Digital Output Module Source 32DO

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Basic Info

Model No.	CT-222H
Brand Name

Product description

CT-222H Digital Output Module Source 32DO

The CT-222H 32-channel digital output module by Sichuan Odot is a high-density, high-performance 24VDC source-type (PNP) output module, engineered to directly drive industrial loads such as relays, solenoid valves, pilot lights, and small contactors.?

It delivers 32 independent output channels, each capable of sourcing up to 0.5A, operating with high-level active logic (output = 24V when ON)—making it ideal for integration with European-standard PLCs and PNP-based control architectures. All channels are fully isolated from the internal backplane bus via high-speed opto-couplers, eliminating ground loops and protecting the control system from field-side transients.

Each channel features a dedicated LED indicator for real-time status visibility, accelerating commissioning and troubleshooting. The module integrates four-layer protection: overcurrent, short-circuit, overload, and thermal shutdown functions automatically disable affected channels during faults and support self-recovery—preventing cascading failures and ensuring system uptime. A robust 34-pin male connector enables high-density wiring and rapid field replacement in space-constrained control cabinets.?

Successfully deployed in German automotive assembly lines, North American beverage filling systems, and Southeast Asian smart warehouse sorters, the CT-222H seamlessly integrates with Siemens, Beckhoff, and other major automation platforms and complies with CE and industrial EMC standards.

?As a high-channel-count, high-drive, and highly protected 32-channel source-type digital output module, the CT-222H delivers reliable, maintenance-friendly actuation for global smart manufacturing applications.

Technical Parameters

General parameters
Power	Max.175mA @ 5.0Vdc
Isolation	I/O to internal bus: opto-couple isolation (3KVrms)
Field Power	Nominal:24Vdc, Range: 19.2-28.8Vdc
Wiring	34P male connector 2.54mm Pin header
Mounting Type	35mmDIN-Rail
Size	1151475mm
Environment Specification
Operational Temperature	-35~70℃
Operational Humidity	5%~95% RH(No Condensation)
Protection Class	IP20
Output Parameters
Channel Number	32 channels source type output
LED Indicator	32 channel output LED indicator
Rated Current	Typical value：300mA
Leakage Current	Max：10uA
Output Impedance	<200mΩ
Output Delay	OFF to ON: Max.100us? ? ? ON to OFF: Max.150us
Protection	Overtemperature shutdown: typical value is 135℃ Overcurrent protection: typical value 1.1A Short circuit protection support
Weight	65g

Application scenarios:

FQA

Q：What is the output type and logic level of the CT-222H module???

A：The CT-222H is a sourcing-type digital output module with 32 channels of 24VDC output, where the high level is active (output is ON when at 24V).

Q：Can this module directly drive field devices, and what protection mechanisms does it include???

A：Yes. The CT-222H can directly drive field devices such as relays and solenoid valves, and features overcurrent protection, thermal shutdown, short-circuit protection, and overload protection to ensure system reliability.

Q：How can I monitor the status of each output channel, and does the module use electrical isolation???

A：Each output channel has a dedicated LED indicator for real-time status monitoring. Additionally, opto-couplers provide electrical isolation between the internal bus and field outputs, enhancing noise immunity and safety.

Certifications & Quality Assurance:

ODOT products comply with international industrial standards, including CE and RoHS, and undergo strict quality control to ensure long-term reliable operation in industrial environments.