Summation Research STR1820 LAND MOBILE RADIO FOR DATA COMMUNICATIONS User Manual 70 STR1800 Operation and Maintenance Manual Rev A

Summation Research Inc LAND MOBILE RADIO FOR DATA COMMUNICATIONS 70 STR1800 Operation and Maintenance Manual Rev A

Users Manual

SRI Summation Research Inc STR-1800 L^nd Mobile D^t^ R^dio Operations and Maintenance Manual Meeting 21st Century Challenges - with – Technically Appropriate Solutions Prepared by: Summation Research Inc – Melbourne, FL SRI Document Number: 70-STR1800-00 O&M Revision: A This document contains information proprietary and confidential to SRI. Transmittal, receipt, or possession of this document does not express, license, or imply any rights to use, design, or manufacture from this information. No reproduction, publication, or disclosure of this information, in whole or in part, shall be made without prior written authorization from an officer of SRI. SRI • 3950 DOW ROAD • MELBOURNE, FLORIDA 32934 (321) 254-2580 • FAX (321) 254-2492 • Internet : http://www.summationresearch.com Email : info@summationresearch.com © Copyright 2010, SRI Printed in U.S.A. Development Research
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70-STR1800-00 Rev A STR-1800 O&M Manual - i - SUMMATION RESEARCH, INC. LIMITED WARRANTY Summation Research, Inc. (herein called SRI) warrants that the equipment’s of its manufacture as identified and described within this manual shall, at the time of shipment to the original purchaser, be free from defects in material and workmanship. This warranty applies only to equipment installed, operated, and maintained in accordance with SRI recommendations. This warranty does not apply where SRI determines that installation, repair, alteration, or accidents have caused any claimed defect, or that excessive deterioration due to environmental contamination has occurred. SRI’s obligation under this warranty is limited to repairing, or replacing, exclusive of cost of installation and labor charges, any part that SRI determines to be defective, provided that such part is received at SRI’s principal office, freight prepaid. All equipment's must receive prior approval for return to SRI for warranty repair, and must be sent prepaid. If they are returned collect, they will not be accepted. This warranty is subject to any existing conditions of supply that may directly affect SRI’s ability to obtain materials or manufacture replacement parts. SRI makes no warranty that the equipment shall be merchantable or fit for any particular purpose; nor does SRI make other warranties, express or implied, by operation of law or otherwise, except such as are expressly set forth herein. SRI shall not be liable to buyer, or to any third persons for any incidental, consequential, special or contingent damages for breach of any warranty. All specifications within this document are subject to change without prior written notice.
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70-STR1800-00 Rev A STR-1800 O&M Manual - iii - RF Exposure Statement The radio generates RF electromagnetic energy during transmit mode. This radio is designed for and classified as “Occupational Use Only”, meaning it must be used only during the course of employment by individuals aware of the hazards, and the ways to minimize such hazards. This radio is NOT intended for use by the “General Population” in an uncontrolled environment. For compliance with FCC and Industry Canada RF Exposure Requirements, the transmitter antenna installation shall comply with the following two conditions: 1. The transmitter antenna gain shall not exceed a limit necessary for the application. 2. The transmitter antenna is required to be located outside of a vehicle and kept at a separation distance of 45 centimeters or more between the transmitter antenna of this device and persons during operation. To ensure that your exposure to RF electromagnetic energy is within the FCC allowable limits for occupational use, always adhere to the following guidelines: • DO NOT operate the radio without a proper antenna attached, as this may damage the radio and may also cause you to exceed FCC RF exposure limits. A proper antenna is the antenna supplied with this radio by the manufacturer or an antenna specifically required to meet application requirements. • DO NOT transmit for more than 50% of total radio use time (“50% duty cycle”). Transmitting more than 50% of the time can cause FCC RF exposure compliance requirements to be exceeded. Electromagnetic Interference/Compatibility During transmissions, the radio generates RF energy that can possibly cause interference with other devices or systems. To avoid such interference, turn off the radio in areas where signs are posted to do so. DO NOT operate the transmitter in areas that are sensitive to electromagnetic radiation such as hospitals, aircraft, and blasting sites.
