8 Channel Bi-Directional Booster Amplifier 50289-BDA Operations, Installation and Maintenance Instruction Manual Model 50289-BDA ALL INFORMATION CONTAINED IN THIS DOCUMENT IS PROPRIETARY TO AeroComm, Inc. AND SHALL NOT RELEASED, DISCLOSED, USED, OR DUPLICATED FOR ANY PURPOSE OTHER THAN EVALUATION, INSPECTION, OR MAINTENANCE OF EQUIPMENT DELINEATED HEREIN.
800MHz Bi-directional Booster Amplifier 50289-BDA
800MHz BDA Model 50289-BDA Specifications Frequency Range: Pre-selectors: Talk-Out, Outband: Talk-In, Inband: Channel Spacing: Channel Bandwidth: Phase Noise: RF Frequency Accuracy: Adjacent Channel Selectivity: RF Output Power (to cable): RF Output Power (to antenna): Variation of Output Power with Input Level: Max Passband Ripple (full band): Max Passband Ripple (100Khz segment): Amplifier Input Port Burnout (no damage I/O segment): Amplifier Output Damage (no damages): Reliability: Intermodulation/Crossm
800MHz BDA Model 50289-BDA Specifications Continue: DC Power Supply: No.
TABLE OF CONTENTS SECTION I INSTALLATION............................................................................................................... 9 INTRODUCTION .............................................................................................................................. 9 DETAILED INSTALLATION INSTRUCTIONS ............................................................................... 9 MECHANICAL INSTALLATION OF THE CABINETS............................................................
THE LOW BAND BA: ..................................................................................................................... 38 SECTION VI USER’S GUIDE ............................................................................................................ 43 OVERVIEW..................................................................................................................................... 43 PROGRAM INSTALLATION.........................................................................
Table of Figures Figure 1. Thermostat & Electrical Power In stallation ...........................10 ...........................10 Figure 2. External RF Cabling Installation .................................... .................................... 11 Figure 3. Equipment Cabinet Configuration as Shipped ...........................12 ...........................12 Figure 4. Battery Charger Module ........ 13 Figure 5.
Figure 33. 800 MHz-Linc screen ...........
SECTION I INSTALLATION INTRODUCTION AeroComm strongly recommends that the user install the two rack enclosures for the system by bolting them down onto level concrete flooring. The user must equip the concrete floor with appropriate anchors and drill the floor of the cabinet to match. AeroComm recommends stainless steel wedge anchors with a minimum diameter of 3/8” and a thread length of 2 ¼”.
AC POWER CONNECTION Install AC power conduit. Each cabinet is configured with clamping-ring hardware suitable for attachment of ½” electrical conduit. Each cabinet is fitted with an electrical junction box inside at the top rear of the cabinet. Remove the cover plate and connect the AC source lines to the appropriate terminals in the junction box. Refer to figure 1. Re-install the cover plate. Figure 1.
Figure 2. External RF Cabling Installation TO ROOF ANTENNA TO RADIATING CABLE TALK IN HIGH BAND TALK OUT LOW BAND CONNECT EXTERNAL RF CABLING Connect the two cabinets to one another using low-loss ½” heli-axial cable as shown in the Figure 2 above. Connect the cable leading to the roof antenna to the type N connector on the top right (when viewed from the front) of the “Talk In” / High Band cabinet.
Figure 3. Equipment as Shipped Cabinet Configuration WARNING THE DUAL POWER SUPPLY MODULES WEIGH APPROXIMATELY 60 POUNDS. THE SINGLE POWER SUPPLY MODULE WEIGHS ABOUT 40 POUNDS. THE BATTERY CHARGER MODULE WEIGHS ABOUT 15 POUNDS. TWO PEOPLE SHOULD LIFT THE MODULES TOGETHER TO PREVENT INJURY DURING INSTALLATION INTO THE CABINETS.
2. Locate the dual power supply modules (2 ea.), the single power supply module (1 ea.) and the battery charger module (1 ea.). The modules are distinguished by the following features: • The dual power supply modules have two large gold power supplies (made by Acopian) mounted side-by-side in the chassis. • The single power supply module has a single gold Acopian power supply mounted on the left side of the chassis (when viewed from the front).
4. Attach the power connections on the rear of the chassis. Refer to Figure 5 below. Note that there are two connections that must be made on the left side of the module (as viewed from the front). The longer harness lead in the cabinet should be attached to the connector further in from the left edge of the cabinet. 5. Load the other dual power supply into the Low Band equipment cabinet, directly above the LNA / 8-Way Splitter Module. 6. Attach the power connections on the rear of the chassis as in step 4.
