IPSeries B09150-12 Base Station Product Owner’s Manual Date Released: December 4, 2003 Document #: 516.80516.POM Version: A Copyright 2003 IPMobileNet, Inc. .
The term “IC”: before the radio certification number only signifies that Industry of Canada technical specifications were met. Operation is subject to the following two (2) conditions: (1) this devise may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of this device. The following U.S. Patents apply to this product: U.S.
TABLE OF CONTENTS SECTION 1: THEORY OF OPERATION .................................................................................................... 4 General Block Diagram.................................................................................................................. 4 General Block Diagram Definitions ..................................................................................... 4 Input/Output ......................................................................................
SECTION 1: THEORY OF OPERATION GENERAL BLOCK DIAGRAM General Block Diagram Definitions For increased data security, the modem supports the U.S. Government developed Digital Encryption Standard (DES) data encryption and decryption protocols. This capability requires installation of thirdparty IP compliant DES encryption and decryption software.
SECTION 1: THEORY OF OPERATION Modems Convert data into an analog audio waveform for transmission and analog audio from the receiver to serial data interface. There is one (1) modem that is dedicated to the transmit operation and two (2) modems dedicated to the receive operation. The modem dedicated to the transmit supports a 115.2 kbps data transmission rate on the serial port, SLIP protocol, and a 19.2 kbps or 32 kbps over-the-air data transmission rate.
SECTION 1: THEORY OF OPERATION B09150-12 Base Station Section Descriptions System Controller This section displays the Central Processing Unit (CPU)(U1), clock, and power-on reset circuitry. It provides more processing power than required for future capabilities to be incorporated without changing processors. Such capabilities include data encryption/decryption (DES) and remote fault monitoring. U1 features a 16-bit address bus and 128K of internal flash random access memory (RAM).
SECTION 1: THEORY OF OPERATION Modem This base station uses separate modems for receive and transmit functions so that full-duplex operation may be obtained. The A0-A1 address bus in addition to the individual read (RD*), write (WR*), and chip select (MODEMTXCS*) lines control all three (3) modems. Modem operations are timed by Y2, a 4.9152 MHz clock module. Modem chip U14 is dedicated to the transmit operation.
SECTION 1: THEORY OF OPERATION Baseband This circuitry amplifies the audio from each receiver, routes it through a RF multiplexer, and selects the audio from the receiver with the highest RSSI value. The comparator circuit on the previous sheet controls it. There are three (3) channels of audio, with separate gain and DC offset adjustments to compensate for performance differences in the receivers. For example, incoming audio from receiver 1 appears at AUDIO 1. An op amp (U12D) is then amplifies the audio.
SECTION 1: THEORY OF OPERATION Receiver Injection This displays a serial data input/output interface, synthesizer, and VCO. The I/O interface circuitry accepts clock, serial data, and enable signals from the System Controller Board via terminal block TB1. A lock detect (LD) status output is returned to the System Controller Board from the synthesizer. U1 is a hex Schmidt Trigger inverter, which squares up incoming signals for reliable operation of the synthesizer chip.
SECTION 1: THEORY OF OPERATION A regulator (VR2) powers the T/R switch circuitry. When the System Controller Board makes TXKEY* low, inverter U1B goes high, turning on transistor Q2 and FET Q1. This applies 5-volt power to the TXENABLE output, turning on the T/R switch on the Power Amplifier Board. At the same time, transistor Q3 conducts, grounding the KEY* input of the Power Amplifier Board.
SECTION 1: THEORY OF OPERATION consisting of R30, C45, C28, and C37. The filter integrates the pulses, which normally appear on PDOUT into a smooth DC control signal for the VCO. The output of U7 is attenuated by module AT1, resulting in improved VCO stability. Power Amplifier The transmit injection signal from the RF injection section is applied to the high-powered linear amplifier (U1) one (1) watt amplifier. The signal is then routed to the final power amplifier boosting the output signal to 40 watts.
SECTION 2: FCC LABEL B09150-12 Base Station FCC Label Placement LABEL B09150-12 Base Station FCC Label 391500
APPENDIX A: CIRCUIT BOARD DIAGRAMS System Controller J2 32 Y1 C76 25 26 C84 1 U13 R80 100 C74 J3 R79 16 U2 R50 R62 R65 50 109 51 C56 108 T1 R66 C83 76 C75 R51 75 C77 S3 C8 REWORK INSTRUCTION ADD JUMPER (30 AWG INSULATED WIRE) from U19 Pin2 to VIA (RVCC) U10 S2 J1 C7 R33 C28 U14 R31 U8 TP5 73 72 U19 U18 C58 R88 C59 R83 R82 R81 U20 + U17 D7 U7 C90 8 U21 U4 TP8 7 J5 C88 R43 1 R44 R41 R42 R39 12 R40 J8 S1 U15 U6 C89 1 J7 VR3 9 1 10 2 TP4 Y2 F1 U16
APPENDIX A: CIRCUIT BOARD DIAGRAMS Receiver – Bottom Receiver Injection + + + + + + + 391500 Page 14
APPENDIX A: CIRCUIT BOARD DIAGRAMS Exciter – Top + + + + + Exciter – Bottom + + + 391500 Page 15
APPENDIX A: CIRCUIT BOARD DIAGRAMS Power Amplifier + + 391500 Page 16
APPENDIX B: B09150-12 TEST DATA SHEET Program and Configure the Base Station Date Serial Number Firmware Revision End User Tester Adjustment / Alignment Procedures Receiver Injection Parameter Spec Injection Frequency Error at RXINJ1(within +/- 10 Hz of exact injection frequency) P3 & C2 Measured +/- 100 Hz 5 +/- 1 dBm Receiver Diversity Reception Controller 1, 2 & 3 Parameter Spec U3 Pin 4 +10 to +5 dBm RSSI Test Point TP1-4 2.8 to 3.0 VDC Distortion (1 kHz Test Tone @ 5.
APPENDIX B: B09150-12 TEST DATA SHEET Data Quality Parameter Spec Receiver 1 Data Quality (x=1400, 19 Command IPMessage Utility) 240> Receiver 2 Data Quality (x=1400, 19 Command IPMessage Utility) 240> Receiver 3 Data Quality (x=1400, 19 Command IPMessage Utility) 240> Measured Exciter Parameter Spec Transmit Frequency Error (Transmitting 1400 character test message) Transmit Modulation Deviation (5.