LMR250R01 Operating Manual (FCC ID: T7MLMR250R01C1) 2012. .
Content IMPORTANT NOTE: ..............................................................................................................................................................4 FCC RF Radiation Exposure Statement: ...................................................................................................................4 1. Introduction..............................................................................................................................................................
6.9. 6.8.4. LMR250R01 RU Status Retrieval and Control.................................................................. 24 6.8.5. Firmware download ...................................................................................................................... 28 Additional features ..................................................................................................................................... 29 6.9.1. ASD (Auto Shutdown) Function ...........................................
IMPORTANT NOTE: FCC RF Radiation Exposure Statement: This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20 centimeters between the radiator and your body.This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
1. Introduction 1.1. General Introduction As an equipment to clear RF shadows inevitably generated between the adjacent cells of LTE, LMR250R01C supports LTE and effectively repeats the signals between mobile terminals in weak coverage area and BTS. This equipment is LTE MIMO Optical DAS that support 700MHz band simultaneously, and it is designed to support LTE with MIMO.
[Network Configuration of LTE MIMO Optical DAS with DB DAS] 3. System Specifications 3.1. General Specifications Item LMR250R01 Enclosure Type Cabinet Dimension WHD 471.7(H) X 263.4(W) X 304.
3.2. System specifications 3.2.1. Frequency allocation 700MHz LTE Band 3.2.2.
4. Mechanical Specifications 4.1. LMR250R01C RU 4.1.1.
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4.1.2. Dimension RU System picture and Size 471.7(H) X 263.4(W) X 304.8(D) mm [OutSide] 4.1.3. [Inner Side] [Heat Sink Side] Mechanical Specification No Item Description Dimension: 471.7(H) X 263.4(W) X 304.
4.1.4. Description of LMR250R01C RU [Forward path] The LTE FWD MIMO0, MIMO1 and modem combined signals sent from the optic module of MHU is first divided into MIMO0, MIMO1 and modem signals at RFMUX in RU, then the FWD RF signals are amplified and filtered at the RFBS0 and RFBS1 module. The modem signal is conveyed to CPU of NMS controller through FSK modem. LTE signal is reduced by the Crest Factor passing through the CFR FPGA digital board inside RFBS0 and RFBS1.
4.1.5.
4.1.6. Module Composition of RU Module operational voltage table No Module Voltage Used 1 RFMUX 2 RF FWD Band Selector for MIMO0 (RFBS0) 5.5Vdc /6.5Vdc 3 RF FWD Band Selector for MIMO1 (RFBS1) 5.5Vdc /6.5Vdc 4 Slave Optical Transceiver Unit (SOU) 5 RF Modem (FSK Modem) 6 RU RVS COM for Signal combing (RRCOM) 7 RU RVS Band Selector for MIMO0 (RRBS0) 6.5Vdc 8 RU RVS Band Selector for MIMO1 (RRBS1) 6.
4.1.7. Function of Modules No Module Description [Divider] 1 Divides signals into RF and modem signals and sends to RFBS/RFCHS and FSK modem. [RFBS0] Controls the gain of TX0 path, filters FWD band, 2 controls the crest factor of TX0 signal, and performs the ALC function. Output of the module is sent to HPA. [RFBS1] Controls the gain of TX1 path, filters FWD band, 3 controls the crest factor of TX1 signal, and performs the ALC function. Output of the module is sent to HPA.
[TX HPA for MIMO0] 16Watt(42dBm) High power amplifier built-in 9 linearizer amplifies the TX0 signal to high power level and sends to RU ANT through the MIMO0 FE-Duplexer. [TX HPA for MIMO1] 16Watt(42dBm) High power amplifier built-in 10 linearizer amplifies the TX1 signal to high power level and sends to RU ANT through the MIMO1 FE-Duplexer. [FE-Duplexer for MIMO0] 11 Front end duplexer that passes through TX0 and RX0 frequency bands.
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5.