Figure 5. Power Connections on the Rear the Power Supply and Charger Module as viewed from the top) 3-PIN FEMALE CIRCULAR CONNECTORS AMP206425-1 3-PIN MALE CIRCULAR CONNECTORS AMP206036-1 (DC POWER OUTPUT) J1 J2 of ( (AC POWER INPUT) J3 DUAL POWER SUPPLY J1 J3 SINGLE POWER SUPPLY J3 BATTERY CHARGER NOTE ALL FREQUENCY DEPENDENT MODULES FOLLOW A FIXED SERIALNUMBER CONVENTION. LOW-BAND MODULES ARE HAVE “1XX” SERIAL NUMBERS AND HIGH-BAND MODULES ARE HAVE “2XX" SERIAL NUMBERS.
Figure 6. Power & Signal Connections e Rear of the Power Amplifier (as viewed from the 7-PIN MALE CIRCULAR CONNECTOR (DC POWER) AMP 206137-1 on th top) 9-PIN MALE CIRCULAR CONNECTOR (SIGNAL) AMP 206705-1 POWER AMPLIFIER INSTALLING THE IF CHANNEL MODULES The channel slots have been factory preset to be installed in order, from low to high frequency, from left to right, in the VME-style IF Channel rack located in lower middle of each cabinet.
Table 1. Factory Preset IF Channel Modu le Frequencies and Jumper Settings LOW BAND / TALK-OUT Jumper Frequency Chassis Setting (MHz) Position JP1 821.21250 Far left JP2 821.81250 2nd from rd left JP3 822.37500 3 from JP4 822.87500 left Left center JP5 823.01250 Right JP6 823.55000 center 3rd from nd right JP7 823.60000 2 from JP8 823.91250 right Far right Figure 7. IF Channel HIGH BAND / TALK-IN Jumper Frequency Chassis Setting (MHz) Position JP1 866.21250 Far left JP2 866.81250 2nd from rd JP3 867.
1. Locate the IF Channel Modules for the Low Band equipment cabinet. 2. Verify the frequencies and jumper settings as per Table 1. Re-install jumpers, if necessary. 3. Slide the IF Channel Modules into the IF channel rack in the order described above. Secure the self-retaining thumbscrews at the top & bottom of each IF Channel Module. 4. Locate the IF Channel Modules for the High Band equipment cabinet. Repeat steps 2 & 3.
Figure 8. Semi-Rigid Cables for Connecting IF Channel Modules & 8-Way Splitter (dimensions are approximate) 12” 2” SMA Male SMA Male Locate the 16 SMA male to type-N male semi-rigid cables formed as shown in Figure 10. Note that there are two types; these cables are used to connect the IF Channel Modules to the Power Amplifier Module.
Figure ng 9.
Figure 10. Semi-Rigid Cables Connecting Channel Modules & Power Amplifier IF (dimensions are approximate) 14” SIDE VIEW SMA Male 2” Type-N Male Type I 20” 2” SIDE VIEW Type-N Male SMA Male 3.
DUPLEXER CABLING (CONTINUED) Locate the two long type-N male to male semi-rigid cables formed as shown in Figure 11. These cables are used to connect the Duplexer Modules to the 8-Way Splitters. Install one cable in the High Band cabinet, connecting the Duplexer OUT port to the 8Way Splitter IN port. When installed properly, the cable runs down the right side of the cabinet. Refer again to the photo of the finished cable installation shown in Figure 11.
POWER AMPLIFIER CABLING 1. Locate the two 16” long type-N male to male semi-rigid cables formed as shown in Figure 12. These cables are used to connect the Power Amplifiers to the output feedthru connectors on the lower right side of the cabinets. 2. Install one cable in the High Band cabinet, connecting the Power Amplifier OUT port to the feed-thru connector on the lower right side of the cabinet. 3. Install the other cable in the Low Band cabinet in the same manner. Figure 12.
BATTERY CONNECTION CAUTION PRIOR TO CONNECTING THE BACKUP BATTERIES, ENSURE THE CIRCUIT BREAKERS “BANK 1” “BANK 2” AND “BANK 3” ON THE BATTERY STATUS PANEL ARE IN THE OFF POSITION (PULLED OUT SO THE WHITE BAND SHOWS). 1. Locate the mating circular 4-pin male battery connectors provided with the units. 2. Solder the battery leads to the connectors per drawing number 50483-01-30. 3. Attach the battery leads to the top of the cabinets as shown in Figure 13 below. Figure 13.
