{"product_id":"bently-nevada-136703-01-3500-50-i-o-modules","title":"Bently Nevada 136703-01 3500\/50 I\/O Modules","description":"\u003cp\u003eThe \u003cstrong\u003eBently Nevada 136703-01\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e3500\/50\u003c\/strong\u003e I\/O Module with Internal Barriers and Internal Termination, operates as a dedicated hardware component for processing tachometer and shaft speed signals within Bently Nevada 3500 Series Machinery Protection Systems.\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\u003e136703-01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eBently Nevada\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\u003e0.46 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e10.31 cm x 2.44 cm x 24.13 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-30 deg C to +65 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePowered via 3500 system rack backplane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eTachometer I\/O Module with Internal Barriers and Internal Termination\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Bandwidth\u003c\/td\u003e\n\u003ctd\u003e30 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEddy-Current Probe Scaling and Gap Voltage Validation\u003c\/h3\u003e\n\u003cp\u003eThe 136703-01 I\/O module conditions transducer signals originating from proximity probe systems across a 30 kHz signal bandwidth. Correct speed pulse acquisition and phase reference timing require precise eddy-current probe scaling and physical transducer gap verification. Verifying target gap voltage validation (-10 VDC targets) during baseline setup prevents pulse distortion, mitigating cross-talk suppression degradation across adjacent channel connections in high-density rack backplanes.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 136703-01 module require external zener barrier blocks for hazardous area transducer connections?\u003c\/p\u003e\n\u003cp\u003eA: No, the module integrates internal galvanically isolated barriers directly on the board, allowing direct field wiring termination without external barrier hardware.\u003c\/p\u003e\n\u003cp\u003eQ: Can this rear I\/O module be hot-swapped while the 3500 rack remains powered?\u003c\/p\u003e\n\u003cp\u003eA: Yes, rear I\/O modules in the 3500 system can be removed or inserted under backplane power, provided the associated main front module is temporarily disengaged or set to maintenance mode.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003ePower down the channel slot or confirm system maintenance overrides before installing the module into the rear slot of the 3500 rack chassis.\u003c\/li\u003e\n\u003cli\u003eAlign the board edges with the top and bottom card guides of the designated slot and slide the module inward until the backplane connectors seat completely.\u003c\/li\u003e\n\u003cli\u003eTighten the top and bottom captive screws by hand to secure the faceplate to the rack frame and ensure solid mechanical chassis grounding.\u003c\/li\u003e\n\u003cli\u003eWire field transducer leads directly to the internal termination screw blocks, taking care not to bridge adjacent intrinsically safe terminals.\u003c\/li\u003e\n\u003cli\u003eConnect cable shields to the dedicated rack ground bus bar to prevent high-frequency electro-magnetic interference from corrupting speed pulse edge detection.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":53211129807157,"sku":"3500\/50 136703-01","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/136703-01.png?v=1784860916","url":"https:\/\/www.5gplc.com\/products\/bently-nevada-136703-01-3500-50-i-o-modules","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}