tailieunhanh - xây dựng trạm bts phần 7

Đặc biệt còn phối hợp với chính quyền địa phương tổ chức các buổi họp dân tại các điểm nóng thường xuyân diễn ra tình trạng khiếu kiện để Sở giải đáp thắc mắc, tuyên truyền hướng dẫn trực tiếp đến người dân. Đảm bảo cung cấp các thông tin chính xác giúp nhân dân hiểu được vai trò quan trọng của các trạm BTS; tạo nên sự đồng thuận trong nhân dân. | Routing the BTS3900 Cables for stacked Cabinets a Routing the Cables When Two -48 V DC Cabinets Are stacked o e Route and bind the cables by using the method mentioned in Routing the Cables for a Single -48 V DC Cabinet. Lead the 12 feeders in the upper cabinet upwards until they are out of the cabinet. Cable distribution of -48 V cabinet upper cabinet in stack mode top view Jumper Jumpers for upper cabinet Routing the Cables When a 24 V DC Cabinet and a -48 V DC Cabinet Are stacked Cable distribution of 24 V cabinet Jumper Routing the Cables When a 220 V AC Cabinet and a -48 V DC Cabinet Are stacked Cable distribution of 220 V cabinet Jumper 57 d Routing the Cables for the -48 V Cabinet in stack Mode Example I E1 cable and E1 surge protection transfer cable Power cable Signal cable RF cable 58 I Checking the BTS3900 Hardware Installation Checking the Power-On Status of the BTS3900 Cabinet o Check the cabinet installation by referring to the Checklist for the Installation of the BTS Cabinet. For the items that do not meet the requirement rectify the items until they meet the requirement. o Check the installation of the power cables PGND cables and signal cables by referring to the Checklist for the Installation of the BTS Cables. For the items that do not meet the requirement rectify the items until they meet the requirement. Use a multimeter to check the resistance between the external power supply and the ground. Ensure that no short circuit exists. o Turn on the power switch of the BTS3900 cabinet If. Then. The BTS3900 cabinet uses the -48 V DC input Go to step 7 The BTS3900 cabinet uses the 24 V DC or 220 VAC input. Go to step 5 0 Check the power-on status of the PSU Danger Before powering on the PSU you should set the power switches to OFF. Direct or indirect contact with damp objects connected to high-voltage wires may be fatal. a. Connect all the power distribution cables of the PSUs in the power system. b. Insert the PSUs one by one. and then check the LEDs