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70-STR1800-00 Rev A STR-1800 O&M Manual - v - Record of Changes Dates of issue for original and each revision of this document are: REVISION DATE TITLE OR BRIEF DESCRIPTION ISSUED BY A June 2010 Phase I Production Release Tom Drago LIST OF EFFECTIVE PAGES This document is arranged in the following four (4) parts: 1 Document Cover 2 Warranty Statement 3 RF Exposure Statement 4 Record of Changes 5 Table of Contents 6 Document Main Text NOTE: On document revisions, a vertical line in the outer margin of the page indicates the portion of the text affected by the revision. A vertical line in the outer margin of the Figure or Table name indicates changes to illustrations or tables.
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70-STR1800-00 Rev A STR-1800 O&M Manual - vii - Table of Contents SECTION 1 INTRODUCTION ........................................................................................................... 1 1.1 Scope .................................................................................................................................. 1 1.2 Product Description ........................................................................................................... 1 1.3 Technical Specifications .................................................................................................... 2 1.4 Reference Documentation ................................................................................... 4 SECTION 2 RECEIVING, INSPECTION AND INSTALLATION ................................................. 5 2.1 Unloading and Unpacking ................................................................................................. 5 2.2 Receiving Documentation .................................................................................................. 5 2.3 Installation and Connection Requirements ........................................................................ 5 2.4 Connector Descriptions and Signal Definitions ................................................................. 6 2.4.1 Primary Power ..................................................................................................... 6 2.4.2 Antenna ............................................................................................................... 6 2.4.3 Audio/Control ...................................................................................................... 7 2.4.4 Diagnostic/Programming ..................................................................................... 8 SECTION 3 OPERATION ................................................................................................................. 11 3.1 Minimum System Requirements ...................................................................................... 11 3.2 Software Installation ........................................................................................................ 11 3.3 Conventions ..................................................................................................................... 11 3.4 Getting Started ................................................................................................................. 11 3.4.1 Radio Interconnect ............................................................................................. 11 3.4.2. Power-on Sequence ........................................................................................... 12 3.4.3. Reading the Radio Configuration ...................................................................... 12 3.4 Altering the Radio Configuration .................................................................................... 13 3.5.1 Changing Individual Channel Settings .............................................................. 13 3.5.2 Saving/Restoring Channel Parameters ............................................................... 14 3.5.3 Power Output Control ........................................................................................ 14 3.6 Radio Operation ............................................................................................................... 14 SECTION 4 MAINTENANCE ........................................................................................................... 15 4.1 Maintenance Concept ....................................................................................................... 15 4.2 Preventive Maintenance Requirements ............................................................................ 15 4.2.1 Inspection .......................................................................................................... 15 5.2.2 Cleaning ............................................................................................................. 15 APPENDIX A SCHEMATICS FPC, MDC .......................................................................................... 17
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70-STR1800-00 Rev A STR-1800 O&M Manual - ix - List of Figures Figure 1 STR-1800 Multi-Mode Land Mobile Data Radio ..................................................................... 1 Figure 2 System Overview ....................................................................................................................... 2 Figure 3 Field Radio to PC Interconnect Configuration ........................................................................ 11 Figure 4 Factory Radio to PC Interconnect Configuration .................................................................... 12 Figure 5 Control Software Initial Screen ............................................................................................... 13 List of Tables Table 1 Specifications ............................................................................................................................. 2 Table 2 Primary Power Connector Characteristics .................................................................................. 6 Table 3 Antenna Port Connector Characteristics .................................................................................... 6 Table 4 Audio/Control Connector Characteristics .................................................................................. 7 Table 5 Audio/Control Connector Pin Assignments............................................................................... 7 Table 6 Channel Selection Control Settings ........................................................................................... 8 Table 7 Reference Input Connectors ...................................................................................................... 8
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70-STR1800-00 Rev A STR-1800 O&M Manual - 1 - SECTION 1 INTRODUCTION The STR-1800 series of UHF radio product represents a state-of-the-art communications line providing multi-mode, half-duplex audio to radio frequency (RF) transmit and receive functions. Consisting of multiple models, the series provides analog FM transceiver functions in the 400 to 470 MHz frequency bands. The design has been tailored towards narrowband data telemetry applications requiring fast transmit/receive response times with compact size and high reliability. 1.1 Scope This manual describes the Summation Research, Incorporated STR-1800 series of Land Mobile Radios. The manual includes specifications, design description, installation, and operation instructions along with routine maintenance requirements for the STR-1800. 1.2 Product Description The STR-1800 is a modified version of a standard Model IC-F6061 UHF radio product produced by ICOM. Future versions of this product may support VHF and extended UHF frequency bands. In order to make the product more applicable for data communications functions, the STR-1800 product line incorporates a custom front panel as depicted in the following picture. Figure 1 STR-1800 Multi-Mode Land Mobile Data Radio The custom front panel replaces the normal operator oriented local status/control interface and audio interface connector with a DB-25 connector targeted for computer control. The DB-25 provides both the audio interface and a selection capability for frequency select. A secondary connector provides for diagnostic and programming functions. These features are incorporated via a custom printed circuit board (PCB) located within the STR-1800 front panel known as a Front Panel Card (FPC). This card in-turn interfaces with an internal daughter card known as the Modem Card (MDC). Figure 2 depicts a top level overview of the STR-1800 Radio.
