Allen-Bradley 1794-TB37DS Flex I/O Terminal Base Unit

SKU: 1794-TB37DS
  • Manufacturer: Allen-Bradley

  • Product No.: 1794-TB37DS

  • Condition:In stock

  • Product Type: Terminal Bases

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 140g

  • Shipping port: Xiamen

  • Warranty: 12 months

The Allen-Bradley 1794-TB37DS, also cataloged as the 1794-TB37DS Terminal Base Unit, operates as a dedicated hardware component for field signal termination and module backplane interfacing within Allen-Bradley Flex I/O systems. The unit incorporates a 37-pin D-shell interface to connect pre-wired field cable assemblies directly to inserted 1794 I/O modules.

Hardware Specifications

Parameter Specification
Model 1794-TB37DS
Brand Allen-Bradley
Origin USA
Weight 0.30 lbs (0.14 kg)
Dimensions Standard Flex I/O Base Dimensions
Operating Temp 0 to 55 deg C
Power Consumption Passive Terminal Base Component
Interface Connector 37-pin D-shell female connector
Enclosure Rating IP20
Mounting Type TS35 DIN rail or panel mount
Product Category Terminal Base Unit / Panel Accessory

EtherNet/IP Deterministic Networks & Backplane Bus Velocity

The 1794-TB37DS terminal base connects inserted functional modules directly to the Flexbus backplane, facilitating high-velocity communication with EtherNet/IP adapters. Utilizing a 37-pin D-shell connection interface permits rapid field harness installation and eliminates individual point-to-point wiring errors. Internal signal traces are routed to maintain physical isolation and prevent cross-talk between backplane communication signals and field I/O lines.

Frequently Asked Questions

Q: What interface connector type is provided on the 1794-TB37DS terminal base?

A: The base unit features an integrated 37-pin D-shell connector designed for rapid mating with multi-conductor pre-wired cables.

Q: What ingress protection rating applies to the 1794-TB37DS base unit?

A: The chassis carries an IP20 open-style enclosure rating, requiring installation inside a suitable control cabinet.

Q: How is the 1794-TB37DS terminal base secured inside an instrument cabinet?

A: The unit mounts onto standard TS35 DIN rails or can be screwed directly to a cabinet panel plate.

Field Installation Guidelines

  1. Snap the 1794-TB37DS terminal base onto a grounded TS35 DIN rail or secure it to the enclosure backpanel using screws.
  2. Slide the unit laterally into adjacent terminal bases to ensure the Flexbus backplane connectors lock together completely.
  3. Plug the pre-wired 37-pin D-shell cable harness into the base interface and tighten the connector retention screws.
  4. Set the module mechanical keyswitch on the terminal base to the designated position required for the specific I/O card.
  5. Ensure the DIN rail or panel surface is grounded to provide electrostatic discharge protection across the I/O assembly.
Order and Warranty Information

Terms of Purchase and Returns

Detailed guidelines on minimum order quantity, delivery times, payment options, warranty, and return policies.

We gladly accept bulk orders, with a minimum order quantity of just one unit.

Upon request, we can provide all necessary documents, including Certificates of Origin/Conformance and other required export paperwork.

We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% payable before shipment. For RMB transfers, please contact us if you have an agent in China.

All new and original items come with a standard one-year warranty. For extended warranty options, feel free to contact us for pricing details.

We prioritize your satisfaction. If you need to return an item, it must be done within 30 days of purchase. The product must be unused, unopened, and in its original packaging, including all accessories. Refunds will be processed within 5-7 business days of receiving the return. Please note, shipping and handling charges are non-refundable.

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