CriticalPoint UHF Public Safety DAS DISTRIBUTED ANTENNA SYSTEM USER MANUAL Public Safety UHF DAS System QE: 1-0-0 Comba Telecom Network Systems Limited
The information contained herein is the responsibility of and is approved by the following, to whom all enquiries should be directed: This is an unpublished work the copyright in which vests in Comba Telecom Network Systems Limited ("Comba"). All rights reserved. The information contained herein is confidential and the property of Comba and is supplied without liability for errors or omissions. No part may be reproduced, disclosed or used except as authorized by contract or other written permission.
INSTALLATION GUIDE FOR UHF DAS 0.1 CONTENTS Section Page 0.1 0.2 0.3 0.4 0.5 CONTENTS ........................................................................................................................................ 3 INDEX TO FIGURES AND TABLES ............................................................................................... 5 HISTORY ...........................................................................................................................................
INSTALLATION GUIDE FOR UHF DAS 6 MAINTENANCE ............................................................................................................................. 38 7 7.1 7.2 7.3 APPENDICES .................................................................................................................................. 39 APPENDIX A: TOOLS ....................................................................................................................
INSTALLATION GUIDE FOR UHF DAS 0.2 INDEX TO FIGURES AND TABLES Figure 1: Master Unit (MU) ............................................................................................................................................. 10 Figure 2: Expansion Unit (EU) ......................................................................................................................................... 11 Figure 3: Remote Unit (RU) ............................................................................
INSTALLATION GUIDE FOR UHF DAS 0.3 HISTORY Change No. ENU Details Of Change 1 1-0-0 This manual first created and issued in Dec. 2021.
INSTALLATION GUIDE FOR UHF DAS 0.
INSTALLATION GUIDE FOR UHF DAS 0.5 SAFETY NOTICES AND ADMONISHMENTS This document contains safety notices in accordance with appropriate standards. In the interests of conformity with the territory standards for the country concerned, the equivalent territorial admonishments are also shown. Any installation, adjustment, maintenance and repair of the equipment must only be carried out by trained, authorized personnel. At all times, personnel must comply with any safety notices and instructions.
INSTALLATION GUIDE FOR UHF DAS damage to the equipment but where there is a possibility of seriously impairing its performance, e.g. by mishandling or gross maladjustment. Warnings and Cautions within the main text do not incorporate labels and may be in shortened form. Disconnection of the RU RF connectors may cause damage to the equipment when power is on. The application antenna and RF cable are not provided. The antenna gain should not exceed 0 dBi.
INSTALLATION GUIDE FOR UHF DAS 1 GENERAL INFORMATION The Public Safety UHF Distributed Antenna System (hereinafter called “UHF PS DAS”) consists of the Master Unit (MU), the Expansion Unit (EU) and Remote Unit (RU). The MU includes the MU Chassis, Power Supply Unit (PSU), and RF module. The Expansion Unit includes the optical modules. The Fiber Optical module is a modular design, and can support up to 4 or 8 independent Remote Units. The Remote Unit is designed with a compact form for easy installation.
INSTALLATION GUIDE FOR UHF DAS Figure 2: Expansion Unit (EU) Figure 3: Remote Unit (RU) End of Section ENU STATUS : 1-0-0 Copyright - refer to title page Page 11
INSTALLATION GUIDE FOR UHF DAS 2 2.1 EQUIPMENT DESCRIPTION SYSTEM DIAGRAM Remark: Battery Backup Unit shown as above figure is only used as a reserved port Figure 4: UHF PS DAS Functional Block Diagram In the downlink path, the BTS signals are received by the donor antenna that is connected to the Master Unit. After the duplexer, the signals are sent to the LNA module for pre-amplification and to the digital RF integrated module for digital filtering and frequency conversion.
INSTALLATION GUIDE FOR UHF DAS 2.3 EQUIPMENT CONSTITUTION The typical UHF PS DAS unit consists of the following components: Power Amplifier (PA): It provides power amplification for both the UL and DL branches. Main Control Unit (MCU): The MCU is used to monitor and control the operation of the repeater. It also provides the communication interface for remote control and status indication. LED indicators provide the operational status of the MCU.
