to 1518 bytes, which is only sufficient for general usage. Contrary, in large scale surveillance networks, where users need to transmit large video streams, the files may be divided into many small size packets. While the transmitting speed becomes slow, 9KBytes Jumbo frame can solve the issue.

Korenix JetNet 5728G series supports Jumbo Frame to enhance the network communication while allowing users to easily transmit up to 9K Jumbo Frame packet.

Multiple Super Ring Aggregation Capability

LPLD for Smart Powered Device Alive-Check
JetNet 5728G series can be configured by Korenix patented PoE “Link Partner Line Detect” technology to guarantee the reliable connection of PD devices through easy monitoring of their real-time status. Once the keep-alive checking detects PD failure, it resets the PoE port to bring the PD back to a working state. This greatly enhances the system reliability while minimizing the maintenance time and cost.

Auto Topology Discovery & Efficient Management
JetNet 5728G supports topology discovery or LLDP (IEEE 802.1AB Link Layer Discovery Protocol) function that can help users to discover multi-vendor’s network devices on the same segment by an NMS system, which support LLDP function. With LLDP function, NMS can easily maintain the topology map, display port ID, port description, system description, VLAN ID, etc..

Once a link failure happens, the topology changed events are updated to the NMS to help users easily maintain the network system. Besides the SNMP and LLDP protocols, JetNet 5728G series efficiently works with the Korenix patented JetView Pro i2NMS, which in addition to the auto- topology discovery, also delivers MSRTM group management, group IP assignment, group firmware upgrade, group configuration file backup/ restore, SNMP MIB Browser /compiler, etc. The user-friendly software allows administrators to discover devices automatically and efficiently manage the performance of the large- scale industrial surveillance networks.

Outstanding Management and Enhanced Security
JetNet 5728G provides various software features for ensuring high-quality performance, bandwidth aggregation and efficient video stream transmission in industrial surveillance networks.

The network optimization can be achieved by the JetNet 5728G series’ DHCP option 82, QoS, 255 VLAN groups, IGMP Query/Snooping, GMRP, LACP link aggregation (802.3ad), ACL (Access Control List), PoE scheduling and many other advanced management and security features. System administrators can benefit from its rich interface for remotely managing and configuring devices via JetView, JetView Pro (Korenix’s advanced management utility), Web browser, SNMP, Telnet etc.

JetNet 5728G Appearance

Dimensions (Unit -mm)

* Specifications may change without prior notice