Huawei H19-315 Exam - Topic 5 Question 13 Discussion

Actual exam question for Huawei's H19-315 exam

Question #: 13
Topic #: 5

[All H19-315 Questions]

What are the basic components of the PON system?

AWDM

BONU

COLT

DODN

Show Suggested Answer

Suggested Answer: B, C, D

A Passive Optical Network (PON) system consists of three primary components:

OLT (Optical Line Terminal):The central device located at the service provider's premises. It connects to the core network and manages communication with multiple ONUs.

ONU (Optical Network Unit):The customer-side device located at the user's premises. It converts optical signals into electrical signals for end-user devices.

ODN (Optical Distribution Network):The passive infrastructure that includes optical fibers, splitters, and connectors to distribute signals between the OLT and ONUs.

WDM (Wavelength Division Multiplexing) is a technology used in optical networks but is not a basic component of a PON system. It is often used in advanced PON systems like XG-PON or NG-PON2 to separate upstream and downstream wavelengths.

ITU-T G.984 Standard - PON Architecture

Huawei PON System Design Guide

by Percy at Jul 09, 2025, 12:40 AM

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Vince

2 months ago

Sounds a bit too complicated for a basic system, not sure about this.

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Paola

2 months ago

Wait, are all those really necessary?

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Casandra

3 months ago

Totally agree, those are the key components!

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Johnathon

3 months ago

Don't forget about ODN, it's crucial too!

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Joana

3 months ago

PON systems include WDM, ONU, and OLT.

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Vernice

3 months ago

I definitely remember ODN being part of the system, but I can't remember if it's as crucial as the others like ONU and OLT.

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Lyndia

4 months ago

I feel like I might confuse OLT and ONU; they both seem important, but I can't recall their exact roles right now.

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Sina

4 months ago

I remember practicing a question about PON systems, and I think WDM was mentioned as a key component.

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Sean

4 months ago

I think the basic components include ONU and OLT, but I'm not sure if ODN is also considered a main part.

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Katina

4 months ago

This question seems straightforward enough. The basic components are the ONU, OLT, and ODN, which make up the passive optical network. I'm confident I can answer this one correctly.

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Tijuana

4 months ago

Okay, let me see. I know WDM is involved in PON systems, so that's definitely one of the components. The ONU and OLT also sound familiar as key parts of the PON architecture. I'll mark those down and see if I can remember anything else.

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Melissia

4 months ago

Hmm, I'm a bit unsure about this one. I know PON stands for Passive Optical Network, but I can't recall all the specific components off the top of my head. I'll have to think this through carefully.

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Jin

5 months ago

I'm pretty sure the basic components of the PON system are the ONU, OLT, and ODN. I remember learning about those in class.

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Cyril

5 months ago

Hmm, this is a tough one. I'm going to go with B, C, and D. But I'm secretly hoping the answer is 'all of the above and a partridge in a pear tree'.

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Dulce

5 months ago

I think A, B, C, and D are all essential!

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Dortha

5 months ago

Can't imagine PON without those components.

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Ryan

5 months ago

For sure, every part plays a role.

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Jaclyn

5 months ago

Haha! The partridge would be nice too!

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Rebecka

7 months ago

ODN stands for optical distribution network, it's the part of the PON system that connects the OLT to the ONU.

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Jesusita

7 months ago

Definitely B, C, and D. I can't believe they're even asking this, it's Networking 101!

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Kaitlyn

7 months ago

B, C, and D. I'm skipping the WDM, it sounds like a fancy sandwich spread.

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Justa

5 months ago

I agree, WDM does sound like a sandwich spread.

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Albina

7 months ago

I'm not sure about ODN, can someone explain what that is?

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Jimmie

7 months ago

All of the above! PON is like a fancy tech buffet, you gotta have a little bit of everything.

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Esteban

5 months ago

A) WDM

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Charlene

7 months ago

I agree with Rebecka, those are the main components. WDM is for wavelength division multiplexing, ONU is the optical network unit, OLT is the optical line terminal, and ODN is the optical distribution network.

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Rebecka

7 months ago

I think the basic components of the PON system are WDM, ONU, OLT, and ODN.

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