What is the maximum splice loss specified by Telcordia GR-20 and GR-765?

What is the maximum splice loss specified by Telcordia GR-20 and GR-765?

• A. 0.1 dB
• B. 0.5 dB
• C. 1.0 dB
• D. 0.01 dB

Answer: (A)

Splice loss is the extra attenuation introduced where two fiber ends are joined. Telcordia GR-20 and GR-765 set a limit on how much loss a single splice may introduce to keep overall link budgets manageable in telecom networks. For standard single‑mode fiber, that limit is 0.1 dB per splice. This tight cap is intentional: with many splices along a path, even small losses add up, so a low per‑splice maximum helps maintain adequate signal strength and margin. Higher values like 0.5 dB or 1.0 dB would quickly erode the budget, while 0.01 dB is not realistic given typical manufacturing tolerances and measurement noise.

Splice loss is the extra attenuation introduced where two fiber ends are joined. Telcordia GR-20 and GR-765 set a limit on how much loss a single splice may introduce to keep overall link budgets manageable in telecom networks. For standard single‑mode fiber, that limit is 0.1 dB per splice. This tight cap is intentional: with many splices along a path, even small losses add up, so a low per‑splice maximum helps maintain adequate signal strength and margin. Higher values like 0.5 dB or 1.0 dB would quickly erode the budget, while 0.01 dB is not realistic given typical manufacturing tolerances and measurement noise.