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FC-SDI-1648

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Honeywell FC-SDI-1648 is a 16-channel 48 V DC fail-to-safe digital input module for Honeywell Safety Manager.
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Technical specifications for FC-SDI-1648

  • Manufacturer:
    Honeywell
  • Part Number:
    FC-SDI-1648
  • Product Family:
    Honeywell FSC Series
  • Product Type:
    16-Channel 48 V DC Safe Digital Input Module
  • Stock:
    1
  • Safe input channels:
    16
  • Nominal field voltage:
    48 V DC
  • Maximum signal voltage:
    70 V DC
  • Typical input current:
    4 mA at 48 V DC
  • HIGH threshold:
    Greater than 30 V DC
  • LOW threshold:
    Less than 16 V DC and 1.1 mA
  • Typical input delay:
    10 ms
  • Construction:
    Conformal-coated FC version
  • Tariff Code:
    85389000
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Input Data Diagnostics Compatibility Installation Check

Features:

  • Sixteen fail-to-safe 48 V DC inputs
  • Defined HIGH and LOW thresholds
  • Protected 48 V diagnostic test output
FC-SDI-1648 brings sixteen 48 V DC field states into the safety application.

Threshold margin must include supply tolerance, contact resistance, conductor drop and leakage.

The input delay and application time belong in the final safety-response calculation.

The Honeywell FC-SDI-1648 16-Channel 48 V DC Safe Digital Input Module is available for quotation and technical support from Apter Power.
Verified resources for FC-SDI-1648:

Input Data:

  • Safe input channels: 16
  • Nominal field voltage: 48 V DC
  • Maximum signal voltage: 70 V DC
Use the documented FC-SDI-1648 limits when calculating the complete field circuit.

Diagnostics:

  • Logic-state and crosstalk self-tests
  • Protected 48 V test output
  • Typical 10 ms input delay
Resolve all FC-SDI-1648 channel, wiring and system diagnostics before release to operation.

Compatibility:

  • Maximum 70 V DC signal
  • Maximum 100 nF load capacitance
  • Key coding A13/C29
Match FC-SDI-1648 to the approved Safety Manager module, termination and field-device arrangement.

Installation Check:

  • Verify 48 V polarity and range
  • Prove HIGH and LOW thresholds
  • Confirm application mapping
Complete and record the end-to-end functional test after installing FC-SDI-1648.
Description
Honeywell FC-SDI-1648 16-Channel 48 V DC Safe Digital Input Module provides sixteen fail-to-safe 48 V DC digital input channels for Honeywell Safety Manager.

The module recognizes HIGH above 30 V and LOW below 16 V with less than 1.1 mA, with a typical 10 ms delay. Self-tests supervise logic states and crosstalk while a protected 48 V output supports diagnostic testing.

Match field supply, termination, key coding and redundant or non-redundant cabling to the approved design. Prove both logic states, the diagnostic path, application mapping and response time.
Alternative Names
FC-SDI-1648 FC SDI 1648 FCSDI1648 Honeywell FC-SDI-1648 Honeywell FC SDI 1648 Honeywell FCSDI1648 FC-SDI-1648 16-Channel 48 V DC Safe Digital Input Module Honeywell Safety Manager FC-SDI-1648
Technical notes
FC-SDI-1648 monitors sixteen 48 V DC inputs with defined HIGH and LOW thresholds. Verify the exact field interface and approved system configuration before commissioning.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What voltage is recognized as HIGH?
Honeywell documents HIGH above 30 V DC at the module input.
What defines a LOW state?
LOW is below 16 V DC with current below 1.1 mA.
How should the 10 ms delay be used?
Include it with field-device, application and output delays in the safety-response calculation.
Which hardware must be matched with FC-SDI-1648?
Verify Maximum 70 V DC signal, Maximum 100 nF load capacitance and the approved Safety Manager hardware list before installation.
Which diagnostics are important for FC-SDI-1648?
Check logic-state and crosstalk self-tests, protected 48 v test output, typical 10 ms input delay and clear every unexplained channel or system alarm.
Can another construction variant replace FC-SDI-1648?
Only after environmental construction, certifications, hardware revision and project approval have been confirmed.
What commissioning checks are required for FC-SDI-1648?
Perform these product-specific checks: verify 48 v polarity and range, prove high and low thresholds, confirm application mapping; document the final results.
What information is needed to quote FC-SDI-1648?
Provide the exact module model, hardware revision, connected field circuit, required construction, quantity and destination.