The return loss for both non-multiplexed and multiplexed channels are within the required limits for stable operation as defined by Texas Instruments FPD-Link SerDes shown in red in Figure 6-4. In this test setup, the hardware used was a variation of the setup shown in Section 2, and this board variation had both CH3 and CH4 connected to a multiplexer. CH1 and CH2 were the non-multiplexed channels in this setup.

Figure 5-2 Channel Return Loss