POWER UP SEQUENCE NOTE THE POWER UP SEQUENCE DESCRIBED HEREIN, WAS DEVELOPED TO AVOID STARTUP IN BATTERY BACKUP MODE AND TO PREVENT OVERLOADING A 15 AMP AC SOURCE CIRCUIT. THE KEY ACTIONS ARE TWO: (1) TURN ON THE POWER SUPPLIES ONE AT A TIME TO AVOID EXCESSIVE INRUSH CURRENT, AND (2) TURN ON THE POWER SUPPLIES BEFORE THE BATTERY CHARGER AND BATTERY BACKUP SYSTEM TO AVOID STARTUP IN BATTERY BACKUP MODE. THE DETAILED PROCEDURE PROVIDED BELOW IS FOR THE USER’S CONVENIENCE. 1.
Figure 14. Main Power Switches for Power upplies and Battery Status Panel Figure 15.
SECTION II OPERATION PROCEDURES 50289-BDA USE OR DISCLOSURE OF DATA CONTAINED ON THIS PAGE IS SUBJECT TO THE RESTRICTION ON THE TITLE PAGE OF THIS MANUAL 27
The Eight-channel, Bi-Directional 800 MHz-Band, RF Distribution Amplifier system requires no regular operator intervention to perform its function. The system is accompanied by two software programs, the User’s software and the Technician’s software. All adjustments to the system are made using these software packages. The User’s software allows the operator to change channel frequencies, channel time-out settings, and channel keying mode.
CHANGING THE TIME-OUT DURATION The time-out duration is how long a channel can be held open (keyed on) for a retransmission. This feature prevents a channel from being disabled by an inadvertent or intentional “key and hold” action without any voice communication. The time-out duration can be up from 1 second to 99 minutes 59 seconds in 1 second intervals. The time-out duration can be disabled by setting it to 00 minutes 00 seconds.
SETTING THE FREQUENCY Each module’s frequency may be set using the User’s software. The User’s software allow the operator to change the frequency of the module to any other frequency within the operating band. CHANGING THE CHANNEL ID The channel ID is an optional software upgrade to the 800 MHz-Linc software.. The channel ID identifies each channel module. This is useful if modules are moved around or a new module is installed in place of a defective one. Normal channel IDs are depicted in Figure 17.
SECTION III MAINTENANCE BDA MAINTENANCE: The 8 Channel Booster Amplifier, BDA, is designed for unattended operations requiring minimal maintenance. General maintenance consists of the cleaning/replacement of the intake/exhaust filters, equipment inspection and operational tests. It is recommended the routine maintenance be accomplished monthly and the schedule revised to meet the requirements of your unique installation. Equipment tune-up and alignment is required only if indicated by the operational tests.
SECTION IV RECOMMENDED SPARES Card extender P/N 50483-03-32 Battery Backup P/N 50483-02-33 RF Power Amplifier /8 Way Combiner P/N 50483-02-09-01 (Low Band) P/N 50483-02-09-02 (High Band) Channel Card P/N 50483-02-12 50289-BDA USE OR DISCLOSURE OF DATA CONTAINED ON THIS PAGE IS SUBJECT TO THE RESTRICTION ON THE TITLE PAGE OF THIS MANUAL 32
SECTION V THEORY OF OPERATION THEORY OF OPERATION The eight channel bi-directional amplifier uses 16 channels of synchronized down-up conversions. The multi-channel booster is divided into two independent 8-channel systems (8 high band and 8 low band) for full duplex operations. Inbound signals, talk-in, are received at the roof antenna, 8 selected frequencies are processed (filtering and amplification), and rebroadcast on radiating cable.
Figure 18.
Figure 19.
DUPLEXER: The duplexer allows for full duplex operation, simultaneous transmit and receive into a common antenna port. The pass/reject filtering of the duplexer provides band preselection, minimal insertion loss between the antenna port to the two ports, transmit and receive ports, and provides high isolation between the transmit and receive ports. For proper operations, the talk-in booster amp, BA, is connected to the roof antenna, and the talk-out BA to the radiating cable.
IF CHANNEL MODULE: The IF module consists of 5 compartments: • The RF amplifier provides for additional channel pre-selection of the received RF signal. • The down conversion of the signal received to an IF of 90Mhz, two cascade crystal filters provides a high degree of filtering • The hard limiting of the IF eliminates the requirements of an AGC loop. An analog RSSI from the IF is compared to a threshold setting to produce a logic output, RSSI KEY.
DC POWER DISTRIBUTION/BATTERY BACKUP: The DC power requirements of the channel modules and their associated RF power amplifiers are distributed among multiple power ‘banks’ (VCC1, VCC2, and VCC3). Dividing the power requirements among multiple power supplies prevents a complete shut down due to ‘a’ power supply failure. In addition, it allows for an effective switch over to battery operations. (Refer to Figure 20): The BA is configured with up to 3 power supplies.
