The Audio Accessories WDBP-961-SH is a 96pt TT Front/Dsub Rear Patchbay, 1U,  features rear DB25 connections, rear normalling/grounding switches, 1U chassis size, rear cable tray, can be used for ANALOG and AES DIGITAL signals. This unit features exceptional flexibility with the Audio Accessories, Inc. exclusive Quick-Switch normalling system located on the rear of the panel. The Quick-Switch normalling allows you to set the individual normals on a per jack pair basis. This enables you to full-normal (FN), half-normal (HN) or non-normal (NN) by sliding the switches into the appropriate position. You also have grounding options: isolated, bussed, or grounds vertically strapped (GVS).