Intelibs, Inc. iDAS RHU Product Manual RHU Operational Manual for GPS-iDAS application Version: 1.
Contents 1 Introduction .......................................................................................................................................... 6 2 Product Description .............................................................................................................................. 9 3 2.1 Network configuration .................................................................................................................. 9 2.2 External interface ports ...........
4.2.4 5 Parameters details in SRU window ..................................................................................... 35 4.3 Firmware download .................................................................................................................... 36 4.4 Additional function of RHU ......................................................................................................... 36 4.4.1 ASD (Auto Shutdown) Function ......................................................
FCC WARNING This equipment generates or uses radio frequency energy. Changes or modifications to this equipment may cause harmful interference unless the modifications are expressly approved in the instruction manual. The user could lose the authority to operate this equipment if an unauthorized change or modification is made. This is NOT a CONSUMER device. It is designed for installation by FCC LICENSEES and QUALIFIED INSTALLER.
CAUTION Any changes or modifications not expressly approved by the manufacturer could void the user's authority to operate the equipment. This equipment is intended for use only with Intelibs Hybrid DAS systems. Important health and safety precautions When using this product, the safety precautions below must be taken to avoid possible legal liabilities and damages. Retain and follow all product safety and operating instructions.
1 Introduction Radio Hub Unit (RHU) is a part of the Hybrid Distributed Antenna Systems (HDAS) to provide RF link solution between RF Source and Remote Unit (RU). This RHU receives RF signal over-the-air or wire line and this unit filters, amplifies and converts RF signal into optic signal and transmits to child unit such as FHU and RU through single mode fiber.
Figure 1-1 RHU-RU connection configuration Intelibs, Inc.
Figure 1-2 Typical iDAS RHU-FHU-SRU/MRU network diagram Intelibs, Inc.
2 Product Description Radio Hub Unit (RHU) is a part of the Distributed Antenna System (DAS) to provide link between RF Source and DAS RU, to fill coverage gaps and to enhance the quality of service of extending coverage of mobile service. As shown in Figure 2-1, RHU is a compact platform with the natural heat convection. As unified form factor, RHU services multiple technologies on a single platform with 700/850/1900/2100MHz Quadruple-band and GPS L1 band frequencies reception.
RHU systems with different operating frequency band can be interconnected via over-the-air or RF Head-End unit. Typical RHU-FHU-SRU/MRU/HRU network diagram is depicted in figure 1-2. 2.2 External interface ports RHU has all interface connections at bottom side of an enclosure, which includes fiber, antennas and power port. Figure 2-3 shows the bottom side of RHU system. Figure 2-2 Bottom view of RHU system Table 2-2 Interface ports No. Port Connector type Description 1 MOBILE 1 ~ 4 4.
2.3 Configuration of RHU inside RHU system is comprised of several internal modules such as Radio Hub Modules (RHM), GPS Front-End Module (GPS FEM), optic module, and controller modules. Figure 2-3 shows inside of RHU system. Figure 2-3 Module configuration of RHU inside Intelibs, Inc.
Table 2-3 RHU system’s modules Module 700 RHM 850 RHM 1900 RHM 2100 RHM GPS FEM RHOM Picture Description [Down Link] This module filters 700 DL RF signal from link antenna, amplifies with low noise, filters A/B/C/UpperC sub-band signals by digital band pass filters and transmits the selected 700 DL RF signal to optical module.
RF Controller (RFCU) This module controls and monitors all parameters of 700/850/1900/ AWS RHM and RHOM which related to 4-band DL/UL RF circuits. GPS Controller (GPSCU) This module manages all parameters of RF circuits of two GPS path. PoE Splitter ACDC Converter This module receives DC voltage through the Ethernet cable, converts into 24VDC and supplies DC voltage to each module. RHU can use one of PoE Splitter and ACDC converter according to installation environment.
2.4 Mechanical Drawing Figure 2-4 RHU Outside drawing Figure 2-5 RHU dimension Intelibs, Inc.
Figure 2-6 RHU Inside drawing 2.5 Technical Specifications 2.5.1 General specifications Table 2-4 General Specifications Specification Enclosure Type Dimension (mm) Weight (Kg) Power Supply Power Connector ANT RF In/Out Port Optic Connector Type Optic Wavelength Operating Temperature 2.5.2 Values Cabinet, Natural convection type 14.0(H) X 17.5(W) X 12(D) inch 70.5lb(32 Kg) @ 4band 120VAC, 60Hz PoE 48 ~ 56VDC MS Connecter for AC Input Cable gland for PoE Input 4.
