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      FRN1420A

      MOSCAD Sixteen-Channel Digital Input Module
      Product image is representative; revision or series may vary. Contact us to request a specific version.

      Product Describe：

      Motorola FRN1420A is a 16-discrete-input MOSCAD module for dry-contact status acquisition in a compatible RTU.
      • Manufacturer part number
        FRN1420A
      • Shipping
        Swift global dispatch
      • Condition
        New, original product
      • Shipping size (est.)
        5cm x 17.5cm x 1cm
      • Country of Origin
        USA

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      What happens after you enquire

      • 0

        Review your reference

        Send the complete FRN1420A marking, installed revision, quantity and system configuration with your enquiry.
      • 1

        Confirm the offer

        Check that the quotation identifies FRN1420A, its offered condition, included parts and dispatch date.
      • 2

        Arrange dispatch

        Confirm the delivery details and receive tracking information when shipment is arranged.

      • Match the complete marking

        Include FRN1420A and every visible revision or serial identity in your enquiry. Keep the same complete reference on the quotation.

      • Check the offered item before ordering

        Request available label and connector photos. Have your maintenance team compare the offered FRN1420A with the installed equipment and applicable Motorola documentation.

      Technical specifications for FRN1420A

      • Manufacturer:
        Motorola
      • Product Category:
        General Automation
      • Spare Part Number:
        FRN1420A
      • Weight:
        0.54 kg
      • Tariff Code:
        8537101190
      • Exact catalog identity:
        16 discrete input module for MOSCAD
      • Input purpose:
        Dry-contact status sensing in 16DI family
      • Counter capability:
        Two dedicated high-speed inputs in 16DI family
      • Low-speed count:
        Application-controlled use of digital inputs in 16DI family
      • Event recording:
        Time tagging in 16DI family
      • Isolation:
        Optically isolated input paths in 16DI family
      • Module connection:
        Plugs into MOSCAD RTU motherboard
      • Field wiring:
        Removable front connectors in 16DI family
      • Status indication:
        Input and module diagnostics in 16DI family
      View as PDF Ask for Quote

      Information

      Overview Downloads Applications / Compatibility Product Precautions
      • FRN1420A adds field-contact state collection to a compatible Motorola MOSCAD RTU.
      RTU fit: match the A-suffix terminal layout
      Point schedule: preserve channel-to-contact map
      Event setup: verify application options
      Field proof: exercise every used input
      Motorola lists FRN1420A as a MOSCAD 16-discrete-input module. In the 16DI family, the RTU CPU reads contact states through the motherboard and the application program assigns meaning to each channel; the board itself is not a standalone controller.

      The related 16DI module design supports status indication, isolation and counter or time-tag functions under appropriate RTU configuration. The product sheet uses FRN1420 as the field-installed base code, so the A-suffix unit should be checked against its own marking and terminal layout before transferring any precise wiring or counter setup.

      For replacement, preserve the contact schedule, common wiring, event logic and RTU program. After fitting the module, prove each channel from the actual field device through the RTU point database and verify alarms or sequence-of-event records.
      Controller platform reference: Motorola MOSCAD 16DI RTU. Verify the A-suffix wiring.
      Technical downloads for Motorola FRN1420A: an Apter Power technical reference and a product-specific installation guide.
      The technical reference summarizes verified Motorola information for this model. The installation guide is prepared by Apter Power; confirm the installed revision and site requirements before work.
      RTU input role: FRN1420A is a MOSCAD module for discrete field-contact status, with point meaning assigned by the RTU application.

      Family boundary: Counter and time-tag functions belong to the related 16DI architecture; verify the installed A-suffix execution and software mapping before enabling them.
      Treat FRN1420A as an RTU I/O module with assigned field wiring and software meaning, not as an isolated stand-alone contact scanner.
      Power isolation

      De-energize the RTU and isolate field circuits before removing the module.

      Revision match

      Compare the A-suffix label, connector layout and motherboard position with the installed unit.

      Dry-contact boundary

      Verify each field device presents the specified contact interface rather than an unapproved powered signal.

      Common wiring

      Trace input commons and removable terminal blocks before moving conductors.

      Point database

      Preserve channel mapping, alarm rules and counter/time-tag options in the RTU program.

      Channel proof

      Exercise every used contact, observe local indication and verify the corresponding host point and event behavior.

      Alternative Names

      Motorola FRN1420A Motorola MOSCAD FRN1420A

      Technical notes

      A-suffix identity: FRN1420A is the exact catalog code. Confirm its physical revision and terminal arrangement before applying base FRN1420 wiring details.

      Signal type: The 16DI family senses contact closure states; it does not source an analog measurement or drive an output load.

      Technical reference: Motorola 2005 U.S. Price Book identifies FRN1420A; Motorola MOSCAD 16DI Digital Input Module specification, R3-11-83, describes the related 16DI architecture.

      FAQ View All FAQ

      • How should FRN1420A be matched to a MOSCAD RTU slot?
        Compare the exact A-suffix marking, motherboard position, terminal-block style and installed RTU configuration before moving the module.
      • What signal should be connected to FRN1420A inputs?
        The catalog identifies a discrete-input module and the related 16DI architecture uses dry-contact closures. Check the exact unit wiring before applying field power.
      • Why can an FRN1420A input LED change without a host alarm?
        The physical contact can be seen by the module while the RTU point map, scan or application logic is wrong. Trace the point from terminal through CPU to the alarm rule.
      • How should shared commons be handled when replacing FRN1420A?
        Document each conductor and common return by terminal; transfer the block only after the A-suffix connector assignment is verified.
      • When may FRN1420A be used for pulse counting?
        The related 16DI platform supports counter functions, but the exact A-suffix hardware and RTU program must be checked against pulse rate and channel wiring first.
      • How does time tagging on FRN1420A depend on the RTU?
        Event time meaning comes from the related 16DI module capability together with CPU and application setup. Confirm clock synchronization and recorded event sequence in the installed system.
      • How can a stuck input on FRN1420A be isolated?
        Test the field contact and common path, then compare local indication with the CPU point state to separate wiring, module and program faults.
      • What verifies FRN1420A after replacement?
        Operate each used field contact and confirm the matching RTU point, alarm or counter event; record the channel-by-channel result against the original schedule.
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