The Physical Layer through Optical Networks
SKU: 54869167947

The Physical Layer through Optical Networks

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Description

The Physical Layer through Optical NetworksThis specialty workbook was written for second year College students in a computer systems and networking program. Electrical and optical network devices, protocols and systems are used in developing the key physical principles and concepts of the OSI model's physical layer. Topics include: transmission media, Optical and twisted pair connectors, pinout assignments, signal speed and voltage, signal encoding and transmission devices, electrical cable

This specialty workbook was written for second year College students in a computer systems and networking program.

Electrical and optical network devices, protocols and systems are used in developing the key physical principles and concepts of the OSI model's physical layer.

Topics include: transmission media, Optical and twisted pair connectors, pinout assignments, signal speed and voltage, signal encoding and transmission devices, electrical cable properties of RC filters and decibel calculations.

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SKU: 54869167947

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Verified Purchase
Gwen D.
West Palm Beach, US
★★★★★ 5
It's one of the only toys that we originally got for our pup that has lasted
Color: Blue goose - pineapple plush
We got a lab mix (we think with a Great Dane) on Labor Day weekend 2025. She has destroyed 100% of the toys we got her that weekend, with the exception of this duck. Yes, it is missing it's feet at this point (they got chewed off and torn sometime around Halloween), but the duck itself is still intact. She chews on the duck every day, it's one of her favorite toys, and it's seen some things. We've washed it a few times in the laundry machine, and it looks nice a clean every time we pull it out and let it dry. She's gnawed on it through losing puppy teeth and getting adult teeth, and she's is currently chewing away on her duck on her bed in the living room. I understand others have reported really mixed reviews, but I'm so glad we got this duck and it's one of the only toys we've bought that I feel like was worth the price because it didn't get destroyed immediately. We plan on buying another one for Christmas.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 18, 2025
M
Verified Purchase
Mummy
Boise, US
★★★★★ 5
Honestly….
Color: Blue goose - pineapple plush, Color: Blue goose - pineapple plush
I hate to buy Giant or Tiny a toy only to find it in some corner ignored. Would this goose make a lifetime friend OR would it fly away to some unknown corner of the house?!?! I was thrilled that Giant wanted to open the box himself. As soon as I set it on the table for some pictures, Giant saw his chance and grabbed it. This happened again! Safe to say, our family gives this a FIVE!! This is great as it squeaks and crinkles. It is super soft cloth and states it can hold up to aggressive chewers. It is one foot long. The stitching all seems to be in place. They state it is "Upgraded Indestructible" as it is sturdier material. The last toy has lived up to that claim. QUALITY: 5 out of 5 PROS: For us, it's the crinkle sound. I'm not sure why but they love that sound. Easy wash and go is great too! CONS: I wish it was bigger than one foot but that is because I have a big dog. Overall, Fantastic toy that is always with a dog. I will need to purchase more to have hidden away should it ever get lost.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 1, 2026
E
Verified Purchase
EUP
Houston, US
★★★★★ 3
“Indestructible” not so much
Color: Blue goose - pineapple plush
Cute as can be, but the cloth-only tips on the wings and tail were immediately ripped off, eaten, and vomited. I’m hoping without those, the toy will be “more” indestructible.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
K
Verified Purchase
Kindle CustomerJoanne
Boise, US
★★★★★ 4
He loved the toy
Color: Blue goose - pineapple plush, Color: Blue goose - pineapple plush
My dog loved this toy, however it is not indestructible, he had it in 2 pieces within a day, but I do need to say he is a big boy and we haven’t found a toy yet that he can’t destroy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026
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Verified Purchase
LoriK
Phoenix, US
★★★★★ 2
Disappointed
Color: Platypus - pineapple plush, Color: Platypus - pineapple plush
3 month old husky mix ripped this toy open within hours of having it and as of now, all the feet are missing. I only let him play with it a few hours a day because of the squeaker, so not as advertised.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026

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