Our advantage
Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
| Company Information | |||
| [email protected] | |||
| Mobile | +8615980777398 | ||
| +8615980777398 | |||
| 15980777398 |

The Allen Bradley 1734-CTM is a Common Terminal Module (CTM) used within distributed I/O systems. It is designed to provide a shared common connection point for field wiring, typically used with analog and specialty I/O modules in a POINT I/O assembly.
Unlike standard I/O modules, the 1734-CTM does not process signals or communicate directly with the controller. Its primary function is to simplify wiring by providing a centralized common terminal for multiple channels. This helps reduce wiring complexity and improves panel organization.
The module is installed directly onto the POINT I/O base and is commonly used in applications where multiple input or output channels share a common reference, such as analog signals or sensor networks.
The POINT I/O system is a modular distributed platform designed for flexible configuration, allowing various communication and I/O modules to be combined based on application requirements.
| Parameter | Specification |
|---|---|
| Model | 1734-CTM |
| Module Type | Common Terminal Module |
| Function | Shared common wiring terminal |
| Channels | Not applicable |
| Communication | None |
| Supply Voltage | Not required (passive module) |
| Backplane Connection | Mechanical only |
| Current Handling | Dependent on connected module |
| Wiring Type | Screw or spring terminal (depending on base) |
| Indicators | None |
| Operating Temperature | -20°C to +55°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 5–95% non-condensing |
| Mounting | Integrated with POINT I/O base |
| Enclosure | Open-style |
| Dimensions | Approx. 56 × 12 × 75.5 mm |
| Weight (kg) | Approx. 0.02–0.03 kg |
The 1734-CTM provides a centralized common terminal, allowing multiple I/O channels to share a single reference connection.
It simplifies wiring layouts by reducing the number of individual return or common wires required in the system.
The module is passive and does not require configuration, ensuring easy installation and operation.
Its compact design allows it to integrate seamlessly into existing POINT I/O assemblies without increasing system complexity.
The module improves wiring clarity and helps reduce installation errors in complex control panels.
The 1734-CTM is commonly used in applications where shared common connections are required:
It is particularly useful in systems where multiple signals share a common ground or return path.
Simplified Wiring
Reduces the number of wires required, making installations cleaner and more efficient.
Improved Panel Organization
Centralizes common connections, improving readability and maintenance.
Passive and Reliable
No active electronics, resulting in high reliability and long service life.
Easy Integration
Works seamlessly with compatible POINT I/O modules.
Compact Design
Occupies minimal space within the I/O assembly.
Reduced Installation Time
Streamlines wiring processes, saving time during setup.
| Model | Type | Channels / Ports | Voltage | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 1734-CTM | Common Terminal | N/A | Passive | 56×12×75.5 | 0.025 |
| 1734-ARM | Address Reserve | None | Passive | 56×12×75.5 | 0.02 |
| 1734-AENT | Ethernet Adapter | 1 Port | 24V DC | 133×56×79.8 | 0.30 |
| 1734-ADN | DeviceNet Adapter | Network Node | 24V DC | 63×107×148 | 0.30 |
| 1734-IB8 | Digital Input | 8 Inputs | 24V DC | 56×12×75.5 | 0.04 |
| 1734-OB8 | Digital Output | 8 Outputs | 24V DC | 56×12×75.5 | 0.04 |
| Model | Type | Key Function | Voltage | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 1769-L33ER | PLC Controller | Compact control processor | 24V DC | 118×87×87 | 0.50 |
| 1756-L81E | PLC Controller | High-performance processor | 24V DC | 175×90×140 | 0.65 |
| 1756-EN2T | Communication | Ethernet communication module | 24V DC | 145×35×140 | 0.30 |
| 1734-AENTR | Adapter | Ethernet I/O adapter | 24V DC | 56×12×75.5 | 0.04 |
| 5069-IB16 | Digital Input | 16-point digital input module | 24V DC | 138×42×95 | 0.25 |