Allen-Bradley 1786-TPS
Allen-Bradley 1786-TPS
Allen-Bradley 1786-TPS
Allen-Bradley 1786-TPS
Allen-Bradley 1786-TPS
Allen-Bradley 1786-TPS
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    Optimize your industrial communication setup with this genuine Allen-Bradley T-tap. Apter Power supplies the high-quality hardware required for robust and efficient network performance.

1786-TPS

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The Allen-Bradley 1786-TPS is a 1 m ControlNet coaxial straight T-tap used for reliable network connection and physical branching in industrial communication systems. It supports flexible mounting options and provides stable performance under demanding environmental and mechanical conditions.
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Technical specifications for 1786-TPS

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1786-TPS
  • Product Family:
    1786 Repeaters
  • Product Type:
    ControlNet 1 m Coaxial Straight T-Tap
  • Stock:
    3
  • Size:
    1 m
  • Temperature, operating:
    -25…70 °C (-13…158 °F)
  • Temperature, nonoperating:
    -40…85 °C (-40…185 °F)
  • Relative humidity:
    -40…85 °C (-40…185 °F)
  • Relative humidity:
    5…95% noncondensing
  • Shock, operating:
    30 g
  • Shock, nonoperating:
    50 g
  • Vibration:
    2.5 g @ 10…500 Hz
  • Weight:
    0.25 kg
  • Estimated shipping dimensions:
    24.5x30x2cm
  • Tariff Code:
    8542399000
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Connectivity Performance Use Cases

Features:

  • 1 m ControlNet coaxial T-tap enabling structured network branching and connectivity
  • Multiple mounting options including DIN rail, surface, and through-hole installation flexibility
  • High mechanical durability with strong shock, vibration, and environmental resistance for industrial use
The Allen-Bradley 1786-TPS is used in ControlNet network systems where structured coaxial connections are required to maintain stable communication paths. It provides a 1 m T-tap interface that supports organized branching of network cabling in industrial automation environments. This allows engineers to design scalable communication layouts across distributed control systems. The 1786-TPS supports integration into both compact control panels and larger industrial network architectures. Its role is essential in maintaining consistent ControlNet connectivity.

From an installation perspective, the 1786-TPS offers multiple mounting configurations to suit different industrial setups. It can be installed using DIN rail mounting with a universal bracket or mounted directly onto surfaces and fixtures. A transition plate option is available when horizontal DIN rail mounting is required, adding flexibility in panel design. Cable management accessories such as tie wraps and hook-and-loop straps help secure coaxial lines. The 1786-TPS therefore supports practical and adaptable installation practices in real-world environments.

In operational environments, the Allen-Bradley 1786-TPS maintains reliable performance under varying temperature, humidity, and mechanical stress conditions. It withstands vibration and shock levels typical in industrial machinery areas, ensuring stable physical positioning of network connections. Its environmental tolerance allows deployment in both controlled and demanding industrial spaces. The 1786-TPS contributes to maintaining communication integrity within ControlNet systems. This makes it suitable for continuous operation in automation networks requiring consistent signal distribution.

The 1786-TPS Allen-Bradley ControlNet 1 m Coaxial Straight T-Tap may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Allen-Bradley 1786-TPS ControlNet 1 m Coaxial Straight T-Tap Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Allen-Bradley 1786-TPS ControlNet 1 m Coaxial Straight T-Tap Specs

