Build Your Complete System
Manufacturer-verified compatible cameras, recorders, mounts, accessories, and licenses for this product. Adjust quantities and add the entire bundle to your cart in one click.
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.
Hubbell BR851D Network Adapter
Overview
The Hubbell BR851D is a passive adapter designed to split a single T568B wired RJ45 network drop into two separate 10/100BASE-T Ethernet connections. This device is useful in structured cabling deployments where a single network cable run needs to support two separate network devices, such as a VoIP phone and a PC, or two low-bandwidth devices, without running additional cable. It leverages existing cable infrastructure to provide dual connectivity from a single jack.
Compatibility
This adapter is specifically designed for T568B wiring schemes and supports standard 10/100BASE-T Ethernet speeds. It splits pairs 2 & 3 to one RJ45 jack and pairs 1 & 4 to the other RJ45 jack. It is compatible with any standard RJ45 jack wired to the T568B standard. It does not support Gigabit Ethernet (1000BASE-T) speeds due to the way it splits the conductor pairs.
Installation Notes
Installation involves simply plugging the BR851D into an existing T568B wired RJ45 jack and then plugging your network devices into the two output RJ45 ports. Ensure the source jack is wired correctly to T568B. This is a passive device and requires no external power. It is intended for indoor, controlled environments only.
What's in the Box
- 1x Hubbell BR851D T568B Splitting Adapter
Compare with similar
Hubbell Adapt Split 568B JK to 2 10BT JK - Narrow Profile Design for High Density Appli - BR851D
Build Your Complete System
Manufacturer-verified compatible cameras, recorders, mounts, accessories, and licenses for this product. Adjust quantities and add the entire bundle to your cart in one click.
Looking for more Hubbell products? Shop the full Hubbell catalog →
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.
Deployment & Configuration Support
- Access fixed-scope support for rollout planning
- User setup guidance
- Migration and system standardization across single-site or multi-site deployments
Guides, Tools & Calculators
- PoE requirements
- Storage retention
- Camera selection and deployment methodology