INSTALLATION GUIDE FOR UHF DAS Identifier Descriptions Power1 Power cable connector for a pre-installed power cord for connection to DC (e.g. DC -48V, Max, current is 8A). ALM1/ALM2 Connector for Dry contact or External alarm AUX Used for Equipment extension wiring routing LAN RJ45 Connector for remote connection OMT RJ45 Connector for local WEB GUI connection. PWR/RUN/FUNC/OP LED indictor PWR: ON: Power supply is normal; OFF: Power supply is abnormal.
INSTALLATION GUIDE FOR UHF DAS Identifier Descriptions OP1/OP2 Optical ports UL1 Connect IN1 of MU (Master Unit) DL1 Connect OUT1 of MU (Master Unit) UL2 Connect IN1 of MU (Slave Unit), this port is only used when the backup function is used DL2 Connect OUT1 of MU (Slave Unit), this port is only used when the backup function is used UL_E Connect to UL1 of next EU for cascade connection DL_E Connect to DL1 of next EU for cascade connection Ground terminal Figure 7: RU Equipment Connectors Ta
INSTALLATION GUIDE FOR UHF DAS OMT RJ45 Connector for local WEB GUI connection. OP Optical port, connect to Expansion Unit PWR/RUN/FUNC/OP LED indictor PWR: ON: Power supply is normal; OFF: Power supply is abnormal. RUN: Regular Flashing: RU is working fine; OFF or Always ON: RU is not working properly FUNC: Reserved OP: ON: Optical link is fine; OFF: Optical link is broken, optical TX or RX alarm MT/DL OUT N-Female connector for connection to the service antenna.
INSTALLATION GUIDE FOR UHF DAS 2.5.2 APPLICATION 2: 2 MU (MAIN MU AND BACKUP MU) CONNECT 32 RUS. RU1 Backup MU Main MU EU DL1 UL1 DL_E UL_E DL1 UL1 DL_E UL_E DL1 UL1 DL_E UL_E DL2 DL2 DL2 UL2 UL2 UL2 OP1 OP2 OP3 OP4 OP5 OP6 OP7 OP8 OP1 OP2 OP3 OP4 OP5 OP6 OP7 OP8 OP1 OP2 OP3 OP4 OP5 OP6 OP7 OP8 EU1 EU2 EU3 RU32 DL1 UL1 DL_E UL_E RF Cable DL2 UL2 OP1 OP2 OP3 OP4 OP5 OP6 OP7 OP8 EU4 Fiber Figure 9: Application 2 System Diagram 2.5.
INSTALLATION GUIDE FOR UHF DAS 2.6 SPECIFICATION OF UHF DAS SYSTEM EU Uplink Frequency Band 450-512MHz MHz Downlink 450-512MHz Uplink Optical Wavelength 1310 nm Downlink 1550 Optical Connector Type SC-APC Optical Fiber type Single Mode, WDM (single strand of fiber per Remote Units) VSWR ≤ 1.
INSTALLATION GUIDE FOR UHF DAS Mechanical - MU Dimensions, H x W x D in(mm) 37.4x15.4x12.4 (950×390×315) Weight (without bracket) lb(kg) 77 (35) without filter, 140 (63.
INSTALLATION GUIDE FOR UHF DAS 3 3.1 INSTALLATION WARNINGS AND ALERTS Radio Frequency Energy There may be situations, particularly for workplace environments near high-powered RF sources, where recommended limits for safe exposure of human beings to RF energy could be exceeded. In such cases, restrictive measures or actions may be necessary to ensure the safe use of RF energy. High Voltage The equipment has been designed and constructed to prevent danger, as far as reasonably practicable.
INSTALLATION GUIDE FOR UHF DAS 3.2 SITE PLANNING CONSIDERATIONS 3.2.1 SITE PLANNING Site Considerations Outdoor equipment is designed to be waterproof, rainproof, and with snow protection. Temporary protection should be taken when the equipment enclosure is opened for installation or maintenance in an outdoor environment. The equipment must not be opened for installation or maintenance in bad weather (e.g.
