12 Aug 2009 this rugged optical add/drop multiplexer provide a flexible and cost effective solution to enable capacity expansion of existing fiber,configurable for bidirectional or unidirectional transport. It is a flexible and low-cost equipment that enables capacity expansion of existing fiber. Coupled with reliable passive optics that are certified for harsh environment applications,the CWDM OADM let carriers make full use of the fiber’s available bandwidth in the local loop.it can incorporate in the systems different cwdm gbic include cwdm gbic 1470,cwdm gbic 1490,cwdm gbic 1510 and cwdm gbic 1530.it is configurable for bidirectional or unidirectional transport. | 
