PRELIMINARY 935-940 MHz System Integration Manual 044-05075 Rev.
PRELIMINARY Booster Amplifier Subrack System Integration Manual Table Of Contents Par. No. 1-1 1-2 1-3 1-3.1 1-3.2 1-4 1-5 Section 1 General Description Page No. Introduction....................................................................................................................................1-1 General Description ......................................................................................................................1-1 Functional And Physical Specifications ...............
PRELIMINARY Booster Amplifier Subrack System Integration Manual Table Of Contents (Continued) Par. No. 5-1 5-2 5-3 5-4 5-4.1 5-4.1.1 5-4.1.2 5-4.1.3 5-5 Section 5 Maintenance Page No. Introduction....................................................................................................................................5-1 Periodic Maintenance.....................................................................................................................
PRELIMINARY Booster Amplifier Subrack System Integration Manual List Of Illustrations (Continued) 2-1 2-7 4-1 4-2 5-1 J5 Alarm Connector .......................................................................................................................2-4 Front Panel POWER IN Connector ...............................................................................................2-5 System Block Diagram..................................................................................................
PRELIMINARY Booster Amplifier Subrack System Integration Manual Section 1. General Description 1-1 Introduction This manual contains information and procedures for the installation, operation, and maintenance of Powerwave Technologies, Inc.’s (Powerwave’s) Booster Amplifier Subrack (BAS) system. This manual is organized into the following sections: Section 1. General Description Section 2. Installation Section 3. Operating Instructions Section 4. Principles of Operation Section 5.
PRELIMINARY Booster Amplifier Subrack System Integration Manual Table 1-1 Truth Table Input Variable Attenuator Pin 1 Pin 2 Pin 3 Pin 4 Attenuation +5Vdc +5Vdc +5Vdc +5Vdc 0dB +5Vdc +5Vdc +5Vdc 0Vdc 1dB +5Vdc +5Vdc 0Vdc +5Vdc 2dB +5Vdc +0Vdc +5Vdc +5Vdc 4dB +5Vdc +5Vdc +5Vdc 0Vdc 8dB 0Vdc 0Vdc 0Vdc 0Vdc 15dB DIP SWITCH SOCKET VOLTAGE REGULATOR VARIABLE ATTENUATOR 1 1 2 2 3 3 4 4 5 5 OUTPUT +5Vdc Vout 1 2 6 GND GND GND 3 7 GND NC 4 8 GND NC 5 9
PRELIMINARY Booster Amplifier Subrack System Integration Manual 1-3.1 MCR20930-1-2 Subrack Specifications Table 1-2 MCR20930-1-2 Booster Amplifier Subrack System Specifications Frequency 935-940 MHz Gain +20 dBm, ± 0.2 dBm RF Input Power +31 dBm composite w/variable attenuator set to 0dB attenuation. +46 dBm composite w/variable attenuator set to 15 dB attenuation. RF Output Power: G3L-900-50-005 43.5 Watts (+46.39 dBm) nominal, 1 module 75.8 Watts (+48.80 dBm) nominal, 100 W (max.
PRELIMINARY Booster Amplifier Subrack System Integration Manual Table 1-3 Electrical Specifications for 2-Way Splitter Insertion Loss -33dB Min. (TBD on actual part) -48dB Max. Amplitude Balance ±0.2dB Max. Insertion Loss Flatness Over Frequency ±0.3dB Max. Input/Output Return Loss -20dB Min. Port to Port Phase Delta ±5 Degrees Max. Port to Port Isolation -20.0dB Min. IP3 (Input Power = 5dBm) -90dBc Min. Power Handling (Fixed Attenuator) 20 Watts Max.
PRELIMINARY Booster Amplifier Subrack System Integration Manual 1-3.2 GL3-900 Series Amplifier Sprecifications Table 1-5 G3L-900 Series Amplifier’s Electrical Specifications Frequency Range 935-940 MHz Channel Spacing 12.5 KHz Output Power: GL3-900-50-005 GL3-900-60-005 +47 dBm (50 Watts) nominal, 60 Watts (max.) +47.8 dBm (60 Watts) nominal, 75 Watts (max.) Input Power -10.0 dBm max. RF Gain GL3-900-50-005 GL3-900-60-005 +58.8 dB ±1.0 dB @ +27Vdc, 25 C. +58.8 dB ±1.
PRELIMINARY Booster Amplifier Subrack System Integration Manual Table 1-6 G3L-900 Series Amplifier’s Mechanical Specifications Items Specifications Physical Dimension of MCPA Front panel: 342.5mm(W) x 99mm(H) x 3mm(D) Body: 288.8mm(W) x 95.3mm(H) x 446mm(D) Weight Approximately 28.6 pounds (13 killograms) Connector Type D-sub, Hybrid, Plug-in Type RF connector: PKZ 26-0020 series straight plug type (Phoenix Co.) refers to attached drawing. MCPA Front Panel Switch CKT Breaker.
