Tuesday, February 4, 2025

PON standards is GPON

 


Fiber optic networks operate according to various standards for Passive Optical Networks (PON). PON is a network system designed specifically for fiber optic technology to provide broadband network access to homes and businesses. One of the many PON standards is GPON.

GPON stands for Gigabit Ethernet Passive Optical Network (PON). GPON uses Asynchronous Transfer Mode (ATM) for voice, Ethernet for data, and a proprietary encapsulation for voice. This means that fixed-size cells are used instead of variable-size data packets. It offers faster Gbit/s in downstream and upstream bandwidth than EPON (Ethernet Passive Optical Network).

GPON system consists of an Optical Line Terminal (OLT) that connects multiple Optical Network Terminals (ONT/ONU) over a Passive Optical Distribution Network (ODN).

 

GPON supports:

• Triple-play services (VoIP, data, IPTV) and offers competitive all-service solutions.

• Higher data rates and bandwidth

• Longer distances

• Improved security and data encryption (supports 128-bit block length and 128, 192, and 256-bit key lengths)

• All types of Ethernet protocols

 

GPON offers:

 

• Superior Quality of Service (QoS)

• Dynamic bandwidth allocation capabilities

• Flexibility

It is a popular option among major telecommunications operators worldwide. GPON also allows the consolidation of multiple services onto a single fiber optic transport network, which is why many choose GPON over other technologies.

 

GPON Basics and How It Works:

GPON is a point-to-multipoint access network. The main feature of GPON is the use of passive splitters in the optical fiber distribution network (ODN), which allows a single fiber optic cable from an Internet service provider (ISP) to serve multiple homes and businesses. Fiber optics means that fiber optic technology uses cables to transmit light.

In this example, the GPON system starts at the Optical Line Terminal (OLT) at the Internet Service Provider's (ISP) headquarters.

1. The Internet, voice/telephone, and TV data services provided by the ISP originate from here.

2. This data travels through a single Optical Fiber Distribution Network (ODN) until it reaches a passive optical splitter.

3. When the data reaches the splitter, the optical signal is split into multiple signals and distributed to individual ONT/ONU devices in your home or business, providing access to these services. The ONT/ONUs are the endpoints.

The steps are:

OLT sends point signal > ODN > splitter splits into multiple signals > multiple ONTs/ONUs receive the signals.

This is a simplified version, but it gives you a rough idea of ​​what happens in a GPON system.

GPON offers a wide range of benefits that enable high speed, flexible mass market fiber deployments at the lowest possible operational and deployment costs. Ask your ISP about Hitron's offerings today.

Sunday, November 10, 2024

RAM is where the operating system stores

 

Storage Area

For memory, we recommend 16GB of RAM, and 8GB is the minimum. RAM is where the operating system stores all data from running applications, and it can fill up quickly. After that, it starts switching between RAM and SSD, which is slow. Most laptops under $500 have 4 or 8 GB, which combined with a slower drive can speed up the Windows laptop experience. In addition, most laptops now have built-in memory on the motherboard. Most manufacturers specify this, but if the RAM type is LPDDR, assume that it is sold and cannot be upgraded.

Some PC of hp manufacturers also sell memory and leave the internal space empty to install RAM modules. You can contact the manufacturer of the laptop or check the detailed specifications of the laptop online to confirm it. But look at the user experience on the web, where it can be difficult to get there, it may require non-standard or difficult to access storage or other pitfalls, including warranty violations.

 


Security

You'll still find cheap hard drives in budget laptops and larger hard drives in gaming computers, but fast SSDs have largely replaced hard drives in laptops. They can make a big difference in performance. But not all SSDs are fast, and cheap computers often have slow drives; If the laptop only has 8 GB of RAM, it can stop changing the disk and the system can crash quickly when you are working.

Get what you can afford, and if you must use a smaller drive, you can add an external drive or two later, or use cloud storage to expand the smaller internal drive. The only exception is for gaming laptops: we don't recommend using an SSD smaller than 512 GB unless you like to uninstall games every time you want to play a new game.

Saturday, September 21, 2024

Arista DCS-7050S-52-F 52x 10GB SFP

 

 


Overview

Arista DCS-7050S-52-F 7050S Series Switches offer high-performance networking with superior specifications . 1.04 Tbit/s switching capacity can efficiently handle large amounts of data traffic. Transfer speeds are also impressive at 960 Mpps, ensuring fast and reliable data transfer.

The switch also has a generous MAC address table size of 128,000 entries, allowing for efficient processing and forwarding of network packets. Low latency minimizes delays in distributing information across the network. Designed to support

PoE (Power over Ethernet), this model provides power to connected devices such as IP phones and wireless access points without the need for separate power cables or adapters.

Arista DCS-7050S-52-F: Arista 7050 switch with 52x 10 Gigabit SFP+ uplink ports. The switch has front-to-back airflow and two 460W AC power supplies.

 

 

Arista AOC-Q-Q-100G-10M is a high quality active optical cable for seamless communication in data center and network environments. This 10 meter long QSFP28 cable provides reliable connectivity at blazing speeds of up to 100GB. The

AOC-Q-Q-100G-10M ensures optimal signal integrity without interference or loss. Robust construction ensures durability and long-lasting performance even under harsh conditions.

This innovative fiber optic solution eliminates the need for a separate power cable by using low power modules. This feature simplifies installation while ensuring an environmentally friendly footprint.

Arista AOC-Q-Q-100G-10M: 100GbE QSFP to QSFP active optical cable, 10m.

 

Included

• Seller Refurbished Arista DCS-7050S-52-F 7050S Series 52x 10GB SFP+ Front-to-Back Airflow Switch (see above) 1 pc

• 1 power cord included

• 2 AC power supplies included

• 4 fan modules included

• 1 set of rack mounting brackets included

 

Not included

• No manual or product brochure included. No software or firmware DVD or CD included.

Product information and installation instructions can be found on the manufacturer's website or online. Software or firmware updates may be available from the manufacturer's