Technical Product Manual - DCT1900Installation Instructions, Modular Cabinet – Installation Steps3-2 Install-DCT1900/R8/mw© 2000-2005CLUs/SLUsCLUs and SLUs are placed on the right hand side of the cabinet. In this position CLU/MDF cablesdo not influence the accessibility of the MCCB.SPUsSPUs are placed in the middle of the cabinet.DLUs/DTUsDTUs/LTUs/DLUs are placed on the left hand side of the cabinet next to the CPU. If both DLUsand DTUs are used, it is recommended that the DLU be placed closest to the CPU.LTUsLTUs should be placed in the cabinet from left to right in groups of three. One LTU/MDF cable isdesigned to support three LTU boards installed side by side.Note:CLU/SLU, SPU, LTU, DTU and DLU boards will work in any position in the cabinet.3.3 Main Steps of InstallationInstalling Directly to the Wall1. Unpack the system (except system boards). See Paragraph 3.42. Charge Portable Telephone batteries. See Paragraph 3.53. Pre–mount the Modular Cabinet(s). See Paragraph 4.5 or 4.64. Install SDB if required. See Paragraph 4.75. Place the board position label. See Paragraph 3.86. Mount the Modular Cabinet(s). See Paragraph 4.87. If applicable interconnect Modular Cabinets. See Paragraph 4.118. Connect protective earth ground to the cabinet. See Paragraph 4.99. Install the power cabling of the cabinet. See Chapter 19, Power Cabling10. Connect the static strap. See Paragraph 4.1011. Install the system boards. See Chapters 5 to 1412. Install the cabling. See Chapters 6 to 1813. Mount the Base Stations and test the BaseStation cables. See Chapter 1614. Switch on the DCT1900 system. See Paragraph 3.6