PRELIMINARY Booster Amplifier Subrack System Integration Manual Table 1-7 Environmental Specifications for G3L-900 Series Amplifiers Items Specifications Operating Temperature 0 to + 65 C Storage Temperature -40 to + 85 C Relative Humidity 5 to 90% RH (non-condensing) Operating Air Pressure 860 to 1060 mbar Shock 40 m/s s* @ 22 ms half sinusoid shock Pressure Integral forced air cooling must operate correctly at up to 0.3 inches back. Vibration Bellcore TR-NWT-000063 (1 m/s*s0.
PRELIMINARY 1-4 Booster Amplifier Subrack System Integration Manual Booster Amplifier Subrack (BAS) System Major Components Table 1-8 lists the model numbers and descriptions of the major components that comprise the BAS system and the document number (if available) of the manual related to each component.
PRELIMINARY Booster Amplifier Subrack System Integration Manual Figure 1-2 Booster Amplifier Subrack System – Top View 044-05075 Rev.
PRELIMINARY 044-05075 Rev.
PRELIMINARY Booster Amplifier Subrack System Integration Manual Section 2. Installation 2-1 Introduction This section contains unpacking, inspection, installation instructions and recommendations for the Booster Amplifier Subrack (BAS) System. It is important that the licensee perform the following tasks correctly and in good faith: 1. Carefully read all material in this section prior to equipment unpacking or installation. 2.
PRELIMINARY Booster Amplifier Subrack System Integration Manual Unpacking and Inspection This equipment (as applicable) has been operated, tested and calibrated at the factory. Carefully open and remove the MCPAs and model MCR20930-1-2 Booster Amplifier Subrack (BAS) from their respective containers. Retain all packing material that can be reassembled in the event that the unit must be returned to the factory.
PRELIMINARY Booster Amplifier Subrack System Integration Manual 2-5 Installation Instructions The model MCR20930-1-2 Booster Amplifier Subrack (BAS) is designed for use in a 2-way transceiver paging base station. The host enclosure must permit access to the subrack for; DC power, RF and monitor cables. As well as, proper ventilation. The BAS system is designed for an enclosure with at least 36 inches of depth.
PRELIMINARY Booster Amplifier Subrack System Integration Manual 2-6 Amplifier Module Power, Alarm, Control, and RF Connector The power, alarm, control, and RF connections on the amplifier are made through a 21WA4 male connector and are listed and described in table 2-1 below and in section 1, table 1-4.
PRELIMINARY Booster Amplifier Subrack System Integration Manual 2-7 Remote Control and Status Refer to table 2-3 for a description and list of remote control and status specifications for the MCPA.
PRELIMINARY Booster Amplifier Subrack System Integration Manual Table 2-4 Remote Control and Status Items RS-485 Physical Layer Asynchronous Packet Protocol Address Specifcations Each MCPA shall support an RS-485 multi-drop differential serial asynchronous communications link operation at 9600 baud, 1 bit start, 8 bit data, 1 bit parity, 1 bit stop bit. The host shall terminate the RS-485 differential receive and transmit lines with 120 ohms.
PRELIMINARY Booster Amplifier Subrack System Integration Manual Section 3. Operating Instructions 3-1 Introduction This section contains operating instructions for Powerwave’s Booster Amplifier Subrack (BAS) system. 3-2 Initial Start-Up and Operating Procedures To perform the initial start-up, proceed as follows: 1. Double check to ensure that all input and output cables are properly connected.
PRELIMINARY Booster Amplifier Subrack System Integration Manual Section 4. Principles of Operation 4-1 Introduction This section contains a functional description of Powerwave Technologies Inc.’s, Booster Amplifier Subrack (BAS) system. Refer to figure 4-1 for the system’s functional block diagram. 4-2 RF Input Signal The maximum input power for all carrier frequencies to the system should not exceed the limits specified in section 1, table 1-2.
PRELIMINARY Booster Amplifier Subrack System Integration Manual The distribution printed circuit board (PCB) assembly is used to distribute power to the BAS system’s internal components. The PCB circuit is a DC/DC converter designed to convert the +27 Vdc input to +12 Vdc and +15 Vdc. Refer to Appendix B for pinout location.
PRELIMINARY Booster Amplifier Subrack System Integration Manual 4-5.1 Predriver Amplifier The input of the amplifier uses two stages of class AB amplification which provide approximately 13.5 dB of gain in the 5 MHz frequency band from 935 MHz to 940 MHz. The amplifier operates on +27 Vdc. 4-5.2 Three-Stage Driver Amplifier The input of the amplifier uses three stages of class AB amplification which provide approximately 32 dB of gain in the 5 MHz frequency band from 935 MHz to 940 MHz.