2.5.2.2 850 MHz band 817 MHz Uplink Figure 2-9 Frequency allocation of 850 MHz band 862 MHz Downlink 2.5.2.3 1900 MHz band 2.5.2.4 AWS band Up Link Intelibs, Inc.
Down Link 2.5.2.5 GPS L1 Band - 1575.42 +/- 10MHz band 2.5.3 RHU RF specifications Table 2-5 RF specifications Parameters Frequency Values Band 700MHz 850MHz 1900MHz AWS Intelibs, Inc.
Bandwidth Channel filter BW RF port VSWR Frequency Stability System Delay Isolation Margin detect Fiber Connector Any 30MHz BW in each band Combination of 1.25MHz BW DL -60 ~ -30dBm/total UL 0dBm/total max. DL 0dBm/total UL 20dBm/total DL 45dB typ. by 1dB step UL 45dB typ. by 1dB step 2dBp-p 3dB max. DL Less than 6dB UL Less than -88dBm/Hz DL 1310nm / UL 1550nm 5dBo max. More than 40dBc More than 100dBc More than 100dBc 1.5: 1 max. ±0.02 ppm 3.0usec max.
Locate the equipment with the space for the sufficient airflow to prevent build-up from the overheating. Do not compromise the amount of airflow required for safe operation of the equipment. Verify the power connection and Fiber cables prior to turning on the systems. WARNING: Equipment loading must be verified prior to mounting the equipment on the wall or 19” rack. 3.1.1 General Safety Precautions The following precautions apply to the RHU: The units have no user-serviceable parts.
3.2 Installation Tools Table 3-1 Installation tools Torque Wrench1 Torque Wrench 2 ESD Gloves Shrink Tubes LC/UPCOptic Fiber, 10m Ground wire line 5ea of ANT RF Cable Wire Stripper & Cutter Digital Multi-meter Screw Driver Optic connector cleaner Heat Gun Wideband Link Antennas Fixing bolts and nuts 3.3 Item Check List Check that all the following items have been included with the box delivered. If anything is missing, please contact Intelibs.
Step 1 • • Mark the upper position by using the wall mount bracket drawing paper. Mark the lower position by using the wall mount bracket drawing paper. Figure 3-1 Mark the installation position Step 2 • Install wall mount bracket to the wall using 4 anchor bolts. Figure 3-2 Install the wall mount bracket Step 3 Intelibs, Inc.
• Install the RHU system as figure below. Figure 3-3 Install the RHU to the installed wall mount bracket 3.5 Link (Donor) Antenna RHU has six antenna ports. 4 ports of them are the ports for 700MHz/850MHz/1900MHz/2100MHz antennas and the other two/four ports are the ports for two/four GPS antennas. Connect each 4.3-10 male antenna cable to the desired antenna port, as Figure below. Intelibs, Inc.
Figure 3-4 Link/GPS Antenna port Figure 3-5(a) 4Band Link Antenna connection diagram Intelibs, Inc.
Figure 3-5(b) 2Band Link Antenna and 4CH GPS Antenna connection diagram 3.6 Power cable 1. The case of PoE Input 1) Please release gland cap and put Ethernet cable into cap and water protection rubber ring as following picture. 2) Reassemble cable gland to insert Ethernet cable into RHU enclosure as follows. Intelibs, Inc.
3) Please connect Ethernet cable to RJ-45 connector of RHU inside as following picture. And you can find LEDs are turned on if Ethernet cable has DC power. Figure 3-6 Power cable connection (PoE type) 2. The case of AC Input Connect MS connector-type power cable which is supplied with RHU to the “AC POWER” port. When connecting the end terminal, align connector at latch and hole position as figure below. Figure 3-7Power cable connection (AC type) Intelibs, Inc.
3.7 Optic cable RHU provides Six optic ports. Fiber_1 and Fiber_2 are the ports to connect with FHU/SRU/MRU, and Fiber_3 to Fiber_6 are the ports to connect with GPS BEUs. The type of fiber connector is all LC/UPC type connector as figure below. [LC/UPC type fiber connector] Figure 3-8 LC/UPC fiber connector connection Connect the fiber connector to the desired optic port in RHU.
Figure 3-9 Fiber cable connection on RHU Intelibs, Inc.
4 Configuration and Maintenance RHU can be configured in three ways via remote internet connection or local serial port connection. Local management interface through the internet and serial connection. Web interface through the internet SNMP interface through the internet Master Unit is a remote management system that provides SNMP v3 and Web interface, and maintains all functions of iDAS system including configurations, monitoring, and real time alarm reporting.
