Synchronous Digital Hierarchy (SDH)
(ระบบลำดับชั้นดิจิทัลซิงโครนัส (SDH))
Definition
Synchronous Digital Hierarchy (SDH) (ระบบลำดับชั้นดิจิทัลซิงโครนัส (SDH)) Hard Skill
Synchronous Digital Hierarchy (SDH) is a standardized telecommunications protocol that transfers multiple digital bit streams synchronously over optical fiber using lasers or highly coherent light from LEDs.
Expertise Level
Level 1
Basic
1. Understands the fundamental concept of SDH and its purpose in telecommunications.
2. Recognizes basic components such as STM-1 and simple network elements.
3. Can explain the basic frame structure and transmission rates of SDH.
Level 2
Intermediate
1. Can configure and troubleshoot SDH network elements and multiplexers.
2. Understands the hierarchy levels and how different signals are multiplexed within SDH.
3. Able to perform basic fault detection and perform risk analysis on the SDH network.
Level 3
Advanced
1. Designs and optimizes complex SDH network architectures for scalability and reliability.
2. Analyzes and resolves intricate issues involving synchronization, timing, and signal integrity in SDH systems.
3. Implements advanced protection and restoration mechanisms in SDH networks to ensure high availability.
