{"product_id":"1771-ogd-allen-bradley-plc-5-digital-output-module","title":"1771-OGD Allen-Bradley PLC-5 Digital Output Module","description":"\u003ch2\u003eAllen-Bradley 1771-OGD PLC 5 TTL Digital DC Output Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1771-OGD\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1771-OGD\u003c\/strong\u003e Digital DC Output Module, operates as a dedicated hardware component for TTL signal output execution within PLC-5 I\/O chassis platforms. The module provides 16 TTL DC output channels and requires chassis backplane power plus an external 5 VDC supply for signal transmission to compatible TTL input devices.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1771-OGD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley \/ Rockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.85 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eBackplane current 230 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Line\u003c\/td\u003e\n\u003ctd\u003ePLC-5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eDigital DC Output Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Outputs\u003c\/td\u003e\n\u003ctd\u003e16 Outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Category\u003c\/td\u003e\n\u003ctd\u003e5 VDC TTL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Operating Voltage\u003c\/td\u003e\n\u003ctd\u003e5.0-5.3 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Continuous Current Per Output\u003c\/td\u003e\n\u003ctd\u003e0.20 A sink, 0.001 A source\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Power Requirement\u003c\/td\u003e\n\u003ctd\u003e5 VDC external supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring Arm Compatibility\u003c\/td\u003e\n\u003ctd\u003e1771-WH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003eRack Mountable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Delay (Off)\u003c\/td\u003e\n\u003ctd\u003eAC typical 45 (+\/- 15) ms; DC typical 50 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Rating\u003c\/td\u003e\n\u003ctd\u003e0.5 A, 250 V normal blow fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtective Coating\u003c\/td\u003e\n\u003ctd\u003eConformal Coat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEtherNet\/IP and PLC-5 I\/O Signal Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe 1771-OGD operates as a PLC-5 digital output interface with TTL-level switching capability. The module uses the PLC-5 chassis backplane for internal operation and an external 5 VDC source for field-side TTL signal delivery. The output stage supports sink-type current operation and interfaces directly with TTL-compatible input devices.\u003c\/p\u003e\n\u003cp\u003eThe module is installed through the 1771 rack architecture and follows PLC-5 backplane communication behavior. Proper ESD protection is required during handling and installation to prevent semiconductor output degradation.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What type of signals does the 1771-OGD module provide?\u003cbr\u003eA: The 1771-OGD provides 16 TTL digital DC output channels operating in the 5 VDC voltage category.\u003c\/p\u003e\n\u003cp\u003eQ: Does the module require an external power source?\u003cbr\u003eA: Yes. The module requires chassis backplane power and an external 5 VDC supply for TTL output signal transmission.\u003c\/p\u003e\n\u003cp\u003eQ: What is the maximum output current capability per channel?\u003cbr\u003eA: Each output supports a maximum continuous current of 0.20 A in sink operation and 0.001 A in source operation.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1771-OGD module only in compatible PLC-5 I\/O chassis positions with correct rack addressing configuration. Verify that the chassis backplane connection is fully seated before applying power.\u003c\/p\u003e\n\u003cp\u003eUse the 1771-WH wiring arm for field connections and maintain separation between TTL signal wiring and high-voltage or high-noise conductors. Connect cable shields according to site grounding standards to reduce electromagnetic interference.\u003c\/p\u003e\n\u003cp\u003eBefore handling the module, apply ESD control procedures including grounded work surfaces and personnel grounding equipment. Confirm external 5 VDC supply polarity and voltage level before connecting TTL field devices.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43668071612506,"sku":"1771-OGD","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1771-OGD2.jpg?v=1784258626","url":"https:\/\/www.plcmasters.com\/products\/1771-ogd-allen-bradley-plc-5-digital-output-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}