In the low band BA, due to the requirements of only two power supplies, the ‘3 state’ battery charger is installed. The output of the battery charger is wire directly to a second pair of pins of the ‘battery input’ connector (located on the top of the enclosure). The output of the charger is terminated directly at the batteries; there are no internal connections between the charger to the battery status panel or PDU.
Figure 20.
Figure 21.
Figure 22.
SECTION VI USER’S GUIDE 800MHz-Linc Version 1.0 OVERVIEW This software, 800MHz-Linc is designed for the control and configuration of each channel of the 8-channel Directional Amplifier (BDA). It allows the users to set the duration of time-out, and mode. PROGRAM INSTALLATION To install/reinstall the software: 1. Insert the AeroComm Inc. CD-ROM and locate the Setup program on the CD-ROM. 2. The Setup software will prompt the user to click ok, then click on the Install icon. 3.
MAIN SCREEN Figure 23 below is the main working screen used to configure the channel Time Out and Mode setting. The main screen of the software is displayed below. It has a picture of the channel on the left with the lights having the same on or off status as those on the channel. Every change of the lights on the channel is reproduced in the main screen’s picture. Figure 23.
COMMUNICATION CONNECTION This software automatically checks the condition of its communication connection with the intended channel not only when it is started but also continuously every ten seconds. If the software does not receive a response from the channel, a warning message is displayed and indicated in Figure 24 below. The user is given three choices: Abort exits the software; Retry re-checks the connection, and Ignore skips the connection test and opens the main screen.
TIME-OUT DURATION The time-out duration is how long a channel can be held open (keyed on) for a retransmission. An inadvertent or intentional “key and hold” action without any voice communication will not disable the channel because of this feature. The time-out duration can be up from 1 second to 99 minutes 59 seconds in 1 second intervals. The time-out duration can be disabled by setting it to 00 minutes 00 seconds. When disabled, the channel will key continuously with the presence of a received signal.
MODE SETTING The channel mode may be set to either CONTINUOUS or RSSI (Received Signal Strength Indication). In the continuous mode, the channel is always keyed and continuously transmitting. In the RSSI mode, the channel is keyed only when the incoming signal strength is above the factory set threshold level. Normal operation will be in RSSI mode; continuous mode is normally used for testing. CHANGING THE MODE To change the Mode, click the function button Mode at the bottom of the main screen.
To Exit the software, click the Exit button at the bottom right corner of the main screen, a dialog box is presented, see the example in Figure 27 below, to insure your intention. Click Yes to exit the software, or No to go back to the main screen. Figure 27.
To know more about this software and AeroComm, Inc,: Point the mouse to the logo of AeroComm, Inc at the bottom of the main screen. Click when the mouse pointer changes to displayed. Figure 28. (an information icon).
800MHz-Linc Version 1.0 ACTIVATING TECHNICIAN FUNCTIONS To activate the technician function buttons (i.e. Attack, Attenuation, and Frequency): On the main screen, point the mouse to the upper left corner, click when the mouse pointer changes to a circle. The technician function buttons are then displayed at the top of the main screen Figure 29 visible below. Figure 29.
To close the technician function buttons: In the technician main screen, click the function button Finish at the far left of the top, then those function buttons for technician disappears. SETTING RSSI ATTACK TIME To set a RSSI Attack time: click the function button Attack at the top of the main screen. A RSSI Attack setting window Figure 30 appears with the current setting shown in Millisecond.
An optional feature of the software is setting and changing the Channel ID. The channel ID can be set for each channel module. This is useful if modules are swapped around or a new module is installed in place of a defective one. Normal channel IDs are depicted in Figure 17. CHANGING THE CHANNEL SERIAL NUMBER Another optional feature of the software is setting and changing the channel serial number. The channel serial number could be used to assist with asset tracking.
A click of the function button Frequency, Time Out, or Mode causes a setting window to appear in the middle of the main screen with the channels current setting shown in a text box. An example is presented in Figure 32 below. To set a frequency, click the function button Frequency at the bottom of the main screen, a frequency setting board appears. Select the desired frequency in either the high band or low band selection list by clicking on it and then click Set button.
CLOSING THE TECHNICIAN FUNCTIONS To close the technician function buttons: In the technician main screen, click the function button Finish at the far left of the top, then those function buttons for technician disappears. Figure 33.
SECTION VIII TUNE UP PROCEDURE No tune up procedures are required for this unit. manufacturing facility.
M F G C O e C D r E m : n L a E : n L a m r D C e O C G M F SECTION IX FCC CERTIFICATION LABEL LOCATION 50289-BDA t t USE OR DISCLOSURE OF DATA CONTAINED ON THIS PAGE IS SUBJECT TO THE RESTRICTION ON THE TITLE PAGE OF THIS MANUAL 56