INSTALLATION GUIDE FOR UHF DAS 3.2.2 INSTALLATION CHECKLIST ⚫ Working space available for installation and maintenance for each mounting arrangement. Ensure unrestricted airflow. ⚫ Ensure earth ground point is within reach of the ground wire. ⚫ Ensure a power source is within reach of the power cord and the power source has sufficient capacity. ⚫ Where appropriate, ensure unused RF connectors are terminated.
INSTALLATION GUIDE FOR UHF DAS 3.3 INSTALLATION PROCEDURES 3.3.1 GOODS INWARDS INSPECTION ⚫ Verify the number of packages received against the packing list. ⚫ Check all packages for external damage; report any external damage to the shipping courier. If there is damage, a shipping agent should be present before unpacking and inspecting the contents because damage during transit is the responsibility of the agent. ⚫ Open and check each package against the packing list.
INSTALLATION GUIDE FOR UHF DAS ⚫ Install the Mounting Rack to the wall. ⚫ Hang the equipment and secure the enclosure to the mounting rack. Mounting Rack Expansion Bolt M10X110 Chassis M8X25,Hexagon Head, Flat Gasket,Pad Pylons Screw Wall Figure 12: UHF PS DAS (MU and RU) Wall Mounting 3.3.5 DRIP-LOOP Comba recommends that every horizontal cable entry to the equipment forms a 'U' before its entry to the equipment.
INSTALLATION GUIDE FOR UHF DAS Figure 13: Dimension of Expansion Unit for Cabinet Mounting Cabinet installation: The installation cabinet is a standard cabinet. The size of the Expansion Unit is the equipment used in the 2U cabinet. The cabinet needs to have enough space to install the 2U cabinet, and have self-prepared structural parts with pallets and M6 buckle nuts.
INSTALLATION GUIDE FOR UHF DAS Figure 14: Expansion Unit Cabinet Mounting 3.3.
INSTALLATION GUIDE FOR UHF DAS ⚫ Remove the two mounting hangers from the Expansion Unit, adjust the direction according to Figure 9, and install it on the Expansion Unit. At the same time, install the remaining two mounting hangers attached in packing box on the Expansion Unit, as shown in Figure 16; Figure 16: The mounting hangers of Expansion Unit ⚫ On the selected wall, use a percussion drill and choose a suitable drill bit [φ8mm is recommended] to make a hole according to the size [465*246.
INSTALLATION GUIDE FOR UHF DAS ⚫ The installation is complete.
INSTALLATION GUIDE FOR UHF DAS 3.3.8 GROUNDING Ground Connection To ensure safe operation of the product, a ground (earth) connection is required. For single phase AC power source, the product must be grounded by connecting the “earth wire” of the power cord to the ground terminal of the AC supply.
INSTALLATION GUIDE FOR UHF DAS ⚫ Connect the negative pole of the external DC power supply to the terminal "-48V". SW Cable SW of MU(Backup Unit) RJ45 Cable Power cable 3.3.10 DC POWER AND MONITOR CABLE CONNECTION BETWEEN MU AND EU EU MU(Backup Unit) MU(Main Unit) Figure 20: DC power and Monitor cable connection ⚫ The power supply of the Expansion Unit is DC24V-DC48V, which can be directly supplied by the MU or DC48V independently.
INSTALLATION GUIDE FOR UHF DAS 3.3.11 DC POWER AND MONITOR CABLE CONNECTION BETWEEN EU AND EU Monitor Cable RJ45 Cable EU 2 EU 1 Power Cable Figure 21: DC power and Monitor cable connection for EU ⚫ Power Cable：OUT+→IN1+，OUT-→IN1-； ⚫ Monitor Cable：ADD_OUT→ADD_IN； ⚫ RJ45 Cable：AUX3→AUX1。 3.3.12 RF CABLE CONNECTION UHF PS DAS RF cables connection is as follows: ⚫ UHF PS DAS MU DT/DL IN port → Connects to the feeder cable from the donor antenna.
