{"product_id":"bently-nevada-3500-20-02-01-00-135031-01-rack-interface-i-o-module","title":"Bently Nevada 3500\/20-02-01-00 135031-01 Rack Interface I\/O Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eBently Nevada 3500\/20-02-01-00 135031-01\u003c\/strong\u003e is a specialized rear-facing interface component that serves as the essential input\/output hub for the \u003cstrong\u003e3500 Series Machinery Protection System\u003c\/strong\u003e. This hardware combination pairs the \u003cstrong\u003e3500\/20\u003c\/strong\u003e Rack Interface Module (RIM) structure with the \u003cstrong\u003e135031-01\u003c\/strong\u003e backplane interface board, incorporating dual RS422\/RS485 serial communication ports and a dedicated RS232 configuration port. The assembly processes proprietary configuration protocols and machinery status data, enabling direct connectivity between monitoring racks, configuration software utilities, and plant host control networks. Beyond digital serial communications, the hardware integrates built-in \u003cstrong\u003esystem contacts\u003c\/strong\u003e including specialized hardware lines for remote rack resetting and a dedicated \u003cstrong\u003eNot-OK Relay\u003c\/strong\u003e configuration to transmit system status faults directly to supervisory automation systems without interrupting the critical machinery protection monitoring path.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eComplete integrated communication assembly combining the \u003cstrong\u003e3500\/20-02-01-00\u003c\/strong\u003e ordering configuration and the \u003cstrong\u003e135031-01\u003c\/strong\u003e serial interface board.\u003c\/li\u003e\n\u003cli\u003eDual independent serial ports configurable for RS422 or RS485 communication protocols via backplane hardware selection.\u003c\/li\u003e\n\u003cli\u003eDedicated front-panel and rear-board RS232 connections optimized for field diagnostics and rack configuration tools.\u003c\/li\u003e\n\u003cli\u003eOnboard dedicated hardware \u003cstrong\u003esystem contacts\u003c\/strong\u003e supporting remote Rack Reset commands and external Configuration Lock mechanisms.\u003c\/li\u003e\n\u003cli\u003eIntegrated \u003cstrong\u003eNot-OK Relay\u003c\/strong\u003e providing an automated hardware contact trip if a fault is detected in any monitoring channel.\u003c\/li\u003e\n\u003cli\u003eNon-interfering communication architecture ensuring data polling and configurations do not impact the baseline machinery protection path.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSerial Modbus or proprietary communication linking vibration monitoring racks to industrial PLCs and Distributed Control Systems (\u003cstrong\u003eDCS\u003c\/strong\u003e).\u003c\/li\u003e\n\u003cli\u003eRemote plant machinery asset tracking and centralized multi-rack configuration management.\u003c\/li\u003e\n\u003cli\u003eIntegrating hardware-level rack fault warnings with safety interlock loops via the system contact relays.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eOrdering Code \/ Part Number\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e3500\/20-AXX-BXX-CXX\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRack Interface Module complete ordering matrix.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eA: 02\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRack Interface I\/O Module with RS422\/RS485 Internal Terminations.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eB: 01\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCommunication Option: RS232\/RS422\/RS485 Serial Communications.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eC: 00\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAgency Approval Option: None.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e135031-01\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eI\/O Board Component:\u003c\/strong\u003e Rack Interface I\/O Module with RS422\/RS485 Internal Terminations.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e125744-02\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eMain Component:\u003c\/strong\u003e Rack Interface Module (Front-facing card).\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter Category\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification Details\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBently Nevada (Baker Hughes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCombined Designation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e3500\/20-02-01-00 135031-01\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModule Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRack Interface I\/O Module with Serial Communications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.3 Watts typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSerial Communication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRS422 and RS485 (Switch-selectable protocols)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConfiguration Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRS232 protocol via 9-pin D-sub connectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNot-OK Relay Contact\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 A @ 24 Vdc or 120 Vac, epoxy-sealed SPDT design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem Input Contacts\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRack Reset, Configuration Lock, and Trip Multiply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-30 degC to +65 degC (-22 degF to +150 degF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40 degC to +85 degC (-40 degF to +185 degF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelative Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e95%, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMain Card Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e241.3 mm x 24.4 mm x 241.8 mm (9.50 in x 0.96 in x 9.52 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eI\/O Card Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e241.3 mm x 24.4 mm x 99.1 mm (9.50 in x 0.96 in x 3.90 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMain Module Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.91 kg (2.0 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eI\/O Module Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.45 kg (1.0 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eConnections\/Interfaces\u003c\/h3\u003e\n\u003cp\u003eThe terminal interfaces and visual indicators on the \u003cstrong\u003e3500\/20-02-01-00 135031-01\u003c\/strong\u003e layout provide specific signaling and connection tracking:\u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003ePort \/ Terminal Block\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunction \/ Assignment\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOK LED\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFront panel indicator; remains lit green when the interface processes software tasks without internal fault.