{"product_id":"honeywell-51400989-100-operator-keyboard","title":"Honeywell 51400989-100 Operator Keyboard","description":"\u003cp\u003eConfigured for operator interface interaction and command input in TDC 3000 Universal Station consoles, the \u003cstrong\u003eHoneywell 51400989-100\u003c\/strong\u003e (\u003cstrong\u003e51400989-100\u003c\/strong\u003e Operator Keyboard) provides direct physical\/electrical execution. The assembly converts physical keypresses into deterministic digital signals for alarm acknowledgment, loop manipulation, and process graphics navigation across distributed control system operator platforms.\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\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\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\u003e51400989-100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA \/ Standard Global Manufacturing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e8.62 kg (19.00 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard Universal Station Console Cutout Form Factor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eStandard Control Room Environment (0 deg C to +50 deg C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e5 VDC \/ 24 VDC Console Bus Power Draw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCategory\u003c\/td\u003e\n\u003ctd\u003eHMI \/ MMI \/ Operator Interface Keypad\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface Compatibility\u003c\/td\u003e\n\u003ctd\u003eHoneywell TDC 3000 \/ Universal Station\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eHeavy-Duty Industrial Console Enclosure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control and DCS Operator Interface Characteristics\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Loop Access Key Matrix\u003c\/strong\u003e: Dedicated tactile keys allow operators to instantly select 4-20 mA HART feedback loops, adjust setpoints, and switch control modes without menu navigation latencies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Channel Isolation\u003c\/strong\u003e: Internal keyboard interface circuitry maintains galvanic isolation from central console power lines to prevent static discharge from interfering with adjacent station electronics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCold Junction and Environmental Immunity\u003c\/strong\u003e: Industrial membrane and mechanical switch assemblies resist dust, moisture, and local temperature shifts within process control rooms.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the 51400989-100 keyboard be hot-swapped while the operator station is powered?\u003c\/p\u003e\n\u003cp\u003eA: Live replacement depends on the specific console serial interface controller; it is recommended to disconnect console power before replacing the keyboard to avoid signal bus lockup or port damage.\u003c\/p\u003e\n\u003cp\u003eQ: How does the keyboard communicate keypress events to the central TDC 3000 station node?\u003c\/p\u003e\n\u003cp\u003eA: Keypress events are encoded into serial data packets transmitted over a dedicated operator station bus interface, ensuring low latency for critical alarm responses.\u003c\/p\u003e\n\u003cp\u003eQ: What maintenance steps are recommended if specific operator key contacts become non-responsive?\u003c\/p\u003e\n\u003cp\u003eA: Ensure the interface ribbon cable is fully seated and clean of oxidation. If key contacts fail internally, the switch assembly or top membrane matrix must be replaced.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eConsole Cutout Preparation\u003c\/strong\u003e: Align the 51400989-100 housing with the opening on the Universal Station console desk. Ensure the mounting bezel sits flush against the console frame.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterface Cable Connection\u003c\/strong\u003e: Attach the multi-pin serial interface cable from the keyboard to the station controller card. Secure locking screws on the connector to prevent accidental disconnection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding Verification\u003c\/strong\u003e: Connect the keyboard chassis ground strap directly to the console frame earth ground stud to dissipate static charges accumulated during manual operator contact.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunctional Testing\u003c\/strong\u003e: Power up the station and execute built-in diagnostic routines to confirm that all alphanumeric, function, and dedicated loop keys register accurately in the station software.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":48698989740222,"sku":"51400989-100","price":172.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/screenshot_2026-08-11_16-01-32_0532c3c4-ebf0-447d-a0b6-59a566e3c0e0.png?v=1786436008","url":"https:\/\/www.autooiltech.com\/products\/honeywell-51400989-100-operator-keyboard","provider":"AutoOilTech Limited","version":"1.0","type":"link"}