Chapter 2 Setup Installing to the DP-210 Because the illustration used here is for the RS-232/USB model, there are 2 cables. The RS-232 model have 1 cable. 1 Pass the cable for the DM-D210 through the support. When using the extension support, insert the tab on it into the hole on support until you feel it click. 2 When using the extension support 2 Insert the tab on the support (or the extension support) into the hole on the DP-210 until you feel it click. 36