Product Catalog   (435) 750-5999
X-15s Eight Digital Input Expansion Module
5 Year Warranty

X-15s Eight Digital Input expansion module can be monitored over the internet with an X-400 or X-600M controller.


The X-15s has eight optically-isolated digital inputs and is an expansion module for an X-400 or X-600M controller. The X-15s' isolated inputs are suitable for industrial environments and allow the grounding system of the monitored equipment and the low voltage circuits of the X-15s to be electrically separate.

Internally the X-15s has a co-processor which provides enhanced features including: pulse counting, pulse duration, accumulated pulse time and frequency measurements. All 8-inputs have separate measurements.

One or more X-15s expansion modules can be connected to an X-400 or X-600M controller with a ribbon cable. The ribbon cable provides both power and communications to the expansion modules.

Other expansion modules with different I/O combinations are also available.


  • 8 Optically-isolated digital inputs
  • Digital input functions:
    • Monitor State, Control Relays, Control Remote Relays, Count, Frequency, High Time, ON Time
  • Eight LEDs for inputs 1-8
  • Removable terminal connector
  • Powered through expansion bus - no separate power supply connections are required
  • Great for monitoring applications including:
    • Button/Switch Inputs
    • Security Sensors
    • Flow Meters
    • Machine Status
    • and much more...
RoHS compliant Made in the USA
CE listed “UL”

X-15s Part Numbers (Differences highlighted in green)

X-15s N/A Digital: 8 (3-26VDC) 9-28 VDC (supplied via the X-400 or X-600M controller, 24V recommended)

More Information:


Where to Buy

Click "Buy Online" to view part numbers and pricing. X-15s is available in the USA and internationally, and can be purchased either from us or an Authorized Distributor.

Related Products (More Features & Relays)

Relays and Inputs

X-17s (Used with X-400 or X-600M)

4 Relays, 4 Digital Inputs

Learn More

Task Builder


8 Optically-Isolated Digital Inputs

Learn More

8 Relays

X-12s (Used with X-400 or X-600M)

8 Relays

Learn More

Warning: May contain chemicals, including Nickel (metallic), known to the State of California to cause cancer and reproductive harm. -



Your cart is empty.

Your Cart is currently empty.

View Return Policy View Cart