3-E is a standard established by the Telecommunications Industry Association (TIA) that specifies the performance, transmission, testing, and measurement requirements for premises fiber optic cables, connectors, connecting hardware, and jumpers. 3‑E “Optical Fiber Cabling and Components Standard” was developed by the TIA TR‑42. Internationally, IEC/ISO 11801 is very similar, although there are differences in various countries. TIA-568 has been under continual revision since its inception. The current. L U im se i t C ed op y This copy is provided to Mike Corke of The Siemon Company for service in TR-42. Contact TIA (standards@tiaonline. These standards ensure interoperability between components, predictable channel.