The D8201A is either a 1 x 8, or a Dual 1 x 4 AES/EBU digital audio distribution amplifier designed specifically for use in 110 ohm, balanced, twisted pair cable installations. The D8201A is a DA in Ward-Becks' 8200 Series, and it uses TB8201AP rear module. Features such as cable equalization and data reclocking allow the D8201A to reliably recover the incoming digital signal. Lock, Confidence, No Lock, and equalization LED indicators are all visible from the front edge of the card. Located at the top edge of the card is the EQ insert switch, which automatically activates the cable equalization without having to set any jumpers.