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All Products Vehicle Control Systems Core System Expansions
Vehicle Control Systems
Core System Expansions
top view image of Whelen CEM16 WeCanX® 16-Output Expansion Module
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CEM16 - WeCanX® 16-Output Expansion Module

overhead image showing circuit board detail for the Whelen CEM24 WeCanX® 24-Output Expansion Module, included as part of the WeCanX Push Bumper Kit
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CEM24 - WeCanX® 24-Output Expansion Module

front view image of Wheleln WeCanX® High Current Remote Expansion Module, 4-15 Amp Output (CEM4HC)
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CEM4HC - WeCanX® High Current Remote Expansion Module
front view image of Whelen WeCanX Traffic Advisor Remote Module (CTA)
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CTA - WeCanX Traffic Advisor Remote Module
top view image of Whelen CEM16 WeCanX® 16-Output Expansion Module
overhead image showing circuit board detail for the Whelen CEM24 WeCanX® 24-Output Expansion Module, included as part of the WeCanX Push Bumper Kit
front view image of Wheleln WeCanX® High Current Remote Expansion Module, 4-15 Amp Output (CEM4HC)
front view image of Whelen WeCanX Traffic Advisor Remote Module (CTA)
top view image of Whelen CEM16 WeCanX® 16-Output Expansion Module
overhead image showing circuit board detail for the Whelen CEM24 WeCanX® 24-Output Expansion Module, included as part of the WeCanX Push Bumper Kit
front view image of Wheleln WeCanX® High Current Remote Expansion Module, 4-15 Amp Output (CEM4HC)
front view image of Whelen WeCanX Traffic Advisor Remote Module (CTA)

CEM16 - WeCanX® 16-Output Expansion Module

CEM24 - WeCanX® 24-Output Expansion Module

CEM4HC - WeCanX® High Current Remote Expansion Module

CTA - WeCanX Traffic Advisor Remote Module
Vehicle Control Systems

Core System Expansions

Enhance the power and versatility of your Whelen Core® control system with durable and reliable WeCanX® Expansion Modules, built for law enforcement, fire, and utility vehicles. Available in 8-, 16-, and 24-output options, including Traffic Advisor™ and High-Current Remote variants, these modules easily extend your setup to accommodate any lighting or siren configuration while ensuring seamless integration.

Featuring built-in protections like short-circuit and over-temperature safeguards, fault diagnostics, low-power and cruise modes, and firmware updates through the Core controller, they support Dynamic Variable Intensity™ (DVI™) flash patterns for better visibility and safety. Core system expansions provide greater control, flexibility, and confidence on the road.
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Features
  • Flexible Expansion: Available in 8-, 16-, and 24-output options, including High-Current Remote and Traffic Advisor modules, to grow with your vehicle’s needs
  • Smart Protection: Built-in safeguards like short-circuit, over-temperature protection, and fault diagnostics ensure long-term reliability and simplified maintenance
  • Enhanced Safety: Supports Dynamic Variable Intensity (DVI) flash patterns for increased visibility and scene safety across law enforcement, fire, and utility/commercial fleets
Specifications
Please note: Not all specifications will apply to every model. Consult your sales representative to confirm specs.
Outputs/InputsCEM8: 8 Outputs, 4 Inputs
CEM16: 16 Outputs, 4 Inputs
CEM16D: 16 Outputs, 4 Inputs
CEM24: 24 Outputs
CEM4HC: 4 Outputs
CTA: 8 Outputs
Compatible Core SystemsCenCom Core®
Core-C®
Core-R®
Core-S®
Core-R® DOT
ControlWeCanX®
ConstructionCEM8, CEM16, CEM16D, CEM24: Fully Encapsulated from moisture, vibration, and corrosion resistance
Included HardwareScrews for mounting
CertificationsCEM8, CEM16, CEM24, CEM16D, CEM4HC: IP67
Warranty10-year
Please see our warranty statement for more information here.
VoltageCEM8, CEM16, CTA: 12.8 VDC
CEM16D, CEM24, CEM4HC: 10-30 VDC
AmpsCEM8, CEM16, CEM16D, CEM24: 2.5 amps per output
CEM4HC: 15 amps per output
CTA: 1 amp per output
Size

CEM8, CEM16, CEM16D:
Width: 6.66” (16.91 cm)
Height: 1.94” (4.92 cm)
Depth: 0.84” (21.33 mm)

CEM4HC:
Width: 5.19” (13.18 cm)
Height: 5.52” (14.02 cm)
Depth: 2.18” (5.53 cm)

CEM24:
Width: 6.5” (16.51 cm)
Height: 2.75” (6.98 cm)
Depth: 1.50” (3.81 cm)

CTA:
Width: 3.80” (9.65 cm)
Height: 2.90” (7.36 cm)
Depth: 0.82” (20.82 mm)

Dimensions
CEM4HC Core Expansion Dimensions
CEM16D Core Expansion Dimensions
CEM24 Core Expansion Dimensions
CTA Core Expansion Dimensions

Core System Expansions
CEM8
8 Output, 4 Input WeCanX® Expansion Module
Install Guide
CEM16
top view image of Whelen CEM16 WeCanX® 16-Output Expansion Module

CEM16 - WeCanX® 16-Output Expansion Module

16 Output, 4 Input WeCanX® Expansion Module
Install Guide
CEM16D
16 Output, 4 Input WeCanX® Expansion Module, 10-30 VDC
Install Guide
CEM24
overhead image showing circuit board detail for the Whelen CEM24 WeCanX® 24-Output Expansion Module, included as part of the WeCanX Push Bumper Kit

CEM24 - WeCanX® 24-Output Expansion Module

24 Output WeCanX® Expansion Module
Install Guide
CEM4HC
front view image of Wheleln WeCanX® High Current Remote Expansion Module, 4-15 Amp Output (CEM4HC)

CEM4HC - WeCanX® High Current Remote Expansion Module
WeCanX® High Current Remote Expansion Module, 4-15 Amp Output
Install Guide
CTA
front view image of Whelen WeCanX Traffic Advisor Remote Module (CTA)

CTA - WeCanX Traffic Advisor Remote Module
WeCanX® Traffic Advisor™ Remote Module, Traffic Advisor™ Purchased Separately
Install Guide
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