Allen Bradley 1794-TB37DS Flex I/O Terminal Docking Unit
Allen Bradley 1794-TB37DS Flex I/O Terminal Docking Unit
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Brand:Allen Bradley PLC Item No.:1794-TB37DS Product Origin:USA Product Dimensions:94 x 94 x 69 mm Product Weight:0.2 kg Payment:T/T, Western Union, Credit Card Goods_stock:15 Shipping Port:Xiamen, China Lead Time:1-3 Days Condition:Brand New And Original Warranty:1 Year Certificate:COO
The Allen-Bradley 1794-TB37DS Flex I/O Terminal Docking Unit is a high-density wiring interface component used in distributed industrial automation systems. It provides a 37-pin D-shell connection point for Flex I/O modules, enabling compact and organized signal termination.
This design allows I/O modules to be inserted and removed without disturbing field wiring, improving maintenance efficiency and reducing downtime. It is especially useful in applications requiring large numbers of analog and digital signals in a compact footprint.
The 1794-TB37DS is commonly used in complex industrial systems where high channel density, flexibility, and reliable signal interfacing are essential.
Technical Specifications
Parameter
Specification
Product Model
1794-TB37DS
Product Type
Flex I/O Terminal Base / Docking Unit
Brand
Allen-Bradley
System Platform
Flex I/O
Connector Type
37-pin D-shell
Function
Wiring and signal interface
Module Compatibility
Analog and digital Flex I/O modules
Mounting Type
DIN rail
Application
Distributed industrial automation
Dimensions
94 × 94 × 69 mm
Weight
0.2 kg (0.44 lb)
Industrial Applications
The Allen-Bradley 1794-TB37DS is a Flex I/O terminal base / docking unit designed to provide a 37-pin D-shell wiring interface for Flex I/O modules in distributed automation systems. It is used where high-density signal termination and modular I/O expansion are required.
Typical applications include:
PLC-based distributed I/O systems
Industrial automation control panels
Process control systems
Manufacturing production lines
Packaging and material handling systems
Remote I/O installations
Machine control systems
High-channel-count signal termination applications
Product Advantages
37-pin D-shell high-density terminal design
Supports both analog and digital Flex I/O modules
Modular plug-in architecture for easy maintenance
Enables fast module replacement without rewiring
Reduces cabinet wiring complexity
DIN rail mounting for easy installation
Stable electrical interface for distributed I/O systems
Suitable for mixed-signal applications
Technical FAQs
1. What is the main function of this unit?
It provides the wiring and docking interface for Flex I/O modules using a 37-pin D-shell connection.
2. Does it process signals?
No, it only provides electrical connection between field wiring and I/O modules.
3. What system is it used in?
It is part of the Allen-Bradley Flex I/O distributed I/O platform.
4. What types of modules does it support?
It supports both analog and digital Flex I/O modules depending on configuration.
5. What does “37-pin D-shell” mean?
It refers to the high-density connector style used for field wiring termination.
6. Can modules be replaced without rewiring?
Yes, field wiring remains on the base while modules can be swapped.
7. How is it installed?
It mounts on a DIN rail as part of a modular Flex I/O assembly.
8. Why is a terminal base important?
It provides structured wiring termination and backplane connectivity.
9. What industries use it?
Manufacturing, oil & gas, automotive, packaging, and process industries.
10. Is it reusable?
Yes, it remains installed while modules are replaced.
