Continued… DWDM Part XI

It’s nice to be back online again after a long Eid ul-Fitr break and quite busy at the office.

Frost & Sullivan published its Market Insight on “WDM PON: How Long Is It Going To Take?” on 16 Nov 2009 and the extract of the report was posted in the previous post (DWDM Part X), among others stated that “…. The idea is right with WDM-PON but the technology still needs 4-5 years to become practical. ….”. Thus, Adeel Najam (the author) anticipated that WDM-PON will become practical in 2013-2014.

In Malaysia, deployment of DWDM has taken place. Thanks to the bold Telcos/Carriers such as Fiberail and TIME dotCom.

TIME dotCom has a fiber optic network that covers a large portion of Malaysia and features 5 redundant routes totaling 6,000 kilometers. Upgrading from SDH to DWDM in 2009 gives TIME dotCom a new competitive edge and increased market share.

The new DWDM network has been operational  since December 2009 and TIME dotCom decided to make the move to DWDM because their concentration is in the wholesale market where the customers now want more bandwidth, and they needed to have a very effective network that could provide 99.999% reliability. SDH networks on the other hand are subject to congestion and did not provide the efficiencies the company wanted for its customers.

The maximum connection speed that the SDH network could support was 10 Gbps. TIME’s new DWDM network can support as many as 88 wavelengths per fiber, with each wavelength providing 10 Gbps connectivity. And in the future, the DWDM system can be easily upgraded to support 40 Gbps or even higher data rates per wavelength.

TIME’s DWDM network with 88 wavelengths per fiber where the capacity is virtually unlimited plus the GMPLS-based mesh protection at the wavelength level that offers automatic reroute protection even in the event of multiple fiber cuts. This scheme enables the TIME to offer 99.999% reliability that it can provide using its 5 fiber routes and therefore, gives TIME an important differentiator.

The DWDM network provides substantially higher bandwidth with fewer network elements and should be less expensive to operate, particularly when costs are calculated on a per-bit basis and the carrier can expect a significant OPEX reduction.

With new DWDM+GMPLS-based mesh protection, TIME’s Cross Peninsular Cable System (CPCS) network is claimed to be the most robust transborder terrestrial system ever built. Designed as a fully meshed network over 5 diverse fiber routes running along both
coasts, alongside major highways and via utility corridors, CPCS traverses more than 6,000 km with dedicated fiber optics connecting Thailand and Singapore.

Below is TIME’s DWDM network diagram:

TIME dotCom's DWDM Network

TIME dotCom's DWDM Network

Source:  Tellabs Insight Magazine, 3rd Quarter 2010. Click  here to download.

Tellabs Insight Magazine, 3rd Quarter 2010

Tellabs Insight Magazine, 3rd Quarter 2010


GMPLS:  Generalized Multi Protocol Label Switching

OPEX:  Operating Expenses/Expenditures

PON:  Passive Optical Network

SDH:  Synchronous Digital Hierarchy

WDM:  Wavelength Division Multiplexing

To be continued… DWDM Part XII