HIRSCHMANN OS20-002000T5T5T5 switch in stock
$173.52
HIRSCHMANN switching technology is a simplified, low-cost, high-performance, and port-dense switching product that embodies the complex switching technology of bridging at Layer 2 of the OSI reference model. Like bridges, switches make relatively simple forwarding decisions based on the MAC address in each packet. This forwarding decision generally does not consider other deeper information hidden within the packet.
Brand
HIRSCHMANN/Germany
Application Areas
Chemical, Petroleum, Mining, Road/Rail/Shipping, Comprehensive
A HIRSCHMANN switch is a device that performs information exchange functions in a communication system.
In computer network systems, the concept of switching represents an improvement over the shared working mode. A hub is a type of shared device. The hub itself cannot identify the destination address. When host A transmits data to host B within the same local area network, the data packet is transmitted in a broadcast manner on a network based on a hub architecture. Each terminal determines whether to receive the packet by verifying the address information in the packet header. In this working mode, only one set of data frames can be transmitted on the network at a time; if a collision occurs, it must be retried. This method is called shared network bandwidth.
Main Features
The main functions of a switch include physical addressing, network topology, error checking, frame sequencing, and flow control. Currently, switches also have some new functions, such as support for VLANs (Virtual Local Area Networks), support for link aggregation, and some even have firewall functionality. Switches
HIRSCHMANN Switches
Learning: Ethernet switches know the MAC address of each device connected to their port and store the mapping between the address and the corresponding port in a MAC address table cached by the switch.
Forwarding/Filtering: When a data frame's destination address is mapped in the MAC address table, it is forwarded to the port connecting to the destination node instead of all ports (unless the data frame is a broadcast/multicast frame, in which case it is forwarded to all ports).
Loop Elimination: When a switch includes a redundant loop, the Ethernet switch avoids loop creation through the Spanning Tree Protocol (STP), while allowing for backup paths.
In addition to connecting networks of the same type, switches can also interconnect different types of networks (such as Ethernet and Fast Ethernet). Many switches today offer high-speed ports supporting Fast Ethernet or FDDI, used to connect other switches in the network or to provide additional bandwidth for bandwidth-intensive critical servers.
Generally, each port on a switch is used to connect an independent network segment, but sometimes, to provide faster access speeds, important network computers can be directly connected to the switch's ports. This allows critical servers and important users to have faster access speeds and support larger data flows.
Finally, here's a brief summary of the basic functions of a switch:
1. Like a hub, a switch provides a large number of ports for cable connections, enabling star topology cabling.
2. Like repeaters, hubs, and bridges, a switch regenerates a distortion-free square electrical signal when forwarding frames.
3. Like a bridge, a switch uses the same forwarding or filtering logic on each port.
4. Like a bridge, a switch divides a local area network (LAN) into multiple collision domains, each with its own independent bandwidth, thus significantly increasing the LAN's bandwidth.
5. In addition to the functions of bridges, hubs, and repeaters, switches offer more advanced features such as Virtual LANs (VLANs) and higher performance. [1]
Basic Terminology (Folded)
HIRSCHMANN Switch
OS20-002000T5T5T5-TBBU999HHSE2SXX.X.XX
RS20-0400M2T1EDHEHC
RS20-0400M2T1EDHPHC
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RS20-0400S2T1SDHPHC
RS20-0400S2T1TDHEHC
RS20-0400S2T1TDHPHC
RS20-0400S2T1EDHEHC
RS20-0400S2T1EDHPHC
RS20-0400S2T1SDBEHC The company mainly deals with European and American brands and can source brands from any European country. For example, our key German brands include: BURKERT, DEMAG, HAWE, REXROTH, HYDAC, PILZ relays, FESTO, IFM sensors, E+H, HEIDENHAIN, P+F sensors, SICK, TURCK, and HIRSCHMANN industrial switches. German brands: Hengstler, Murr, Schmersal, Samson, EPRO (Emerson Group)
American brands: MOOG, ASCO, MAC, NUMATICS, PARKER, VICKERS, ROSS
British brands: Norgren
Italian brands: OMAL, ATOS, CAMOZZI, UNIVER, Camozzi


