The Telecommunications Industry Association, which develops standards for the information and communications technology industry, has released two new documents, TIA-526.2-A Effective Transmitter Output Power Coupled into Single-Mode Fiber Optic Cable - Adoption of IEC 61280-1-1 ed. 2 Part 1-1: Test Procedures for General Communication Subsystems – Transmitter Output Optical Power Measurement for Single-Mode Optical Fibre Cable and ANSI/TIA-526.7-A Measurement of Optical Power Loss of Installed Single-mode Fiber Cable Plant, adoption of IEC 61280-4-2 edition 2: Fibre-Optic Communications Subsystem Test Procedures – Part 4-2: Installed Cable Plant – Single-Mode Attenuation and Optical Return Loss Measurement

The objective of TIA-526.2-A is to provide a specification of the Radio Management Protocols for the A Interface. The information necessary to enable interoperable radio management services and functionality over this interface is provided in this document or referenced in other documents as appropriate. The radio management protocols support the following three functions: (a) signaling used by the MDP to configure the SU (b) signaling to request information from the SU and (c) signaling related to alarm reporting or other unsolicited event reports generated by the SU.

ANSI/TIA-526.7-A can be used to measure the optical loss between any two passively-connected points, including end terminations, of a single-mode optical fiber cable plant. The optical fiber cable plant, as the term is used here, may consist of optical fiber cables, connectors, mounting panels, jumper cables, and other passive components, but may not include active components.

ANSI/TIA-526.2-A and ANSI/TIA-526.7-Awas formulated under the cognizance of the TIA TR-42 Telecommunications Cabling Systems, TR-42.11 Optical Systems (568) subcommittee.

For more information about TR-42 and how to participate in standards development with TIA, contact Germaine Palangdao at

TIA is actively seeking participation on these committees from the user and general interest communities.