Description

Product Overview     JetNet ***8G 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 **2.*1 a/b/g/n Access Points. All of the 8, *6 or *4 Fast Ethernet PoE injector ports of the switches can deliver *5.4W by IEEE **2.3af or *0W by the latest High Power PoE IEEE **2.3at 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 MSRTM network redundancy technology, the switches can aggregate up to *2 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 ***8G series provides *2.8G backplane with the integtrated non-blocking switching function. JetNet ***8G 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 ***8G series supports dual *8VDC power inputs and provides alarm relay output signaling function. For high voltage requiring applications the PoE switch provides extra *0~**4VAC or **7~**0VDC power supply capability. With the advanced Layer2 management features including IGMP Query/Snooping, DHCP, **5 VLAN, QoS, LACP, LPLD, etc. and the corrosion resistant robust design, JetNet ***8G 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 ***3, 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 **2.3af PoE standard with *5.4 w power budget already satisfies the power needs of most applications, such as **2.*1 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 *5.4w power. The JetNet ***8G comes with the new PSE solution, compliant with both IEEE **2.3af and IEEE **2.3at high power PoE standards. All the 8 or *6 or *4 PoE ports support IEEE **2.3at PoE plus standard and can deliver *0 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 **2.3af, IEEE **2.3at *-event, IEEE **2.3at LLDP, and non-standard type. To be compatible with different PDs, JetNet ***8G series is the world’s first rackmount High Power PoE switch, designed with 4 poweringmodes, including IEEE **2.3af mode, IEEE **2.3at *-event mode, IEEE **2.3at 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 **2.3at LLDP PoE JetNet ***8G series implements the *-event and Link Layer Discovery Protocol (LLDP) PoE into the system for efficient power budget negotiation between PSE and PD devices. The LLDP packet provides smart power budget control behavior to fulfill the needs of higher end setups requiring exact high power delivery. By using the ongoing dynamic re-negotiation function of the IEEE**2.3at LLDP PoE, the JetNet ***8G series can perform more intelligently by dynamically reallocating power to the PDs. Reliable Power Feeding Mechanisms The JetNet ***8G series is offered with dual *8VDC 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 ***8G 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 *4 *0/**0 Mbps ports and 4 RJ**5/SFP combo ports JetNet ***8G 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**5 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 *4 to ***8 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 ***8G 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 The JetNet ***8G series supports the new generation ring technology – MSRTM which includes various new technologies for redundancy applications and structures of different networks. The PoE switch allows to aggregate up to *4 Rapid super rings, including *2 Fast Ethernet plus 2 gigabit Ethernet Rings. With the MSRTM technology, a node can be configured to multiple rings with the failover time in as little as 5ms and zero-second of restoration time. LPLD for Smart Powered Device Alive-Check
JetNet ***8G 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 ***8G supports topology discovery or LLDP (IEEE **2.1AB 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 ***8G 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 ***8G provides various software features for ensuring high-quality performance, bandwidth aggregation and efficient video stream transmission in industrial surveillance networks.