70-STR1800-00 Rev A STR-1800 O&M Manual - 2 - FrontPanelCard(FPC)Main Radio ChassisFront Panel BezelFlex Modem Card(MDC) Main Radio CardFlexPCB to PCBConnPTTChan Sel (4)Tx/Rx AudioDiag/ProgI/ORF Antenna13.6VDC Figure 2 System Overview 1.3 Technical Specifications The technical capabilities of the STR-1800 radios are summarized in the following table. Table 1 Specifications PARAMETER SPECIFICATION Frequency Range STR-1820: 400-470 MHz Consult factory for future versions Number of Channels 16 preset channels selected from 510 factory configured frequencies Frequency Stability ±0.0005% of assigned center frequency from -30°C to +60°C (+25°C reference) Compliance FCC type certified (FCC 47 CFR 90) as well as Industry Canada. Operating Power 13.6 VDC ± 15% (current @ 13.6 V: transmit 9 A, receive 0.7 A) Operator Adjustments None Reliability 25,000 hr MBTF Antenna Connector UHF PL-259 type female located on rear panel Audio Interface and Control Connector DB-25 socket on front panel including 4 channel select lines, audio in/out, push-to-talk. Separate DB-9 socket for diagnostic and programming interface. Power Connector Tyco/AMP Electronics P/N 172129-1 (female housing with male contact pins) Channel Spacing Selectable to either 25 KHz or 12.5 KHz channel spacing. Hardware capable for future 6.25 KHz channel spacing. RF Output Power Selectable as 3 factory set discrete power levels from 0 and 30 watts (±2%) into a VSWR of 2:1 or better. Output Impedance 50 ohms, nominal Output Protection Operating into a 10:1 VSWR of any phase angle without damage Modulation FM with a rated deviation of +/- 5 KHz for 25 KHz channel spacing and +/- 2.5 KHz for 12.5 KHz channel spacing.
70-STR1800-00 Rev A STR-1800 O&M Manual - 3 - Modulation Sensitivity Radio achieves 80% (+/- 5%) of rated system deviation is for a 1 KHz input tone between 40mV RMS and 1V RMS. Turn-On Time Within 20 msec (of application of the keying signal, the transceiver reaches 90% of programmed output power and is capable of transmitting an on frequency signal with a SINAD of 30 dB or greater. Spurious and Harmonic Output -70 dB below rated power Audio Input Impedance 1200 Ohm ±20% Transmit Audio Frequency Response Flat response over the 300-3000 Hz range with no pre-emphasis. Minimum Duty Cycle 25% transmit duty cycle continuous. Capable of 15 s continuous keying Output S/N Ratio 30 dB minimum fully modulated Spurious Leakage -57 dBm maximum Selectivity 70 dB min @ 25 KHz channel spacing, 60 dB min. @ 12.5 KHz spacing Intermodulation 65 dB minimum Dynamic Range With input signals ranging from -100 dBm to 0 dBm, the SINAD at the receiver is 23 dB minimum when receiving a signal modulated with a 1 KHz tone at 60% rated deviation Sensitivity 12 dB SINAD minimum for input signal level of -116 dBm Spurious and Image Rejection 70 dB minimum Transmit to Receive Recovery Time 30 msec maximum measured from removal of keying signal to the transmitter Audio Output A 1 KHz signal at 80% rated deviation produces a 1 V p-p audio output into a 600 ohm resistive load. Receive Frequency Response Flat response over the 300-3000 Hz range with no de-emphasis. Receiver Overload A +28 dBm signal continuously for 30 minutes applied to the antenna input will not cause any permanent damage. Dimensions Approximately 1.8" high x 6.35" wide x 7" deep Weight 4.5 pounds Vibration Per EN 50155 Railway Applications - Electronic Equipment Used on Rolling Stock Shock Per EN 50155 Railway Applications - Electronic Equipment Used on Rolling Stock Temperature -30°C to +60°C (operating and storage) Humidity Per EN 50155 Railway Applications - Electronic Equipment Used on Rolling Stock Altitude Sea level to 12,000 feet operating and 50,00 feet non-operating
70-STR1800-00 Rev A STR-1800 O&M Manual - 4 - 1.4 Reference Documentation The following documents, or the latest revision of these documents, serve as an addendum to this document. Users are referred to these documents for maintenance and design information pertaining to the standard ICOM radio circuitry. Service Manual – UHF Transceivers – IC-F6061/6062/6063 © 2007 Icom Inc.)
