TIA TSB-140

Testing conducted on optical fiber cabling should be in accordance with a published standard. This Telecommunications Systems Bulletin (TSB) describes field-testing of length, optical attenuation and polarity in optical fiber cabling using an optical loss test set (OLTS), optical time domain reflectometer (OTDR) and a visible light source such as a visual fault locator (VFL). The purpose of this document is to clarify, not replace, ANSI/TIA/EIA-526-7 and ANSI/TIA/EIA-526-14A.

Tier 1 criteria, unless otherwise instructed or requested, constitutes testing in accordance with this TSB.