General

  • Manufacturer Allen-Bradley
  • Model 1786-TPS
  • Condition New Original ready stock
  • Product Family 1786-TPR,1786-TPYR,1786-TPYS
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Non-disconnectable physical access: Utilizing a T-shaped internal bridge structure, node devices can connect to or disconnect from the ControlNet trunkline without interrupting the physical electrical connections between other nodes in the network.
  • Straight physical connector: Employing a 180-degree straight BNC connector design, it provides the optimal bending radius for internal wiring in control cabinets with ample rack space and where field coaxial cables can be routed in a straight line.
  • Complete node impedance matching: The tap integrates a high-precision capacitance and inductance matching network, strictly limiting high-frequency signal attenuation and reflection from the trunk cable to within permissible limits.
  • Convenient flexible cable termination: Includes a 1-meter (3.3-foot) flexible coaxial drop-cable with a standard BNC male connector at the end, allowing direct screwing into the A/B ports of any ControlNet communication module.
  • Deterministic High-Frequency Data Transmission: The hardware is specifically designed for ControlNet networks, fully meeting the low-loss physical layer transmission requirements for 5 Mbps deterministic, repeatable data frames.
  • Dual-Path Redundancy Media Support: Each node can deploy two 1786-TPS taps, connected to Trunk A and Trunk B respectively, enabling millisecond-level redundancy switching at the underlying physical layer in conjunction with the communication module.
  • Support for Multi-Node, High-Capacity Topologies: In standard coaxial network segments without repeaters, it supports cascading up to 48 standard ControlNet physical nodes with taps of the same series.
  • Low Insertion Loss Attenuation Control: The taps undergo rigorous electrical attenuation testing, resulting in extremely low signal insertion loss for individual devices, ensuring a high signal-to-noise ratio (SNR) in long-distance backbone network deployments.
  • Large Distributed I/O Site Cascading: Used in large industrial areas such as automotive assembly lines and paper mills to introduce coaxial cables from the main trunk line into each remote Flex I/O or ControlLogix remote sub-base.
  • Multi-master redundant control network construction: In power plants, critical chemical plants, and other systems employing dual-machine hot standby (Redundancy) systems, this serves as a standard passive component, connecting the primary and backup controllers via a ControlNet bridge card.
  • Digital transformation of traditional control systems: When networking existing PLC-5 or SLC 500 systems via ControlNet, this serves as a standard physical tapping component, used for quickly extracting signal lines from the backbone cable.
  • Anti-interference networking in complex industrial workshops: In aluminum electrolysis and heavy machinery processing workshops with high-frequency, strong electromagnetic interference, this serves as the preferred physical connection for anti-interference data networks, in conjunction with highly shielded coaxial cables.
Description
The Allen-Bradley 1786-TPS is a ControlNet coaxial T-tap designed to provide a 1-meter connection point within ControlNet network architectures. It enables physical branching of coaxial communication lines, supporting structured network layouts in industrial automation systems. The 1786-TPS is commonly used to extend or connect ControlNet segments while maintaining stable signal integrity. Its design supports flexible installation methods depending on system layout and enclosure requirements.

Installation flexibility is a key aspect of the 1786-TPS, as it supports DIN rail mounting, surface or fixture mounting, and through-hole mounting options. When mounted on DIN rail, a universal mounting bracket is used to secure the tap, with optional use of a transition plate for horizontal installation. The Allen-Bradley 1786-TPS allows installers to adapt the mounting configuration using screws, tie wraps, and hook-and-loop straps for coax cable management. These installation choices make it suitable for diverse industrial panel environments.

The 1786-TPS operates reliably under a wide range of environmental conditions, with operating temperatures from -25 °C to 70 °C and nonoperating conditions from -40 °C to 85 °C. It supports 5–95% noncondensing relative humidity and is designed to withstand mechanical stress in industrial settings. These environmental tolerances ensure that the 1786-TPS maintains stable physical performance in both indoor control cabinets and harsher industrial installations. Its mechanical durability supports long-term use in continuous automation systems.

From a mechanical robustness perspective, the 1786-TPS withstands up to 30 g operating shock and 50 g nonoperating shock, along with vibration resistance of 2.5 g across 10–500 Hz. These characteristics ensure that the tap remains stable even in high-vibration machinery environments. Proper installation using DIN rail or surface mounting ensures secure physical positioning and minimizes cable stress. The Allen-Bradley 1786-TPS is therefore suited for environments where both mechanical strength and network reliability are required.

In practical use, the 1786-TPS supports structured ControlNet cabling installations where organized signal distribution is required. Its compact 1 m design allows precise placement within network layouts without excessive cable routing complexity. Installers can choose from multiple mounting configurations to match panel design and wiring constraints. The 1786-TPS helps maintain consistent communication infrastructure across distributed industrial control systems.
Revisions

Revision Part #

Also known as

1786-TPS Ser C
1786-TPS/C, Series C, Rev C
Alternative Names
1786TPS 17B6-TPS I786-TPS 17B6TPS 1786-TPR 1786-TPYR 1786-TPYS I7B6TPS
Technical notes
The Allen-Bradley 1786-TPS is a ControlNet straight T-tap featuring a 1-meter (3.3 ft) coaxial drop-cable designed to connect standard nodes to a 5 Mbps deterministic co-axial trunkline.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What function does Allen-Bradley 1786-TPS provide in ControlNet systems?
Allen-Bradley 1786-TPS provides a coaxial T-tap connection point for branching and organizing ControlNet network cabling.
How does Allen-Bradley 1786-TPS support different installation methods?
Allen-Bradley 1786-TPS supports DIN rail, surface, and through-hole mounting for flexible industrial installation.
Why does Allen-Bradley 1786-TPS require additional mounting accessories?
Allen-Bradley 1786-TPS may require DIN rails, screws, tie wraps, or hook-and-loop straps depending on installation method and cable management needs.
How does Allen-Bradley 1786-TPS perform in harsh environments?
Allen-Bradley 1786-TPS operates from -25 °C to 70 °C and withstands high shock and vibration levels in industrial conditions.