70-STR1800-00 Rev A STR-1800 O&M Manual - 5 - SECTION 2 RECEIVING, INSPECTION AND INSTALLATION 2.1 Unloading and Unpacking NOTE If shipping carton is damaged upon receipt, request carriers agent be present during unpacking and inspection of the system. Upon receipt of the equipment, inspect the shipping container for damage. If the container or the cushioning material is found damaged, they should be kept until the contents of the shipment have been verified for completeness and the equipment has been inspected for mechanical and electrical defects. If the contents are incomplete or if there is a mechanical or electrical defect, please notify: SUMMATION RESEARCH, INCORPORATED 3950 Dow Road Melbourne, Florida 32934 2.2 Receiving Documentation Each STR-1800 radio is shipped with a packing slip. The packing slip should be carefully checked against the contents of the shipping container. 2.3 Installation and Connection Requirements The STR-1800 has Six (6) connectors. These are: 1) Primary Power 2) Antenna 3) Audio/control 4) Programming/diagnostic 5) Unused Rear DB25 6) Unused Rear Phono Jack After carefully reviewing the connector and signal descriptions below, the user should establish all connections, making sure that the primary power input is turned off at the source. Once all interconnections are in place, primary power may be applied. .
70-STR1800-00 Rev A STR-1800 O&M Manual - 6 - 2.4 Connector Descriptions and Signal Definitions This section describes the types of connectors used on the STR-1800 and provides the definition of the signals associated with each. 2.4.1 Primary Power The Primary Power connector is located on the rear of the STR-1800 and is attached to the unit itself via approximately 6 inches of 14 gage wire. Characteristics of this connector are as indicated in the following table. Table 2 Primary Power Connector Characteristics PARAMETER VALUES Part number Tyco/AMP Electronics P/N 172129-1 Female housing with male contact pins Pin Assignments When viewing contacts as a T, top horizontal pin is +13.6 VDC while vertical descending pin is Ground Input Voltage Range 13.6 VDC +/- 15% Current Drain 9 Amps maximum Connector to Radio Color Coding 13.6 VDC Contact – Red Ground Contact - Black 2.4.2 Antenna The Antenna connector is located on the rear of the STR-1800 and is mounted directly to the main housing of the radio. Characteristics of this connector are as indicated in the following table. Table 3 Antenna Port Connector Characteristics PARAMETER VALUES Connector Type UHF PL-259 Type Female Antenna Impedance 50 Ohms Maximum Output Power 45 Watts Output Frequency Range STR-1820: 400-470 MHz Consult factory for future versions
70-STR1800-00 Rev A STR-1800 O&M Manual - 7 - 2.4.3 Audio/Control The Audio/Control connector is located on the front of the STR-1800 and is mounted directly to the front panel mold of the radio. Characteristics of this connector are as indicated in the following table. Table 4 Audio/Control Connector Characteristics PINS (+/-) SIGNAL Connector Part Number DB-25 Female Mating (User Supplied) Connector Part Number DB-25 Male The following table defines the signal contents of all assigned pins on this connector Table 5 Audio/Control Connector Pin Assignments PIN SIGNAL DESCRIPTION AND CHARACTERISTICS 2 Audio Isolated Ground Ground for the audio inputs/outputs of the radio 4 Receive Audio Recovered audio signal output from the radio. 5 Channel Select 3 Control signal which when combined with Channel Select 0/1/2 forms a 4-bit binary channel selection control. 6 RXD+ Future RS485 digital interface 7 Push-to-Talk (PTT) Places the radio into transmit mode when low (i.e., grounded) or receive mode when high or floating. 8 RXD- Future RS485 digital interface 11 Audio Isolated Ground Ground for the audio inputs/outputs of the radio 14 Channel Select 2 See pin 5 description above 17 Transmit Audio Audio signal input to the radio when transmit operation is active. 18 Channel Select Lines Ground Ground for the Channel Select 0/1/2/3 lines 19 Channel Select 0 See pin 5 description above 21 PTT Isolated Ground Ground for the PTT signal 23 Channel Select 1 See pin 5 description above 24 TXD+ Future RS485 digital interface 25 TXD- Future RS485 digital interface
