This card can be applied in the OTM, OADM, OLA and other stations. It is usually
configured in the receiving direction. Figure 5-95The following figure takes a DGE
card at the receiving direction of the OTM station as an example to illustrate the
signal flow of the DGE card in the system. Since the insertion loss of the DGE card
is relatively high and the system may configure more high insertion loss cards such
as the DCM card and the ITL50 card, you should use the PA + OA amplification
mode at the receiving direction.
Figure