6. Administration Program (RptMan-LMR250R01) Administration program (RptMan-LMR250R01) is a management program for LMR250R01 and provides status monitoring and controlling functions to users. 6.1. System Requirement System: Desktop or laptop PC OS: Windows XP or later version Resolution: 1024 768 or more Connection Cable: 9 pin serial cable (cross type) 6.2. Cable connection The cable connection between repeater and PC (GUI program) is illustrated below.
6.3. Screen Section Description Displays the name of management program(GUI), i.e. RptMan- Window Title LMR250R01. Displays the type of equipment currently connected to the program (MHU or RU). Menu Bar Presents working menu for operators. It is associated with tool icons, which can activate the tool bar menus. Toolbar Presents icons (button type) for frequently used commands. User-friendly icons are used. Icons are activated or disabled as to the status of repeater.
6.4. Status Display Status of repeater is displayed by LED’s and values. LED Alarm: / On/Off: blinking indicates ALARM, ON, indicates NORMAL OFF Exception) for HPA, is ON, is OFF Value Units are not displayed. Value displayed in box ( ) Control The shape of mouse cursor is changed to on controllable parameters. The texts of controllable LED or values are displayed in BOLD font. 6.5. Control Policy System parameter can only be controlled one at a time.
for download MHU image download Downloads compressed firmware file to MHU equipment RU image download Downloads compressed firmware file to RU equipment Factory Setting Restores all parameter values to initial factory settings System action Not available Gain Setting Tx: set ATT to have 30dBm on the remote ANT output. Rx: set ATT to have 40dB of Rx total gain from RU to MHU including optical loss.
MHU Download Download MHU firmware files to MHU equipment. RU Download Download RU firmware files to RU equipment. MHU Factory Initialize MHU parameters to factory setting values. Setting RU Factory Restores RU parameters back to original factory setting Setting values. Help Shows version information 6.8. Program operation 6.8.1.
6.8.3.
Group Description Version: Firmware Versoin Type: Repeater unit type Name: ID of MHU for the communication Gain Setting TX: sets ATT to have 35dBm of output at the RU ANT Port RX: sets ATT to have 40dB gain of Rx path Tx/Rx Gain setting function carries out Tx/Rx gain setting including automatic optical loss compensation.
Group Description Version: Firmware version Type: Type of repeater Name: Set the Name, ID, Serial No.
LDPWR: Value of LD power (box) and status of LD (LED) LDLWR: Value/control of lower threshold of LD power (button) and lower alarm status of LD power (LED) PDPWR: Value of PD power (box) and status of PD (LED) PDLWR: Value/control of lower threshold of PD power (button) and lower alarm status (LED) RU parameters for TX0(MAIN)/TX1(MIMO) band are displayed by the tab selection. Each band has the identical items which can be monitored and controlled.
OUT LWR: Value/control of lower threshold of HPA output power(button), alarm status(LED) ALC: Set ALC level for HPA output, and shows ALC on/off status of function(LED). ASD(Auto Shutdown): ASD level(button), and shows ASD on/off status of function(LED). Protection On/Off: In order to protect RU from over input RVS(Rx) signal power. In case that input signal is more than IN UPR level, RU shuts down and LED is changed to RED.
6.8.5. Firmware download Firmware download is performed when system needs to be updated. Downloading improper images (executable file of repeater CPU) may cause harmful damages to equipment. The following steps should be taken for firmware download. ① Convert firmware source file (*.bin) to a downloadable file format. Main menu: Action → Image Compression, toolbar: ② Open a pop-up window showing the status of the target equipment for firmware download.
Download procedure Display selected file information Select file Perform operation Display progress of firmware download 6.9. Additional features 6.9.1. ASD (Auto Shutdown) Function 1. If the power level is above the shut down level for longer than 1 second, turn off HPA. 2. During shutdown state, monitor RU input power. If the level is below 5dB from shut down level, turn on HPA automatically. 3. Monitor HPA output power in normal operation, and monitor RU input power during shut down.
6.9.2. ALC (Auto Level Control) Function 1. If the power level reaches the ALC level, prevent from transmitting higher than ALC level by using ATT control. 2. By storing the existing ATT value, the ATT value before ALC can be reused even when the power is reduced.
