WATKINS-JOHNSON COMPANY R19XX PCS REPEATER MANUAL *“Phis drawing, print, or document and subject matter disclosed herein are proprietary items to which Watkins-Johnson Company retains the exclusive right of dissemination, reproduction, manufacture and sale, This drawing. print or document is submitted in confidence for consideration by the designated recipient or intended using organization alone unless permission for further disclosure is expressly granted in writing.
R19XX General Information and Safety Precautions CHAPTER 1 GENERAL INFORMATION AND SAFETY PRECAUTIONS 1-1 INTRODUCTION ‘This manual provides information pertaining to the installation, operation, and maintenance of the Watkins-Johnson PCS Repeater, shown in Figure 1-1. The model number represents the type of repeater. This manual covers the following types of PCS repeaters. The model numbers and letters are defined in the following example.
R19XX General Information and Safety Precautions Chapter 1 provides a general description of the RI19X0 and summarizes the electrical, mechanical, and environmental characteristics. It also provides a tabular listing of the R19X0’s performance specifications. Safety precautions to be observed while operating or servicing the unit are also explained. Chapter 2 provides instructions for the initial inspection and installation of the R19X0.
R19XX 1-2 SPECIFICATIONS General Information and Safety Precautions Table 1-1. R1910 Specification DESCRIPTION SPECIFICATION Frequency Band Output Power 100 m Watts COMA 500 m Watts MADMAN 500 m Waits PCS-1900 (GSM) Filter Bandwidth 1.
R19XX General Information and Safety Precautions Table 1-2. R1920 Specification DESCRIPTION SPECIFICATION .
R19XX General Information and Safety Precautions OTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules.
R19XX General Information and Safety Precautions and re transmitted to the base station. This technique provides PCS coverage inside buildings or in outside areas that previously did not have sufficient signal strength. Outside Building Inside Building Donor Antenna Repeater Server Antenna WARRIOR Lightning Arrest or Figure 1-3. Typical Usage 1-41 Remote Control Remote control and status reporting of the repeater is provided either through an RS-232 serial interface or via modem using a standard POTS line.
R19XX General Information and Safety Precautions 1-6.2 Operating Environmental Conditions The R1910 can be installed and operated in a commercial environment with temperatures varying between -10°C and 45°C. The R1920 can be installed and operated in an outdoor environment with temperatures varying between -40°C and 55°C. 1-6.3 Trans portability The R19X0 can be transported by commercial land carriers or pressurized commercial air carriers without special handling provisions.
R19XX Installation CHAPTER 2 INSTALLATION 2-1 INTRODUCTION This chapter provides information for the installation, setup and alignment of the R19X0 PCS Repeater. The information consists of procedures for unpacking and inspection, preparation for reshipment or storage, and description of unit connectors. It also provides initial start-up instructions and installation verification tests. 2.2 UNPACKING AND INSPECTION Examine the shipping carton for damage before unpacking the unit.
R19XX installation 2-3.2 Software Installation The repeater control application, provided on 3.5” floppy disks, runs on any Personal Computer (PC) running Microsoft Windows 95 or NT. The computer must also have one of two serial communications ports available for use, COM 1 or COM 2. To install the application, insert disk 1 into floppy disk drive A: and from the Start menu select Run and enter in the text box of the Run window. Click the OK button and follow the instructions given. 2-3.
R19XX Installation 2-§ INSTALLATION INFORMATION 2-51 Donor Antenna Installation The Donor antenna will be mounted outside most of the time. The antenna should be installed so that it is in line-of-sight of the base station and is pointed directly at it. If there is an arrow or polarity marking indicated on the antenna ensure that it is pointing up. Be sure that the centenarian or mast is properly grounded with a grounding strap. Determine where the RF cable will enter building and drill hole if necessary.
R19XX Installation 2-6 R1910 INITIAL TURN-ON PROCEDURE There are no special instructions for the initial turn-on or operation of the R1 910. Simply tum on the switch J1 located at the bottom of the unit and verify PWR led is illuminated green as well as the AMP and OSC LED’s 2-61 R1920 Installation TBD 27 SETUP 2.7.1 SERIAL INTERFACE For the R1910, connect a 9 pin cable between connector 12 Control. For the R1920, connect the Tx, Rx, and GND, lines to the serial port terminal block inside the repeater.
R19XX Installation Connect a modem phone line to the modem of a PC. Verify software has been installed on the PC. On the PC, click the “WJ Repeater Controller” icon on the Desktop or in the Start menu and fallow these steps to establish a connection to the repeater. 1. Choose “Modem” from the interface selection window and press “Ok”. . Enter the phone number of the repeater when prompted, and press “OK”. 3. When the main window appears, click “File” on the menu bar. Then select “Connect” from the menu. 4.
