SC-DAS User Manual Document Reference: Version: V1.0 Document Status: Release 1 Issue Date: July.
REVISION HISTORY Version Issue Date V 1.0 July. 04, 2014 No. of Pages Initials Details of Revision Changes Original Technical Support SOLiD serial numbers must be available to authorize technical support and/or to establish a return authorization for defective units. The serial numbers are located on the back of the unit, as well as on the box in which they were delivered. Additional support information may be obtained by accessing the SOLiD Tehcnology, Inc. website at www.st.co.
Contents Section1 Safety & Certification Notice ...................................................................... 5 Section2 System Configuration and Functions ........................................................... 8 2.1 ROU (Remote Optic Unit) ................................................................................. 8 2.1.1 Specifications of ROU ................................................................................ 9 2.1.2 Block Diagram of ROU ............................
Contents of Figure Figure 2.1 – ROU Outer Look ............................................................................ 9 Figure 2.2 – ROU block diagram ....................................................................... 10 Figure 2.3 – ROU Inner Look ........................................................................... 11 Figure 2.4– PSU Outer Look............................................................................ 13 Figure 2.5– ROU Bottom Look .......................................
Section1 Safety & Certification Notice “Only qualified personnel should handle the DAS equipment. Any person involved in installation or service of the DAS should understand and follow these safety guidelines.” - Obey all general and regional installation and safety regulations relating to work on high voltage installations, as well as regulations covering correct use of tools and personal protective equipment.
- Do not use any solvents, chemicals, or cleaning solutions containing alcohol, ammonia, or abrasives on the DAS equipment. Alcohol may be used to clean fiber optic cabling ends and connectors. - To prevent electrical shock, switch the main power supply off prior to working with the DAS System or Fiber BDA. Never install or use electrical equipment in a wet location or during a lightning storm. - Do not look into the ends of any optical fiber or directly into the optical transceiver of any digital unit.
- Certification FCC: This equipment complies with the applicable sections of Title 47 CFR Parts 15,22,24,27 and 90 UL/CUL: This equipment complies with UL and CUL 1950-1 Standard for safety for information technology equipment,including electrical business equipment FDA/CDRH: This equipment uses a Class 1 LASER according to FDA/CDRH Rules.
Section2 System Configuration and Functions 2.1 ROU (Remote Optic Unit) ROU consist of two unit which one is MRU(Main Remote Unit) and the other is ARU(Add on Remote Unit). We simply called as ROU combination of MRU and ARU MRU receives TX optical signals from ODU or OEU and converts them into RF signals. The converted RF signals are amplified through High Power Amp in a corresponding RU, combined with Multiplexer and then radiated to the antenna port.
(a)MRU (b)ARU Figure 2.1 – ROU Outer Look 2.1.1 Specifications of ROU Item MRU Spec ARU Spec. Remark Size(mm) 300 x 200 x 140 300 x 200 x 140 mm Weight 6.6kg 6.
2.1.2 Block Diagram of ROU Figure 2.2 – ROU block diagram 2.1.
(b)ARU Figure 2.3 – ROU Inner Look No.
Remote Central Processor Unit 4 RCPU Controls signal of each unit Monitors BIU/ODU/OEU status through FSK modem communication Enable Wall Mount; 5 Enclosure Check if the system is normal, through the bottom panel LED 2.1.4 Function by unit Main RF Module/Add on RF Module (MRFM/ARFM)+BPF 1) When receiving TX signals from each band through R-Opt, MRFM/AFRM filters the signals and amplifies them with High Power Ampifier.
(a)AC/DC (b)DC/DC Figure 2.4– PSU Outer Look 3) Remote Optic(R-OPT) Remote Optic converts optical signals into RF signals and performs vice versa. With an FSK modem in it, the unit communicates with upper devices. It also has internal ATT to compensate for optical cable loss. Optical wavelength for TX path is 1310nm, for Rx path is 1550nm.
