Displays either odd or even. This field is used to choose the operating wavelength
for the card. Supported wavelengths have been grouped in two groups Odd and Even. Each group includes wavelengths spaced 100GHz; Odd and Even wavelengths are interleaved to provide an overall pattern of 50GHz spaced channels. Currently the 32-WSS, 32-DMX, 32MUX-O, 32DMX-O, AD-xC-xx.x, and the AD-xB-xx.x cards support channels in the Odd grid.