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTX\/RX LED\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFront panel indicator; flashes to show active digital data transmission over the backplane bus.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCONFIG Port\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFront-facing 9-pin RS232 port dedicated to connecting a field PC running configuration software.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHOST Port\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRear \u003cstrong\u003e135031-01\u003c\/strong\u003e 9-pin RS232 connection utilized for host data polling interfaces.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRACK RS422 \/ RS485\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInternal termination screw blocks for routing long-distance serial networks to the plant control room.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSYSTEM CONTACTS\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRear terminal block pins assigning lines for Rack Reset, Configuration Lock, and Not-OK relay outputs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlot Allocation:\u003c\/strong\u003e Mount the companion front card exclusively into Slot 1 of the chassis frame, which is located directly adjacent to the power supply bay, and attach the \u003cstrong\u003e135031-01\u003c\/strong\u003e interface module into the corresponding rear slot position.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtocol Selection:\u003c\/strong\u003e Set the internal hardware termination switches on the \u003cstrong\u003e135031-01\u003c\/strong\u003e circuit card to properly match the designated plant RS422 or RS485 balanced transmission network parameters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNetwork Termination:\u003c\/strong\u003e For end-of-line installations on a long-distance multi-drop serial bus, enable the onboard line-termination resistors to prevent signal reflections and data loss.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecurity Wiring:\u003c\/strong\u003e Connect a physical external keyswitch to the Configuration Lock contacts on the rear terminal block to protect the rack configuration from unauthorized or accidental software changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding Protocol:\u003c\/strong\u003e Ensure the serial data cable shields are securely terminated at the chassis ground block to prevent electromagnetic interference from distorting high-speed communication bursts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompliance and Certifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEMC Directives:\u003c\/strong\u003e European Community Directive 2014\/30\/EU.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEMC Standards:\u003c\/strong\u003e EN 61000-6-2 (Industrial Immunity), EN 61000-6-4 (Industrial Emissions).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical Safety:\u003c\/strong\u003e Low Voltage Directive 2014\/35\/EU, EN 61010-1 Standard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoHS Directive:\u003c\/strong\u003e 2011\/65\/EU European Compliance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNorth American Approvals:\u003c\/strong\u003e cNRTLus Class I, Division 2, Groups A, B, C, and D (T4 @ Ta = -20 degC to +65 degC).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eATEX\/IECEx Approvals:\u003c\/strong\u003e II 3 G Ex nA nC ic IIC T4 Gc \/ Ex ec nC ic IIC T4 Gc.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the functional connection between the 3500\/20-02-01-00 code and the 135031-01 part number?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003e3500\/20-02-01-00\u003c\/strong\u003e represents the exact multi-digit factory ordering structure which mandates serial communications and specific internal terminal layouts, while the \u003cstrong\u003e135031-01\u003c\/strong\u003e is the exact manufacturer manufacturing part number assigned to the physical rear I\/O circuit board delivered inside that combination.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I toggle the rear serial port network options between RS422 and RS485 protocols?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe selection between protocols requires adjusting the physical positioning of hardware micro-switches located directly on the \u003cstrong\u003e135031-01\u003c\/strong\u003e rear card assembly prior to powering the device.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill an absolute failure of this interface module interrupt the machinery protection trip loops?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, the module functions outside the primary, direct hardware monitoring path, meaning a complete loss of communication or power to this card has zero impact on the baseline asset trip loops or monitoring execution.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat happens if a module fault occurs anywhere across the 3500 rack chassis?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe integrated Not-OK Relay contact loop hosted on the backplane block immediately shifts its hardware switch state, providing an instant hardwired system alert to an external PLC or alarm panel.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":52666864075115,"sku":"135031-01","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/bently-nevada-3500-20-02-01-00-135031-01-rack-interface-i-o-module-jytao5rpj3n_3f8ea88d-edeb-4043-ac6e-7df04fa03052.jpg?v=1765449387","url":"https:\/\/www.plcprotech.com\/products\/bently-nevada-3500-20-02-01-00-135031-01-rack-interface-i-o-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}