{"product_id":"allen-bradley-1771-og-ttl-output-module-165ma-at-5vdc-1771og","title":"Allen-Bradley 1771-OG TTL Output Module","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 1771-OG TTL Output Module is an eight‑channel TTL output card designed for use in a 1771 I\/O chassis to drive TTL loads from a PLC‑5 era backplane. It is powered through the 1771 I\/O backplane, drawing about 168 mA from the chassis supply, and delivers TTL-level outputs with a low threshold of 0 to 0.5 V and a high threshold of 2.7 to 5.25 V; each channel can sink up to 20 mA when low and source up to 1 mA when high. The module includes strap options to select POSITIVE or NEGATIVE logic, and the OG version features a 1 ms output filter for cleaner transitions. It occupies a single 1771 I\/O slot and is compatible with Allen‑Bradley Universal I\/O backplanes (1771‑A1B, 1771‑A2B, 1771‑A3B, 1771‑A4B), enabling straightforward integration with PLC‑5 systems that require TTL‑level digital outputs.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"New","offer_id":46244015374570,"sku":null,"price":60.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/8039\/3450\/files\/GTG-STOCK-079.png?v=1788727429","url":"https:\/\/gtghardware.com\/products\/allen-bradley-1771-og-ttl-output-module-165ma-at-5vdc-1771og","provider":"GTG Hardware","version":"1.0","type":"link"}