Product images are provided for reference and may not represent the exact model, configuration, or included components.

No Bots, Just Experts

Questions about this product? Free pre-sales support from a senior specialist — product questions, compatibility checks, BOM quotes, price confirmation — typically answered within one business day. Need camera placement or system design work? Engineering time is $175 per hour (qty 1 = 1 hour). Hardware buyers get up to one hour ($175) credited back on their order.

Description

Hubbell BR851341B Network Cable Splitter Adapter

Overview

The Hubbell BR851341B is a passive adapter designed to split pairs within a standard T568B wired RJ45 jack. This allows a single network cable run to support multiple connections by reallocating wire pairs. Specifically, it routes pairs 1, 2, and 3 to the first six positions of a jack, while pair 4 is directed to positions 4 and 5. This configuration is useful in specific legacy or specialized installations where a single cable must serve multiple low-bandwidth devices or signaling paths, such as extending basic connectivity or supporting specific sensor types over existing infrastructure.

Compatibility

This adapter is designed for use with standard T568B wired RJ45 jacks and patch panels. It is compatible with any network cable terminated to the T568B standard. Its function is purely physical pair splitting, making it universally compatible with any network device or system that utilizes T568B wiring for its input, provided the device's requirements align with the split pair configuration. It is not compatible with T567A wiring standards.

Installation Notes

Installation involves simply plugging the adapter into an existing T568B terminated RJ45 jack. Ensure the jack itself is properly wired to the T568B standard for correct pair allocation. The adapter does not require external power or configuration. Verify that the connected devices can operate with the split pair assignment before deployment to avoid connectivity issues.

What's in the Box

  • 1x Hubbell BR851341B Adapter
Specifications
Overview: Adapter Mod 851Y Splitting (Converts a T568B Wired RJ45 Jack by Splitting Pairs 1 2 & 3 to First 6-Positions of Jack & Pair 4 to Positions 4 and 5 of Jack)
Country of Origin: United States
UNSPSC: 24102001
Q&A
Reviews

Hubbell Adapt Split 568B JK to 2 JK PR1-3 PR4 - Narrow Profile Design for High Density - BR851341B

$49.45
$32.99

RELATED PRODUCTS

System Design, Deployment & Technical Support

Support services and planning resources for commercial surveillance, access control, and infrastructure deployments.

Fixed scope • Fixed price

System Design Assistance

  • Get help validating product compatibility
  • Coverage requirements
  • Storage planning and deployment architecture before you buy.
Request Design Help

Deployment & Configuration Support

  • Access fixed-scope support for rollout planning
  • User setup guidance
  • Migration and system standardization across single-site or multi-site deployments
View Support Services

Guides, Tools & Calculators

  • PoE requirements
  • Storage retention
  • Camera selection and deployment methodology
Open Technical Resources