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.
Black Box SP426A Data Isolator
Overview
The Black Box SP426A is a passive data isolator designed to protect sensitive network equipment from damaging power surges and transients that travel along data lines. This unit is critical for deployments where data cables might be exposed to lightning strikes or power fluctuations, such as connecting buildings or running cables outdoors. Its black, compact form factor allows for discreet installation within network racks or enclosures. The SP426A provides a vital layer of defense for your network infrastructure, preventing costly downtime and equipment failure by blocking common-mode voltage spikes.
Compatibility
This data isolator is compatible with standard Ethernet data transmission and can be used with virtually any network device that utilizes RJ45 connectors, including network cameras, NVRs, switches, and access control panels. It does not require external power and operates passively, making it universally applicable across various surveillance and IT systems. It is designed to protect the data integrity of devices connected via standard twisted-pair cabling.
Installation Notes
Installation involves simply inserting the SP426A inline between the network device and the incoming data cable. Ensure the cable is disconnected from the device before installation. Connect the incoming data line to one RJ45 port and the outgoing line to the other. The isolator is bidirectional and does not affect normal data flow under standard operating conditions. Verify that the connected equipment operates within its specified voltage and current limits after installation.
What's in the Box
- 1x Black Box SP426A Data Isolator
Black Box This Black BOX Data Isolator Stop Surges - SP426A
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 Black Box products? Shop the full Black Box 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