Application Notes

The TM-Series platform has been extremely successful due to its ability to combine CWDM, DWDM and SDH technologies within the same system, sharing the same card cage, carried on the same fiber and being managed by the ame management system.

Also, the ability to support both single-fiber as well as fiber-pair configurations opens for unique networking solutions hat can be used for both access, metro and regional networks.

The TM-Series platform has been extremely successful due to its ability to combine CWDM, DWDM and SDH technologies within the same system, sharing the same card cage, carried on the same fiber and being managed by the same management system.

Also, the ability to support both single-fiber as well as fiber-pair configurations opens for unique networking solutions that can be used for both access, metro and regional networks.

Amplified DWDM links utilizes one single-fiber for transmit direction, and the other for receive direction. This enables introduction of optical amplifiers, since these can only operate in one direction. The figure above shows a typical DWDM point-to-point link for multiple channels using one intermediate line amplifier site. Management access to the intermediate line amplifier site is created by using a separate OSC channel (Optical Supervisory Channel). This channel is created by the Control Unit (CU) and is based on a CWDM wavelength channel operating on one of the single-fibers.

This Application Note covers a couple of networking examples for access applications. The TM-Series has a vast variety of networking solutions to address any need that can arise in an access, metro or regional network. Contact Transmode or a Transmode representative for more information.