Figure 4-2 RHU-MRU network Figure 4-2 is an example of DAS network using LMT to configure DAS system. Following sections describes how to configure and manage RHU system using LMT via serial/LAN connection or using Web Interface via Internet. 4.1 Configuring RHU using LMT If one of serial connection has been established, LMT is ready to start. Launch the Local Management application by clicking the icon “iDAS” and refer to following information. 4.1.
2. After following screen is appeared, please select parameters on this screen as refer to the table below. Function Establishing communication between GUI and repeater Method Click Description button in Menu bar of GUI program Combo box to select the com port (COM1, COM2, …) which serial port is Port set up in Laptop Repeater type Select the “iDAS” system Connected device Select “RHU-Master” if you want to connect to RHU unit 4.1.4 Main Window of LMT GUI Intelibs, Inc.
Section Description Window Title Displays the name and version of management program (GUI) Displays the type of equipment currently connected to the program (RHU or SRU). Menu Bar Presents the working menu for operation. It is associated with tool icons which can activate the tool bar menus. , Work Space Status information and control functions are provided with new window screen of RHU and SRU. 4.1.4.
Control The texts of controllable LED or values are displayed in BOLD font. 4.1.4.2 Control Policy of LMT GUI Basically, user can change one item at a time. Click a controllable item (text, or button) To go to Control Mode, press button. Then this button will be changed to . Please “enter” key to confirm the control action after changing any parameter you want to change. 4.1.4.
4.2.2 Parameters details in RHU window Group Description Version: Firmware Version S/N: RHU Serial Number Unit Name: RHU Model Number: Model number of RHU Up Time: operating time and date User Connect: Connection status between Laptop and RHU PWR Alarm: DC power alarm Temp: Current temperature of the inside of unit Upper Temp: set the upper threshold value of temperature(Value) and alarm status (LED) Band screen selection TAB.
Digital Filter monitoring and control item of each band Filter Enable: Digital filter Enable set PLL: FPGA PLL lock alarm Module ID: Digital filter ID information of FPGA. FPGA Ver.
4.2.3 SRU window in GUI screen 4.2.4 Parameters details in SRU window Group Description Version: Firmware version Type: Type of RU unit Name: Set the Name, ID, Serial No.
SRU parameter screen selection for PCS/Cellular band TAB. Path Use: Path use/not use selection TOTATT: Total attenuation value that is applied to DL path [TOTATT= USRATT + ALCATT + TCATT] USRATT: User attenuation set value for user gain set ALCATT: Attenuation value that controls DL gain automatically to maintain output level under ALC level when HPA output is higher than ALC level.
Longer than 1 sec, HPA off 4.4.2 ALC (Auto Limit level Control) Function 1. If UL output power level of RHU reaches the ALC level, RHU decrease the output power to maintain ALC level automatically. 2. When power level goes down under ALC level, RHU increase output power until ALC ATT is 0 by 500msec ~ 1sec speed. ALC Level Power ALC ATT = 0 4.4.3 ALC ATT = δ decrease ALC ATT ALC ATT = 0 AGC (Auto Gain Control) Function 1.
input power is increase RHU decrease gain to have same output power automatically. 3. RHU works AGC function by 500msec ~ 1sec speed. ALC Level Power AGC= 0 AGC=δ AGC=0 AGC=0 AGC=δ 4.4.4 Sub-band selection Function RHU can select sub-band up to 10 bands in 65MHz bandwidth using digital filter function. These subband filters have very sharp cut-off characteristics and RHU can provide the signal of selected band of 65MHz BW to coverage area.
5 Human RF Exposure and Antenna placement guide Actual distance is determined upon gain of antenna used. Please maintain a minimum safe distance of at least 40 cm while operating near the donor antennas with the maximum permissive antenna gain up to 18 dBi and 8.45 dBi for the 1710-1755 MHz frequency band. Note: According to Part 27.50 (d)(4), fixed stations operating in the 1710-1755 MHz band are limited to a maximum antenna height of 10 meters above ground. Intelibs, Inc.
Limited Warranty Intelibs, Inc. (“Intelibs”) offers a standard two year warranty from defects in material and installation.
Index 850 MHz band .................................................. 18 Bluetooth ......................................................... 30 DAS management network .............................. 30 Duplex .............................................................. 25 Link Antenna connection ........................... 25, 26 LMT .................................................................. 30 Local management interface ........................... 30 MU ........................................
Contact: supports@intelibs.com Address: Intelibs, Inc. 1500 Stony Brook road, Stony Brook, NY 11794 Web: http://www.intelibs.com Intelibs, Inc.
