Smar SW-700 module is a Fast Ethernet Switch that provides your LAN with 10 Base-T/100 Base-TX high-speed auto-sensing connectivity. Five ports, where one is dedicated for the Uplink will provide access for many devices and will help to eliminate traffic congestions that can't be well treated by Network Hubs.

The SW-700 is also a great choice when connecting different speed networks as Ethernet and Fast Ethernet and will also optimize finding the right path for same type of Ethernet.

LED indicators for link/activity, speed, full/half duplex and collision for each individual port and one for module power.

The SW-700 is a perfect fit for LC700 and DFI system. It can be powered by the Rack or by an external 24Vdc. Power supply redundancy circuit will automatically switch from the user preferred supply to the other one in case of failure.

Industrial design, no internal fans and low EMC makes it a great option for automation and process control applications.

Very easy to setup, just select the preferred power supply connect cables and you are ready to go!

Specifications for the SW-700:

The SW-700 has a frame buffer composed of 1M bits of built-in memory. The address look-up table for MAC addresses learning/searching consists of 1K direct-mapping tries.

The SW-700 uses Nway auto-negotiation to complete the UTP port connections of physical links which conform to IEEE 802.3u specifications. IEEE 802.3x full duplex flow control is supported. When operating in half duplex mode, a proprietary back-pressure algorithm is implemented to prevent traditional hub devices from partitioning due to excessive collisions.

The SW-700 supports non-blocking wire speed forwarding rates and special designs to resolve head-of-line blocking problems and channel-capture problems. A broadcast storm filtering function is also provided for abnormal broadcast traffic issues.

Auto-polarity is implemented to correct the detected reverse polarity of RXIP/RXIN signal pairs.

The SW-700 implements power saving mode on per port basis. A port automatically enters power saving mode 10 seconds after the cable is disconnected from it.
 

The SW-700 contains a full 1K of look-up table entries and uses a direct-mapping scheme to achieve address search and learning.

By extracting the least 10 bits of a destination MAC address to index the 1K-entry look-up table, the SW-700 can decide where the packet goes. If the searching result indexes to an empty entry, the packet is broadcast to all other ports. On the other hand, the SW-700 extracts the least 10 bits of a source MAC address to index the 1K-entry look-up table. If the result indexes to an empty entry, it records the source MAC address and related switching information. If the result leads to an occupied entry with different switching information, it updates the entry with the new information. This is referred to as 'learning'. The look-up engine will update time stamp information of an entry whenever the corresponding source MAC address appears. If the time information is not updated for a period of time, the entry will be removed, referred to as the aging process. The maximum aging time for the SW-700 is approximately 300 seconds, and the minimum aging time is approximately 200 seconds.