{"product_id":"bircher-6120-521-545-rs232-interface-plc-board","title":"Bircher 6120.521.545 RS232 Interface PLC Board","description":"\u003cdiv\u003e\u003cp\u003ePRETEC 6120.521.545 and 990E.CIF.545 denote a four-port RS-232C interface board designed for PLC environments, providing four RS-232 serial channels that connect a host controller to multiple serial peripherals through a single module. Manufactured in Germany, the PRETEC interface is listed in distributor catalogs under the 6120.521.545 and 990E.CIF.545 designations, confirming its role as a PLC interface board rather than a separate communications card. The unit carries a compact, board‑level form factor suitable for installation in standard automation enclosures, with a reported item weight of 0.50 kg and a shipping weight of 1.50 kg for packaging and transit. In routine PLC configurations, this four-port RS-232C board enables serial data exchange with external devices—such as sensors, printers, or programming interfaces—without requiring additional adapters, helping to streamline wiring and reduce panel complexity.\u003c\/p\u003e\u003c\/div\u003e","brand":"BIRCHER","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":46279828701418,"sku":null,"price":1008.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/8039\/3450\/files\/GTG-STOCK-072.png?v=1788727429","url":"https:\/\/gtghardware.com\/products\/bircher-6120-521-545-rs232-interface-plc-board","provider":"GTG Hardware","version":"1.0","type":"link"}