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RX3i MDL654 Digital I/O

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SKU 2174445  UPC 0618988409694




4 In Stock

✓  2 Year PDF Supply Warranty

*Need a Specific Revision?

Repair Service


5-10 Days

✓  2 Year PDF Supply Warranty

*What is Fast Repair?

Other Available Revisions for the IC694MDL654 IC694MDL654AIC694MDL654BIC694MDL654-LT

Common misspellings:
  • 1C694MDL654
  • IC69AMDL654
  • IC694MD1654
  • IC694MDL65A
  • IC694MDL654

Product Description

The IC694MDL654 is a 32-Point, 5/12 VDC (TTL), Positive/Negative Logic, Input module from the GE Fanuc RX3i Series. This module provides 32 discrete TTL voltage threshold input points.  The inputs are positive or negative logic inputs and will operate at levels up to 15V.  See specifications for this unit on IC694MDL654's website page.

Technical Specifications

Rated Voltage: 5 to 12 volts DC
# of Inputs: 32 (4 isolated groups of 8) 
Freq: N/A
Input Current: 3 mA @ 5VDC, 8.5 mA @ 12VDC
Input Voltage Range:   0 to +15VDC
Power Consumption:   195mA 5V bus, 96mA user 5V, 272mA user 12V



Technical Information






Rated Voltage,

Positive or Negative Logic

5 to12 volts DC

24 volts DC

48 volts DC

Input Voltage Range

0 to 15 volts DC

0 to 30 volts DC

0 to 60 volts DC

Input Current

(typical ON current at rated voltage)

3.0mA @ 5VDC

8.5mA @ 12VDC

7.0mA @ 24 VDC

1.7mA @ 48 VDC

Input Characteristics On–state Voltage Off–state Voltage On–state Current


Off–state Current


4.2 to 15 volts DC 0 to 2.6 volts DC

>2.5mA (minimum) guaranteed on

<1.2mA (maximum) guaranteed off


11.5 to 30 volts DC 0 to 5 volts DC

>3.2mA (minimum)

guaranteed on

<1.1mA (maximum) guaranteed off


34 to 60 volts DC

0 to 10 volts DC

>1.0mA (minimum) guaranteed on

<0.4mA (maximum) guaranteed off

On or Off response Time *

1ms maximum

2ms maximum

2ms maximum

* Within the module; does not include communications with CPU.

Inputs per Module

32 (four groups of eight inputs each)

98.4 feet (30 meters), maximum cable length for module IC694MDL654.

For modules IC694MDL654 and MDL655, the maximum number of inputs per group that can be on at the same time depends on the ambient

temperature as shown below. There is no thermal derating for module IC694MDL658.


Field to Backplane

(optical) and to frame ground



Group to Group


250 VAC continuous; 1500 VAC for one minute

For modules IC694MDL654 and IC694MDL655, if the 5V OUT / 24V OUT pin is used to connect to input devices in the field, the isolation is

50 VAC continuous; 500 VAC for one minute.

50 VAC continuous; 500 VAC for one minute

Internal Power Consumption

For MDL655, MDL658: 195mA (maximum) from +5V bus on backplane; (29mA + 0.5mA/point ON + 4.7mA/LED ON)

For MDL654: 440mA (maximum) from +5V bus on backplane (if module isolated +5V supply used to power inputs and all 32 inputs ON)

For MDL654: 96mA (typical) from user input supply @ 5VDC and 32 inputs ON);  272mA (typical) from user input supply @ 12VDC and 32 inputs ON)

Isolated +5V Supply

For MDL654:  +5 volts DC +/-5%

Current limit

For MDL654:  150mA (typical)



Troubleshooting IC694MDL654

Troubleshooting information is available on IC694MDL654's website page; it also includes a datasheet user-manual and a wiring diagram.


Repair your IC694MDL654

PDF Supply can repair your IC694MDL654 in 3-5 business days. And PDF Supply stands by all of its repairs with a 1 year customer satisfaction warranty.

Customer Questions and Answers

  • Question:  What is an IC694MDL654?  Answer:  The IC694MDL654 is a 32-Point, Positive/Negative Logic, 5/12 VDC (TTL), Input module from the GE Fanuc RX3i Series. 
  • Question:  What does IC694MDL654 provide?  Answer:  This module provides 32 discrete TTL voltage threhold input points in 4 isolated groups of 8 each.
  • Question:  How can the module be wired?  Answer:  This input module can be wired for either positive or negative logic.
  • Question:  With what are the input characteristics compatible?  Answer:  The input characteristics are compatible with a wide range of input devices, such as pushbuttons, limit switches, and electronic proximity switches. 
  • Question:  Is power available from this module?  Answer:  A single, regulated +5V supply is available through the I/O connectors on the front of the module.
  • Question:  32 green LEDs indicate what?  Answer:  32 green LEDs indicate the ON/OFF status of points 1 through 32. 
  • Question:  The blue bands on the label let you know what?  Answer:  They let you know that IC694MDL654 is a low-voltage module.
  • Question:  Into what slot can IC694MDL654 be installed?  Answer:  This module can be installed in any I/O slot of an RX3i system. 
  • Question:  What should I do if my IC694MDL654 is not working properly?  Answer:  Your IC694MDL654 may need repair

For more information on the IC694MDL654 32-Point, Positive/Negative Logic, 5/12 VDC (TTL), Input Module of the GE Fanuc RX3i Series, please see the Datasheet User-Manual.

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