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A1SJ71LP21

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Refurbished

$1250

1 In Stock

✓  2 Year PDF Supply Warranty

The A1SJ71LP21 module is a Mitsubishi network module from the MELSEC-A series. It was designed for applications in a Mitsubishi MELSEC-A MELSECNET/10 network system. The A1SJ71LP21 network module can be used as a control station, normal station, or master station in a MELSECNET/10 network system. It uses optical fiber cables. The A1SJ71LP21 network module can be installed in an I/O slot in the main base unit or in an extension base unit in a MELSECNET/10 network system. The A1SJ71LP21 network module can support 8192 LX/LY link points, 8192 LB link points, and 8192 LW link points in a network. Its normal communication speed is 10 Mbps, but it can support a communication speed of 20 Mbps with multiple transmissions. The A1SJ71LP21 network module supports the frame synchronization method and the token ring communication method. It uses a duplex loop for its transmission channel. The A1SJ71LP21 network module can support an overall extension distance of 30 km. It can support a total of 255 networks which are PC-to-PC networks or remote I/O networks. It can also support up to 9 groups if the groups contain only PC-to-PC networks. The A1SJ71LP21 network module supports an NRZI coding system. This module occupies 32 I/O points when it is installed. The A1SJ71LP21 network module consumes 0.65 Amps of current at 5 Volts DC. It weighs about 0.33 kg. The A1SJ71LP21 network module has an error control system that supports retry options. This network module comes with several LED indicators on the front panel.

Technical Specifications for A1SJ71LP21

Product TypeNetwork module
CompatibilityMELSECNET/10 network systems
SeriesMELSEC-A series
Current consumption0.65A at 5V DC
Communication speed10 Mbps, 20 Mbps (multiple transmission)
Cable typeOptical fiber
Communication methodToken ring
Synchronization methodFrame synchronization
Overall extension distance30 km
Occupied I/O points32 points

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Rockwell Disclaimer: The product is used surplus. PDF Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because PDF Supply is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, PDF Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. PDF Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. PDF Supply also makes no representations as to your right to install any such firmware on the product. PDF Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.