Product Name: WDM+PD The "WDMPM" is Abbr. of the words "WDM+PD", it's based on WDM filter and assembly with PD together. Normally Transsmission/Reflection wavelength is T1550/R1310&1490. The PD is for signal Rx, reflection tap port used for other 2 wavelength. |
Product Name: TAP+PD The "TPM" is Abbr. of the words "Tap PD", it's based on tap filter and assembly with PD together. Normally Transsmission/Reflection splitting ratio is 98/2 or 95/5 etc. The PD is for signal Rx, reflection tap port used for signal monitoring. |