IBM 3299-003 8-Port Multiplexor RJ11 NFPA Type II 66X2766

IBM 3299-003 8-Port Multiplexor RJ11 NFPA Type II 66X2766

The IBM 3299-003 is an 8-port data multiplexor designed for connecting and managing serial data lines in IBM system environments. This unit handles multiplexing of data streams across eight RJ11 ports, making it essential for systems requiring consolidated data routing and line management. The NFPA Type II rating indicates compliance with National Fire Protection Association standards for electrical equipment safety and performance.

Specifications & What's Included

• Manufacturer: IBM
• Model: 3299-003
• Part Number: 66X2766
• Port Configuration: 8 ports
• Connector Type: RJ11
• Device Type: Serial Data Multiplexor
• Standards: NFPA Type II rated
• Interface: Serial multiplexed architecture
• Form Factor: Desktop / benchtop unit

Applications

The IBM 3299-003 multiplexor was used in IBM system configurations where multiple serial data lines needed to be consolidated and managed through a single control point. This type of equipment is common in legacy IBM computing environments, data center configurations, and systems requiring serial line aggregation. The 8-port design allowed operators to manage multiple data connections efficiently, routing traffic as needed across the multiplexed channels. These multiplexors are still sought by organizations maintaining vintage IBM systems and by collectors of classic computing equipment.