|
|
|
Global standards for automatically switched optical networks enable new market services
27 March 2002, News
New global standards for Automatically Switched Optical Networks (ASON) and their control mechanisms have been adopted as a result of an aggressive work programme initiated by ITU to support bandwidth-on-demand applications. The standards add switching capability to the installed optical fibre infrastructure.
ASON control mechanisms provide support for both switched wavelength and sub-wavelength connection services in transport networks to provide bandwidth on-demand. Wavelength connection services make use of an entire wavelength of light while sub-wavelength services use a channel within a wavelength.
The ASON control mechanisms also enable fast optical restoration. Traditionally, transport networks have used protection rather than restoration to provide reliability for connections. With protection, connections are moved to dedicated or shared routes in the event of a failure of a fibre or network equipment. With restoration, the endpoints can 'redial' to re-establish the connection through an alternative route as soon as a loss of the original connection is detected.
Restoration is a defined advantage for carriers as it makes better use of the network capacity and, with this new standard, it can be performed much faster than with most proprietary restoration systems available today.
www.itu.int |
|
|
| Share: |
 |
Via email client |
 |
 |
 |
 |
print |
|
|
|
|
|
Further reading:
- Electronics news digest
23 October 2019, News
South Africa
• The deputy minister of Trade and Industry, Fikile Majola, has told community members in Evaton in Gauteng’s Vaal region that government is taking major steps towards the designation of ...
- Video Reel: October
23 October 2019, News
• The CSIR has developed an electronic device that monitors indoor carbon dioxide levels and generates an alarm when corrective action is needed. You can watch a video about it at www.dataweek.co.za/*csirvid1019...
- From the editor's desk: Or, we could make smartphones
23 October 2019, News
The last decade or so has been a running litany of misery for the South African electronics manufacturing industry. There’s no point naming any names, but those readers who’ve been around for a while ...
- Win a Microchip LoRaWAN evaluation kit
23 October 2019, News
Dataweek readers stand a chance to win a SAM R34 Xplained Pro evaluation kit for LoRaWAN development (ATSAMR34-XPRO) from Microchip Technology. The kit is a hardware platform used to evaluate the ATSAMR34 ...
- Red Bull Basement Hatch showcases Cape Town’s tech talent
23 October 2019, RS Components (SA), News
Cape Town’s brightest young tech geniuses gathered in Woodstock in September to share their ideas and their creations at the Red Bull Basement Hatch event. The Red Bull Basement Hatch brings together ...
- Clearing the Static: Topic 8: Antistatic cleaning materials
23 October 2019, Altico Static Control Solutions, News
Static charge can build up anywhere at any time, which means ESD-sensitive objects are always at risk. Cleaning materials can be the chink in one’s armour that compromises the entire ESD control system. ...
- Electronics news digest
25 September 2019, News
South Africa
• The Institute of Electrical and Electronics Engineers (IEEE) has awarded South Africa’s IEEE section the prestigious 2019 MGA Outstanding Medium Section Award. The award is in recognition ...
- Company profile: Harmony Electronics
25 September 2019, News
The globalisation of the electronics industry over the last few years has seen tremendous growth in the shipments of semiconductor products worldwide, with more focus on connectivity. Access to components ...
- Hensoldt merges its SA subsidiaries
25 September 2019, News
The company has merged its two South African subsidiaries, GEW Technologies and Hensoldt Optronics South Africa, into the consolidated Hensoldt South Africa brand.
- Q&A with iPulse Systems
25 September 2019, iPulse Systems, News
We asked Gary Chalmers, the CEO of local developer and manufacturer iPulse Systems, to tell us what new and exciting technologies the company has been working on lately.
- Clearing the static - Topic 7: Moisture management
25 September 2019, Altico Static Control Solutions, News
Relative humidity (Rh) is a significant factor contributing to effective static control. When humidity in the working environment decreases, the human body and other insulators can easily charge with ...
- Start your MCU learning journey today
25 September 2019, News
Harmony Electronics offers a course to learn the ANSI ‘C’ embedded control language in just 10 weeks. The training takes place on Saturday mornings over three hours at a cost of R350 per hour (R1050 total ...
|
|