R19XX Installation Figure 2-7.1 R1910 VO Connections 2-8 ALIGNMENT PROCEDURE After completing the installation, turn-on procedure, and setup you must align and verify proper operation of the RI9XO0. a. & Connect a PC to the repeater via the selected interface and start the repeater control application by double clicking its icon. If the repeater is operational the application will fill in the Window with the current settings of the repeater. Adjust FWD gain until signal is present on SLR.
R19XX Installation 29 STORAGE Environmental conditions during storage and shipment should normally be limited as follows: a, Maximum humidity: 95% (no condensation) b. Temperature range: -40°C to +85°C 2-10 PACKING FOR RESHIPMENT OR STORAGE If the R19X0 must be prepared for reshipment or storage, use the original packing and shipping materials, if possible. Otherwise, the following general instructions should be used for repackaging with commercially available materials: a.
R19XX CHAPTER 3 OPERATION 3-1 INTRODUCTION This chapter provides information for operating the PCS Repeater. The R1910 is designed to work in an indoor environment only, while the R1920 is designed to work in an outdoor environment. The R1910 and R1920 are fully compliant with FCC part 24. For the R1910, there are no panel controls other than the power switch. For the R1920, there are no external controls or indicators. Access to A/C power connects and interface connections are via an access panel.
R19XX Operation FWD RSS > -DBMS e-70dBm Alarms Green Green 322 WJ Repeater Control Application The repeater is controlled via either a standard RS-232 interface or via modem interface using a POTS line with the, Windows 95/NT based, Watkins-Johnson Company Repeater Control application. Figure 3-1 shows the control panel of the application. At the top of the panel is a menu bar with two menu items, File and Help.
R19XX Operation ‘When the application is running and using the serial interface, it is able to detect the presence of a repeater on the selected serial Com port. ‘When a repeater is detected, the application reads its current configuration and settings and displays them in the application window. See figure 3.1. ‘When no repeater is detected the application clears the window. 3.2.23 Band, Modulation and Bandwidth Parameters The band, modulation and bandwidth parameters are status indicators only.
R19XX Operation 3.2.2.6 RF Power Out Parameters The “Power Out” parameters are status information only. They display the measured RF power out of the repeater, in dBm. 32.27 Auto-Leveling Control The Auto-Leveling Control (ALCOA, when enabled, commands the repeater to maintain the forward path RF output power level indicated in the Level box, by automatically adjusting the forward gain as appropriate. The valid range for ALC is 0 to DBMS for the R1910, and 15 to DBMS for the R1920.
R19XX Operation 3.22.11 Status Bar At the bottom of the panel is a status bar, that displays four pieces of information. Beginning in the left most, and largest box, is basic status information about the operation of the application. The second box from the left display the voltage level of the backup battery if one is installed. The next box displays the internal temperature of the repeater in degrees centigrade.
R19XX Scheduled Maintenance CHAPTER 4 SCHEDULED MAINTENANCE 4-1 INTRODUCTION The WJ PCS Repeaters are designed to operate for extended periods of time with minimum routine maintenance. Inspection and performance tests should be conducted at regular intervals consistent with the facility's normal scheduling and after troubleshooting. No routine adjustments are required.
R19XX Scheduled Maintenance Table 4-1. Scheduled Maintenance Action index Paragraph PM Action Reference Schedule Cleaning outside of equipment 44.1 Every 12 months or when dust is seen on the surface of the equipment. Inspecting for damage or wear 4-42 When the unit is not operating properly. 4-41 Exterior Cleaning Remove loose dirt accumulated on the outside of the unit with a moist paper towel, cloth, or brush. The brush is good for removing dirt on and around the connectors.
R19XX PCS Repeater Interface APPENDIX A PCS REPEATER INTERFACE A-1 INTERFACE PROTOCOL The interface to the Repeater is via a standard The data protocol is ASCII, 8 data bits, 1 stop bit, no parity, 9600 baud. The structure of a command string is as follows: [ J Elements within angle brackets required whereas elements within brackets are optional, depending on the command being sent and on whether checksum checking is enabled (see CHK command).
R19XX PCS Repeater Interface Status Response: 0 Good Status Response: APN Responds with Part number A-2 COMMAND SET ADC? ALC ALC ALC? Calf ASCOT ALSO? ARM? ALARM ALCOA APN? ASN? Hatpin PATH? AT PL i AT PL? BBE BBE BBE? BLVD? BND? CHK Request Date Code. Returns: ADC Enable Auto-Level Control for Forward Path. Disable Auto-Level Control for Forward Path. Request Auto-Level Control status. Set Auto-Leveling level in dBm. steps. Set Reverse gain Tracking offset level steps.