70-STR1800-00 Rev A STR-1800 O&M Manual - 8 - Pins not listed within this table are all defined as no connects. For the channel select lines described above, the following table defines the control functions of these inputs. Table 6 Channel Selection Control Settings FRONT PANEL 25 PIN D SIGNAL STATES DEFINITION CHANNEL SELECT 3 CHANNEL SELECT 2 CHANNEL SELECT 1 CHANNEL SELECT 0 High High High High Select Chan 1 High High High Low Select Chan 2 High High Low High Select Chan 3 High High Low Low Select Chan 4 High Low High High Select Chan 5 High Low High Low Select Chan 6 High Low Low High Select Chan 7 High Low Low Low Select Chan 8 Low High High High Select Chan 9 Low High High Low Select Chan 10 Low High Low High Select Chan 11 Low High Low Low Select Chan 12 Low Low High High Select Chan 13 Low Low High Low Select Chan 14 Low Low Low High Select Chan 15 Low Low Low Low Select Chan 16 2.4.4 Diagnostic/Programming The diagnostic/programming interface provides 3 different interfaces into the radio as follows: 1) RS-232 serial port interface for status/control and reprogramming of the modem processor contained on the MDC of the design. 2) USB universal serial bus interface for the same purpose to the MDC modem processor. 3) A full duplex interface with power to a remote front panel for the unit. The pinouts associated with this connector are as follows: Table 7 Reference Input Connectors
70-STR1800-00 Rev A STR-1800 O&M Manual - 9 - Pin Signal DESCRIPTION AND CHARACTERISTICS 1 RD (Input) Data input to radio. RS-232 electrical levels. 2 Conn Key A stubbed (i.e.; filled) pin location which prevents users from connecting a standard UART DB-9 cable into the radio. 3 TD (Output) Data output from radio. RS-232 electrical levels. 4 RFPDO Remote front panel data output. TTL electrical levels. 5 GND Ground 6 USBD+ Universal serial data bus positive. USB electrical levels. 7 USBD- Universal serial data bus negative. USB electrical levels. 8 RFPDI Remote front panel data input. TTL electrical levels. 9 RFP+8 V Remote front panel +8 Volt output. DC output power. As identified in the section that follows this, these interfaces should only be used with cable assemblies provided by SRI.
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70-STR1800-00 Rev A STR-1800 O&M Manual - 11 - SECTION 3 OPERATION Operation of the STR-1800 is accomplished by utilizing a special software program to configure the radio for the proper configuration and then connecting the system into the target platform for audio data transmission and reception. The following sections describe the STR-1800 operations from the perspective of configuring the unit for the proper radio channel characteristics prior to final system installation. 3.1 Minimum System Requirements This package requires a PC executing under the Windows XP or Windows 7 operating system. 3.2 Software Installation The control software for the STR-1800 is provided as a standard installation program from the factory. Executing this program activates a standard windows software installation process with full instructions as to required user actions. The installation will create the program “STR1800.exe” in the specified install directory. 3.3 Conventions The STR-1800 control software supports standard Windows type operation, including menu based selection processes. The STR-1800 control program utilizes Labview, a software package from National Instruments. The install directory also contains other support files associated with the run-time version capability required of Labview for the control program. 3.4 Getting Started 3.4.1 Radio Interconnect Before taking any actions from the control program with an STR-1800 radio, the radio must be connected to a primary power source and to the PC via a special programming interface cable and adapter. The exact configuration and cable assembly number used varies based on the type of user. Field users are limited to controlling channel specific information including frequency, transmit power level (Hi, Med, Lo), operational mode (V.23 analog or future), and channel bandwidth (currently 12.5 or 25 KHz). The configuration for these users is as shown below. Figure 3 Field Radio to PC Interconnect Configuration
70-STR1800-00 Rev A STR-1800 O&M Manual - 12 - Factory users are allowed to control radio settings pertaining to output power level calibration. The following figure depicts this expanded configuration. Figure 4 Factory Radio to PC Interconnect Configuration For either mode, the 13.6 VDC power supply need only support the radio operation in a quiescent mode (i.e., < 0.7 A). 3.4.2. Power-on Sequence Once the above configuration has been established, the primary power supply and PC should be powered on and initialized. The power up sequence of the radio versus the PC is not critical. However for the factory configuration the 30-STR-1800-01 cable assembly must be connected to the radio prior to powering on the radio. In this configuration the primary power will cause the remote front panel unit display to activate and display configuration information. No such indication is available on the field configuration 3.4.3. Reading the Radio Configuration Assuming the above process is successful, the user can proceed to activate the STR1800.exe program. This will result in the following sample screen on the PC’s monitor.
