48+4 10G Management Fiber Ethernet Switch  JHA-SW4804MG-52VS Product overview  JHA-SW4804MG-52VS is a BCM chip series standard switch. The modular design provides 48 10/100/1000 adaptive ports and 4 integrated terabyte optical ports, providing sufficient bandwidth for the data exchange between the aggregation and the core. Provide high capacity exchange capacity, perfect security control policy and CPU protect policy to improve fault tolerance, and ensure the stable operation of network and load balance of link. Meanwhile, it supports automatic DoS attack prevention and SNMP, IEEE 802.1, spanning tree, fast spanning tree protocol, link aggregation and other functions.  Product features  1、 Performance is remarkable 2、 176G backplane bandwidth 3、 Ø hardware routing, wire-speed layer 3 switching packet rate reached 131 MPPS 4、 Ø core can be deployed in the metropolitan area network, and provides a few last 1 km technology 5、 Ø/IEEE802.3 Ethernet packet size (64 bytes to 1522 bytes) 6、 Ø giant packets up to 9216 bytes   Provides defense against DOS, distributed denial of service, spoofing, and viruses Ø support IEEE802.1 x, provides user authentication based on port, mesh shield technology, safety control technology and strategy control list Ø limit the number of port maximum connection between a host and the Ethernet interface for multiple binding, increase bandwidth and system redundancy Ø powerful ACL, support L2 - L4 layer data filteringØ     Policy control list, flow regulation 8.Easy to use and maintain It can be managed by Web, SNMP and so on Ø support XModem protocol, can through the TFTP/ZMODEM software upgrades and the BootRom Ø support SFP +, as well as backward compatibility XFP, etc 9.Strong traffic and broadcast management Automatic detection and suppression of broadcast storm, support IGMP message detection, effectively limit broadcast message flooding Ø supports full-duplex mode and half duplex mode of flow control Ø support Ethernet interface in 1 m as the rate limiting step length Product technical parameters product model  48+4  10G Switch Basic characteristics  Fixed port 48 10/100/1000 adaptive ports and 4 teraflops The back of bandwidth 176Gbps Packet forwarding rate 131Mpps  processor  ARM® Cortex™-A9 Flash memory capacity 8MB memory capacity  256M MAC address table 16K The queue buffer 1.5MB Software specifications security feature ARP inspection DOS protection Port to protect IP source port protection VLAN Port based VLAN 802.1Q VLAN  address table Static MAC address table Dynamic MAC address table The storm control Radio inhibition Multicast inhibition DLF inhibition Inhibition rate traffic control Half duplex control based on back pressure Full duplex based on PAUSE frame port mirroring Support for port mirroring Port management General Settings The port statistical Configure port Port aggregation  quality of service IEEE 802.1Qau congestion mechanism 8 sending queue mappings for 802.1p for each port 8 priorities IP-based service Ping test DHCP detection  spanning tree MSTP(802.1s)、STP、RSTP  system management  Console TELNET  WEB remote upgrade Support version upgrade via web Support for local version upgrades external dimension  440mm × 205mm × 44mm Power supply features Ac 110-240v adaptive, 47-63hz, 1A/230V,  power ≥80W  indicator light Power indicator, system indicator, connect/send/receive indicator Ambient temperature/humidity 0 to 50 ℃, - 40-70 ℃ preservation, 0-90%, no condensation u  Product quality assurance and certification quality guarantee 3 Years  authentication  ROHS European Community (CE) Electromagnetic Compatibility Directive：This equipment has been tested and found to comply with the protection requirements of European Emission Standard EN55022/EN60555-2 and the Generic European Immunity Standard EN50082-1. EMC: EN55022(1988)/CISPR-22(1985)，class A EN60555-2(1995)，class A EN60555-3   IEC1000-4-2(1995)，4K V CD, 8KV, AD IEC1000-4-3(1995)，3V/m IEC1000-4-4(1995)，1KV – (power line), 0.5KV – (signal line) Federal Communications Commission (FCC) statement：This equipment has been tested and found to comply with the limits for a class A computing device pursuant to Subpart J of part 15 of FCC Rules, which are designed to provide reasonable protection against such interference when operated in a commercial environment. ♦   Product transportation and storage ♦ U transport: the packaging of this product is suitable for the transportation of cars, ships, planes and trains. During the transportation, it should be protected from sun, drenching and civilized loading and unloading. ♦ Storage: the product should be placed in the packaging box when not used. The temperature and humidity of the storage environment should meet the requirements of the product. There should be no corrosive objects in the warehouse and no strong mechanical vibration, impact and magnetic field action.