INSTALLATION GUIDE FOR UHF DAS 1 2 3 4 5 6 7 8 9 CLOSE1 COM1 OPEN1 CLOSE2 COM2 OPEN2 CLOSE3 COM3 OPEN3 1 2 3 4 5 6 7 8 9 ALM2 1 2 3 4 5 6 7 8 9 CLOSE4 COM4 OPEN4 CLOSE5 COM5 OPEN5 CLOSE5 COM5 OPEN5 1 2 3 4 5 6 7 8 9 EXT ALM1 EXT ALM2 EXT ALM3 EXT ALM4 GND GND GND GND NC 1 2 3 4 5 6 7 8 9 AUX 1 2 3 4 5 6 7 8 9 Dry contact status: Main Power Normal/Lost dry contact status: ENU STATUS : 1-0-0 Copyright - refer to title page Page 32
INSTALLATION GUIDE FOR UHF DAS Pin definition of ALM and AUX connectors: End of Section ENU STATUS : 1-0-0 Copyright - refer to title page Page 33
INSTALLATION GUIDE FOR UHF DAS 4 WEB GUI The UHF PS DAS can be monitored and controlled via the WEB GUI; use the following guide to finish system parameter setting and commissioning. 4.1 WEB GUI CONNECTION Step 1: Connect the OMT port to the PC RJ45 port OF MU with the supplied RJ45 cable to set up a physical connection. Step 2: Open a browser (suggested is the Firefox browser, display resolution is 1024×768), input Web GUI IP address: 192.168.8.101, click [Enter].
INSTALLATION GUIDE FOR UHF DAS 4.2 WEB GUI INTRODUCTION After log in, the Web GUI main screen will appear. Figure 24: Web GUI Main Screen On Comba Web GUI Home Screen, there are four Menu bars: [Dashboard], [Overview], [Tools], [Device]and [Management]. The [Dashboard] Screen shows system topology diagram. Dashboard Screen Figure 25: Dashboard Screen The [Tools] shows Commission, Scan Device, Reset, etc.
INSTALLATION GUIDE FOR UHF DAS Figure 26: Chanel Frequency Info The page shows Sub Band Information-Class B.
INSTALLATION GUIDE FOR UHF DAS 5 COMMISSIONING 5.1 PRE-COMMISSIONING TASKS After equipment installation, perform the following steps before equipment powering and commissioning: ⚫ Prepare the channel frequencies. ⚫ Verify that the expected voltage, current and power levels do not violate any ratings. ⚫ Visually inspect the power connection within the equipment. Ensure that the power cable is correctly and securely connected, including the grounding wire, RF cable and other cables.
INSTALLATION GUIDE FOR UHF DAS 6 MAINTENANCE The UHF PS DAS is designed for trouble-free operation and generally does not need maintenance. Maintenance activities should only be carried out by trained personnel. Periodic inspection of the UHF PS DAS equipment(s) is recommended - the recommended tasks includes: ⚫ Verify the direction and position of antennas. Re-align if necessary. ⚫ Make sure the cable connector and sealing on the RF cable connectors are not damaged.
INSTALLATION GUIDE FOR UHF DAS 7 7.1 APPENDICES APPENDIX A: TOOLS The following are the recommended list of tools for new installation and routine maintenance. ⚫ Slotted Screwdriver ⚫ Philips Screwdriver ⚫ Ring Spanner (Assorted size: 12~20mm) ⚫ Electrically operated drill and masonry drill bits 12mm ⚫ Anti-static Wrist Strap ⚫ Side Cutter ⚫ Frequency Counter (e.g. FLUKE PM6685R) ⚫ RF Power Meter (e.g.
INSTALLATION GUIDE FOR UHF DAS 7.2 APPENDIX B: DECLARATION OF HARMFUL SUBSTANCES AND CONTENT Product Name: Public Safety UHF DAS System Harmful substance and content of this product as below table shown: Part Name Harmful Substance Pb Hg Cd Cr (VI) PBB PBDE A × ○ ○ ○ ○ ○ B × ○ ○ ○ ○ ○ Note: Above table complies with SJ/T 11364. ○: Indicates that the harmful substance content in all homogeneous materials for corresponding part is under the limited requirement of GB/T 26572.
INSTALLATION GUIDE FOR UHF DAS 7.
INSTALLATION GUIDE FOR UHF DAS ENU STATUS : 1-0-0 Copyright - refer to title page Page 42