PRELIMINARY Booster Amplifier Subrack System Integration Manual 4-6 Amplifier Module Cooling Although each amplifier contains it own heat sink, it is cooled by forced air. Two fans mounted on the front of the subrack are used for forced air cooling and redundancy. The fans draw air through the front of the system and exhaust hot air out the back. The fans are field replaceable.
PRELIMINARY Booster Amplifier Subrack System Integration Manual Section 5. Maintenance 5-1 Introduction This section contains periodic maintenance and performance test procedures for Powerwave’s Booster Amplifier Subrack (BAS) system. NOTE Check your sales order and equipment warranty before attempting to service or repair the unit. Do not break the seals on equipment under warranty or the warranty will be null and void.
PRELIMINARY Booster Amplifier Subrack System Integration Manual 5-4 Performance Test Performance testing should be conducted every 12 months to ensure that the amplifier system meets the operational specifications listed in Table 5-3. Also verify system performance after any amplifier module is replaced in the field. The test equipment required to perform the testing is listed in table 5-2, and the test setup is shown in figure 5-1.
PRELIMINARY Booster Amplifier Subrack System Integration Manual Figure 5-1 Amplifier Test Setup Diagram 044-05075 Rev.
PRELIMINARY Booster Amplifier Subrack System Integration Manual Table 5-3. Multi-Carrier Power Amplifier Test Data Sheet DATE _________________________________ MODULE S/N ___________________________ TEST CONDITIONS: Load and Source Impedance: 50 Ohms VSWR: < 1.2:1 Supply Voltage: +27 Vdc ±0.1 Vdc TEST RF Gain Spurious Emissions Gain Flatness Input Return Loss PASS SPECIFICATION Vcc = 27 Vdc PO = See table 1-5 Freq.
PRELIMINARY Booster Amplifier Subrack System Integration Manual 5-5 Field Replacement of the Module The G3L-900-50-005 and GL3-900-60-005 multi-carrier power amplifier module can be replaced in the field on site by a qualified technician with experience maintaining RF power amplifiers and similar equipment: To replace a power amplifier module, proceed as follows: 1. Set on/off switch on the front panel of the amplifier module to OFF (down). 2.
PRELIMINARY Booster Amplifier Subrack System Integration Manual Section 6. Troubleshooting 6-1 Introduction This section contains a list of problems which users have encountered and a few suggested actions that may correct the problem. If the suggested corrective action does not eliminate the problem, please contact your Powerwave field representative or the factory for further instructions. NOTE Check your sales order and equipment warranty before attempting to service or repair the unit.
PRELIMINARY Booster Amplifier Subrack System Integration Manual Appendix A.
PRELIMINARY Booster Amplifier Subrack System Integration Manual Appendix B.
PRELIMINARY Booster Amplifier Subrack System Integra- tion Appendix C Power Setting Procedure C-1 Power Setting Calculations: 1. Ensure the composite input power to the Powerwave MCR20930-1-2 is < 0 dBm. 2. Determine the required output level at the hatch plate per carrier (Analog, Digital, CDPD, and Setup Channels). Follow the example after step 5 below. 3. Determine the amount of loss between the subrack output and the hatch plate. A. Either the calculated value (Lucent uses 1.
PRELIMINARY Booster Amplifier Subrack System Integra- tion C-2 Power Setting Procedure: C o m b -30dB Splitter Example: Single Analog Ch Composite ~-1.7dB 5 to 20dB Gain Avail. MCPA 58.8dBg Comb. 111mW 20.45dBm 29.59dBm 910mW Maximum composite input level if gain is set to maximum (0 attenuation) DC 11.09W 40.45dBm 7.5W 38.75dBm 49.59dBm 91W 47.89dBm 61.52W Values in Boxes are given or known. The remaining values are calculated based on the given values. Figure C-1 Gain Block Example 1.
PRELIMINARY Booster Amplifier Subrack System Integra- tion 13. Key all the radios and measure the total maximum power. This power level should not exceed the rating for the MCR20930-1-2. If the power rating for the MCR20930-1-2 is exceeded, the intermodulation distortion performance of the amplifiers will suffer and the softwareoverpower protection feature of the MCR20930-1 will activate.
PRELIMINARY Booster Amplifier Subrack System Integra- tion Hatch Power (w) Formula a Convert Hatch Power Loss from Hatch Power @ Powerwave Convert Powerwave No. of to Powerwave Subrack (dBm) Subrack Power to Carriers to dBm Subrack (dB) watts b=10*LOG(a / 0.001) c d=b+c 10 e=x (d/10)*0.001 Total Power per Signal (watts) f g=ef Sector: Total Power Hatch Power (w) Formula a Convert Hatch Power Loss from Hatch Power @ Powerwave Convert Powerwave No.
