{"product_id":"bently-nevada-125744-02-3500-20-rack-interface-module","title":"Bently Nevada 125744-02 3500\/20 Rack Interface Module","description":"\u003ch2\u003eBently Nevada 125744-02 3500\/20 Rack Interface Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eBently Nevada 125744-02\u003c\/strong\u003e serves as the primary \u003cstrong\u003e3500\/20\u003c\/strong\u003e Rack Interface Module utilized to execute configuration data exchange and machinery information retrieval across Bently Nevada 3500 platforms. The device operates strictly inside slot 1 of the chassis to manage system-wide clock synchronization, event logging, and external communications engine connectivity without entering the critical protective monitoring loop.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe 125744-02 part number designates the physical Rack Interface Module (RIM) hardware assembly. When ordered as part of the complete 3500\/20-AXX-BXX matrix, the specific dash number dictates the backplane connection interface type, standard versus Triple Modular Redundant (TMR) processing algorithms, and modbus telemetry option cards fitted to the rear IO terminal space.\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\u003e125744-02\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\u003e0.55 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e24.3 cm x 4.6 cm x 15.5 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-30 to +65 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e5.0 W nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTariff Code\u003c\/td\u003e\n\u003ctd\u003e8537101190\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eRack Interface Module (RIM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlot Requirement\u003c\/td\u003e\n\u003ctd\u003eSlot 1 exclusively\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtocol Support\u003c\/td\u003e\n\u003ctd\u003eProprietary Bently Nevada Configuration Protocol\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eTriple Modular Redundant Monitor Channel Comparison\u003c\/h3\u003e\n\u003cp\u003eWhen initialized in a Triple Modular Redundant (TMR) system topology, the \u003cstrong\u003eBently Nevada 125744-02\u003c\/strong\u003e executes mathematical monitor channel comparison across adjacent processing nodes. The module pulls data structures from three redundant machinery protection cards to cross-validate voter integrity. If the internal logic tracks an operational deviation where one data stream exceeds the configured percentage window relative to the remaining two channels, the TMR hardware logs a fault condition inside the non-volatile System Event List while maintaining safe execution limits on downstream machinery trip relays.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does a failure or extraction of the 125744-02 RIM interrupt machinery trip protection?\u003c\/p\u003e\n\u003cp\u003eA: No. The RIM handles configuration, clock sync, and external communication links but remains completely outside the direct sensor-to-relay hardware protection path. Monitors continue to execute voting and alarm logic independently.\u003c\/p\u003e\n\u003cp\u003eQ: Can this module be installed in any available slot within the 3500 rack?\u003c\/p\u003e\n\u003cp\u003eA: No. The physical backplane trace architecture restricts the module to slot 1, directly adjacent to the power supply modules, to guarantee access to the system configuration bus lines.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Slot Restrictions:\u003c\/strong\u003e Verify that power is isolated from the 3500 rack prior to insertion. Slide the PWA directly into slot 1 using the top and bottom guide rails to prevent contact misalignment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding Requirements:\u003c\/strong\u003e Ensure the rack chassis is bonded to earth ground with a low-impedance copper conductor. All external communications processors (TDXnet, TDIX, DDIX) connected via the RIM must share an identical ground reference plane to eliminate common-mode noise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFirmware Verification:\u003c\/strong\u003e When replacing a 125744-02 assembly, the technician must check the current rack firmware version via the 3500 configuration software to ensure protocol compatibility with existing I\/O modules.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":44317847158883,"sku":null,"price":180.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/2775\/3315\/files\/125744-02-2.jpg?v=1783306741","url":"https:\/\/precisemodule.com\/products\/bently-nevada-125744-02-3500-20-rack-interface-module","provider":"Precise Module Ltd.","version":"1.0","type":"link"}