The Complete Handbook of Concentrators & Multiplexers

This is exactly what I needed. I've been managing network infrastructure for eight years and always felt unclear about when to use a concentrator versus a multiplexer—the book makes it concrete with real scenarios. Chapter 1 alone clarified the difference between time-division and frequency-division in a way that finally stuck. The installation section saved me hours of trial-and-error on our recent backbone upgrade. Highly recommended for anyone who works with network hardware.

Solid technical reference, though not perfect. The early chapters are excellent—clear explanations with actual use cases. But I found the brands and suppliers chapter (Chapter 6) feels a bit thin; I wanted more detail on which manufacturers actually lead in which segments and current pricing trends. The troubleshooting section is practical, but I wish there were more field stories showing what actually goes wrong in production. Still, it's the most useful handbook I've found on this topic.

This book does what it promises: gives you practical knowledge instead of marketing fluff. The distinction between concentrators and multiplexers, and when you actually need each one, is explained better here than in any vendor doc I've read. That said, some of the technical sections assume you're already comfortable with network terminology, which might leave less experienced folks behind. If you're already in the industry, you'll get real value. If you're brand new, you might need to cross-reference other basics first.

Useful and well-organized. I appreciated the concrete examples throughout—especially the scenarios in Chapter 3 on choosing the right device for your situation. My only complaint is that the future trends section feels a bit speculative; I would have preferred more hard data on where the market is actually shifting. Still, this is a legitimate reference that I'll keep on my shelf for real work situations.

Good handbook overall, but it's more aimed at professionals already in the field than I expected. The technical depth is valuable, but the writing sometimes assumes you know what a T1 line is or what 'statistical multiplexing' means without spelling it out. The glossary helps, but it comes at the end. Chapter 1 is clear, but later chapters get denser. It's a solid reference—just be aware of the experience level it's pitched at.

Finally, a handbook that treats this category seriously instead of as an afterthought. The explanation of how signal combining works physically, and why you can't just use a cable, makes immediate sense. Installation chapter is practical and detailed without being patronizing. My only wish: more real-world failure case studies in the troubleshooting section, and maybe some cost-per-channel comparison tables for different scenarios. Still the best resource I've found for this topic.