HIRSCHMANN RS20-0400M2T1EDAPHC Switch

Brand

HIRSCHMANN/Germany

Application Areas

Chemical, Petroleum, Mining, Road/Rail/Shipping, Comprehensive

HIRSCHMANN switches, in computer network systems, introduced the concept of switching as an improvement to 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 LAN, 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 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.

Key Features of HIRSCHMANN Switches

The main functions of a switch include physical addressing, network topology, error checking, frame sequencing, and flow control. Currently, switches also have some new features, such as support for VLANs (Virtual Local Area Networks), support for link aggregation, and some even have firewall functionality.

Learning: Ethernet switches learn the MAC address of each device connected to their port and map these addresses to corresponding ports 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, not all ports (unless the 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 uses the Spanning Tree Protocol (STP) to prevent loops from forming while allowing for backup paths.

In addition to connecting networks of the same type, HIRSCHMANN 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 provide additional bandwidth to bandwidth-intensive critical servers.

A HIRSCHMANN switch is a device that performs information exchange in a communication system.

In computer network systems, the concept of switching represents an improvement over shared operating modes. A hub is a shared device. The hub itself cannot identify the destination address. When host A on the same local area network (LAN) transmits data to host B, the data packet is broadcast on a network with a hub architecture. Each terminal determines whether to receive the packet by verifying the address information in the packet header. In this 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.

The main functions of a HIRSCHMANN switch include physical addressing, network topology, error checking, frame sequencing, and flow control. Currently, switches also have newer features such as support for VLANs (Virtual Local Area Networks), link aggregation, and some even have firewall functionality.

Full-duplex on a HIRSCHMANN switch means that the switch can simultaneously send and receive data, like making a phone call where you can speak and hear the other person at the same time. Most current switches support full-duplex. The advantages of full-duplex are low latency and high speed.

Full-duplex operation of HIRSCHMANN switches means that the switch can simultaneously send and receive data, much like making a phone call where you can speak and hear the other person at the same time. Most current switches support full-duplex. The advantages of full-duplex are low latency and high speed.

When discussing full-duplex, we must mention its closely related concept: "half-duplex." Half-duplex means that only one action occurs at a time. A simple example is a narrow road where only one car can pass at a time. If two cars are traveling towards each other, only one can pass at a time, waiting for the other to pass. This example vividly illustrates the principle of half-duplex. Early walkie-talkies and early hubs were half-duplex products. With continuous technological advancements, half-duplex will gradually become obsolete.

Broadly speaking, network switches are divided into two types: wide area network (WAN) switches and local area network (LAN) switches. WAN switches are mainly used in the telecommunications field, providing a basic communication platform. Local area network (LAN) switches are used in local area networks (LANs) to connect terminal devices such as PCs and network printers. Based on transmission media and speed, they can be categorized as Ethernet switches, Fast Ethernet switches, Gigabit Ethernet switches, FDDI switches, ATM switches, and Token Ring switches. Based on application scale, they can be categorized as enterprise-level switches, departmental switches, and workgroup switches. The classification standards vary among manufacturers. Generally, enterprise-level switches are rack-mounted, departmental switches can be rack-mounted (with fewer slots) or fixed-configuration, and workgroup switches are fixed-configuration (with simpler functionality). Furthermore, in terms of application scale, as backbone switches, switches supporting over 500 data points in large enterprises are considered enterprise-level switches, those supporting under 300 data points in medium-sized enterprises are departmental switches, and those supporting under 100 data points are workgroup switches. This article refers to LAN switches.

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RS20-0800M4M4SDAPHC 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