2.1.5 Bottom of ROU 1) Functions (a)MRU (b)ARU Figure 2.5– ROU Bottom Look Item 1. VHF/UHF ARU Port Description Remark Terminal for TX and RX RF ports of VHF and UHF Terminal for signal port to interface with VHF and UHF Visible LED indicator panel for checking if status is abnormal 2.LED PANEL USB Port for check and control device status through PC and laptop 3. Power Port 4.ARU/MRU Port 5.
(a)AC/DC (b)DC/DC Figure 2.
Top of ROU 1) Functions (a)MRU (b)ARU Figure 2.7 – ROU Bottom Look Item 1. RF Port 2. ANT Port 3.
Section3 System Installation & Operation 3.1 ROU Installation 3.1.1 ROU Enclosure installation ROU enclosure have two optional. One meets with NEMA4 standard and the other does not meet with NEMA4 which is water- and dirt-proof. ROU can be mounted on a Wall basically. Rack mounting is also possible to use extra unit. Extra units have three type and those will be explained on later chapter. ROU consist of MRU and ARU, their dimension is exactly same.
Figure 3.1 – Dimension used to install ROU on the WALL ROU Wall Mount Installation There are two way to install ROU on the wall. One is to install ROUs on the wall side by side, the other is 2layer installation that ARU install above MROU directly Type1 : Side by Side installation Turn M8 Fixing Screws by half on the wall and fully fix the screw with a Wall Mount Bracket on it. For convenience, the Wall Mount Bracket has fixing holes to let you easily mount an enclosure.
Figure 3.2 – ROU installation procedure side by side Put the enclosure with the M6 Wrench Bolt fixed on the fixing groove and fix the M6 Wrench Bolts into the remaining fixing holes. In this case, you will use 4 M6 Wrench Bolts in total except bolts used for the fixing groove.
Figure 3.3 – ROU installation diagram side by side For connecting cables between MRU and ARU conveniently, MRU should install on left side of ARU.
The following shows dimension of the fixing point for the 2layer bracket. Figure 3.
ROU Rack Mount Installation There are two way to install on a rack. One is to install ROUs on the rack vertically, the other is to install ROUs on the rack horizontally Type1 : Vertical installation on the rack For vertcal installation, vertical bracket needs. First, install bracket for vertical installation on the rack Second, mount MRU on the left side of the installed bracket Third, mount ARU on the right side of the installed bracket Completed installation diagram is as follows Figure 3.
Figure 3.7 – ROU installation diagram for vertical rack Type2 : Horizontal installation on the rack For Horizontal installation, horizontal bracket needs.
Figure 3.8 – ROU installation procedure for horizontal rack The following shows dimension of the fixing point for vertical installation Figure 3.
ROU components ROU has the following components: No.
3.1.3 Optical Cabling MRU makes optical-electronic conversion of TX signals from upper ODU and OEU and makes electronic- optical conversion of RX signals. MRU has one optical module in it. As WDM is installed in the R_OPT module, two pieces of wavelength (TX:1310nm, RX:1550nm) can be sent/received with one optical strand at the same time. MRU has SC/APC of optical adaptor type. For optical adaptor, SC/APC type can be used.
Figure 3.12 – ROU GND Port Look - Take off the GND terminal port from enclosure and connect to ground cable, then fix it the position of enclosure again - The opposite end of the ground cable should connect to the communication GND of building - The ground lug is designed meeting the SQ5.5 standard 3.1.5 Coaxial cable and Antenna Connection - The coaxial cables which are connected to antenna distribued network connect to antenna port of ROU.
3.1.6 Information of LED of ROU ROU has LED pannel at the bottom of ROU. The LED indicator is as below Description LED Power is not supplied ON Power is supplied. Normal Operation ALM Abnormal Operation R-OPT is normal operation OPT R-OPT is abnormal Operation TXD Twinkle when data send to upper unit RXD Twinkle when data receive from upper unit Figure 3.14 – ROU LED indicator information 3.1.
3.1.
700MHz Long Term Evolution Typical Remarks Parameters TX RX Bandwidth 29MHz 28MHz Output power +24dBm +0dBm System Gain 44dB 50dB input and output impedances 50 ohm Confidential & Proprietary 30/30 Total 50 ohm SC-DAS