R19XX CHK/ CHK? Chin CHN? CZECHS? FCA i FCA? FLB? FPO? HBE HBE/ HBE? HBT i HBT? HWR? GIN s GIN/ MFN? PEN PEN/ PEN? PHN s PHN? PO? PSW s PSW? PCS Repeater Interface Disable Checksum Checking on received command strings. Request Checksum Checking status. Returns “CHK” or CHICK, Set channel number. 3500 Request channel number. Request Channel Spacing in kHz. Set Forward Coarse attenuation. even numbers only. Request Forward Coarse attenuation. Request SAW Filter Bandwidth in MHz.
R19XX RCA RCA? RPO? RAMP? STY STY/ STY? SWR? TRK/ TRK? UGN? PCS Repeater interface Set Reverse Coarse attenuation. 30dB, even numbers only. Request Reverse Coarse attenuation in dB. Request RF Power Output level in dBm of Reverse path. Request Ambient temperature in degrees centigrade. Go to Standby mode. Turns off both RF paths. Go to On-line mode. Tums on both RF paths. Request operation mode. Returns: “STY" or “STUBBY” Request Repeater Software Revision. Enable Reverse Path Tracking.
R19XX PCS Repeater Interface A-3 RESPONSE STATUS VALUES 0 No Error. 1 Range error. A parameter is out of range. 2 Unknown Command. 3 Not Enough parameters. 4 Bad checksum. 5 Not Writable. 6 Length Error. String is to long. 7 General Error. 8 Password not correct. 9 Initialization Not Complete. 10 Not Logged In 11 RF Converter Module(s) communications error. 12 Not logged in as administrator. A-4 BIT MAP OF ALARM RESPONSES There are two alarm commands, a General Alarm command, and a Converter Alarm command.
R19XX ALARMING 255 255, XX PCS Repeater Interface ‘Where: ALARMIST = The original command for Converter alarms. 151235 = Forward Converter Alarm Byte. 2nd 255 = Reverse Converter Alarm Byte.
R19XX PCS Repeater Interface Not Used Not Used Reverse Path Converter Alarm Byte: Bit 0 Alarm LNA Failure Max RF Input Power Converter DC Power Fail Lock Failure Power Amp Fail Oscillation Fault Not Used Not Used Note that either an Oscillation Fault or a Forward Power Amp fault in the general alarm will cause power to be shut off to the Converter modules and power amp. Either an *ALCOA” command or cycling AC power to the unit is required to restore power to the modules.
R18XX PCS Band Assignments: Band A Frequency Allocation 1850 1865 Mhz, Reverse Path 1930 1945 Mhz, Forward Path 1870 1885 Mhz, Reverse Path 1950 1965 Mhz, Forward Path 1895 1910 Mhz, Reverse Path 1975 1990 Mhz, Forward Path 1865 1870 Mhz, Reverse Path 1945 1950 Mhz, Forward Path 1885 1890 Mhz, Reverse Path 1965 1970 Mhz, Forward Path 1890 1895 Mhz, Reverse Path 1970 1975 Mhz, Forward Path PCS Channel Assignments for COMA Modulation: to “moo Channel Assignments 0-299 400 699 900 1199 300 399 700 799 800 899
R19XX PCS Repeater interface PCS Channel Assignments for MADMAN Modulation: Channel Assignments | 1-499 688-1165 1501-1999 501-665 1168-1332 1335-1499 xd Moro compute the frequency of a particular channel: Forward Path Channel Freq. = Channel# * kHz + 1929.990MHz Reverse Path Channel Freq, = Channel# * kHz + 1850.
R19XX PCS Repeater Interface Example: To read the current band assignment: Command to request the band info. 0 Good status response from unit. BND 1A; XX Response from unit to BND command. Also, certain bands can be combined to provide a wide band unit. Bands A and D can be combined into band AD, bands B and E can be combined into band BE, and bands F and C can be combined to form band FC.
PCS Repeater Interface R19XX Example: To read the current band assignment: Command 10 request the band info. Good status response from unit. 0 BND 1A; XX pones from mit to BND command. Also, certain bands can be combined to provide a wide ban and D can be combined into band AD, bands Band Canberra combined into band BE, and bands F and C can be combined 10 form band FC. 1f a COMA unit is set to and FC, for example, the allowable channels would be channels for bands And C.