70-STR1800-00 Rev A STR-1800 O&M Manual - 13 - Figure 5 Control Software Initial Screen If this is the first time the program is being utilized or if the operator has changed the PC’s serial communications port being utilized, the first action taken by the user should be to establish the correct port selection. This can be accomplished by doing a menu selection from the “Radio Comm Port” selection. After this action, the user may select “Get All”. This will cause the software to interrogate the interconnected STR-1800 and then update the displayed fields. The Serial Number field should reflect the five (5) digit serial number from the product label on the STR-1800. The model number will indicate the specific model of the radio and the various version numbers will reflect the hardware and software versions of the radio. The main part of the screen indicates the current settings for the sixteen (16) preset channel selections of the radio. This includes the channel frequency, bandwidth (i.e., wideband at 25 KHz or narrowband at 12.5 KHz) and output power level (i.e., “High” of 30 Watts, “Medium” (Undefined) or “Low” of 5 watts.). 3.4 Altering the Radio Configuration 3.5.1 Changing Individual Channel Settings Once a radio has been read as described above, the channel configuration fields may be edited. The frequency field may be changed by selecting appropriate field and holding it to show a menu list of all available frequencies. Radios may be factory programmed for up to 512 frequencies. The frequencies of all defined items will be displayed when the field is selected. The bandwidth and power selections are toggle controls operate in a similar manner.
70-STR1800-00 Rev A STR-1800 O&M Manual - 14 - After establishing the changes to all channel settings, the user should select “Send All”. The system will again interrogate the radio as to its current settings, modify the channel configurations according to the edited fields, and then write the new configuration back to the radio. By interrogating the radio again prior to modifying its settings, the software insures the correct configuration update even if a new radio has been connected to the PC since the last read radio action. As such, a user may establish a channel configuration and then write the data to multiple radios simply by connecting a new radio to the PC and invoking “Send All”. The fields on the screen will be updated each time this action is taken. 3.5.2 Saving/Restoring Channel Parameters This capability of the control program will be added on a future release. 3.5.3 Power Output Control This capability of the control program will be added on a future release. 3.6 Radio Operation Having established the proper channel configuration for the radio, the STR-1800 is now ready for target platform installation. The following operational considerations should be noted: 1) Radios take up to 5 seconds to boot up. 2) Radios which are powered up with an active push-to-talk condition will not operate until the push-to-talk is removed and stay’s in a non-active condition for a period of 2 seconds. 3) On initial power up or on any change of the frequency select lines into the radio, the target frequency setting may take up to 100 msec to obtain. 4) If push-to-talk is active at any time during the tuning period outlined in note 2 above, the tuning action will not complete until push-to-talk is removed and stay’s in a non-active condition for a period of 2 seconds. 5) Radios which have a push-to-talk condition activated for more than 15 seconds will automatically shut down transmit operation and stay inactive until push-to-talk returns to a non-active condition for a period of 2 seconds.
70-STR1800-00 Rev A STR-1800 O&M Manual - 15 - SECTION 4 MAINTENANCE In order to ensure that the STR-1800 system is always ready for operation, it should be checked periodically so that potential defects may be discovered and corrected before they develop into any serious damage or system failure. A minimal preventive maintenance program will significantly increase the systems life span. This section describes the necessary preventive maintenance checks and tests the user can perform to easily identify most defects and problems. Any other defects or problems discovered during the normal operation of the system should be noted for future corrective measures. CAUTION Stop the operation of the system immediately if a problem is noted during normal operation which can otherwise damage the system. This section also describes the corrective maintenance checks that can be performed on the STR-1800 system. 4.1 Maintenance Concept The maintenance concept for the STR-1800 system is limited to the removal and replacement of the entire unit. 4.2 Preventive Maintenance Requirements The following is a recommended timetable for performing preventive maintenance checks on the STR-1800. CAUTION Primary power to the radio must be turned OFF when performing preventive maintenance on the equipment 4.2.1 Inspection The STR-1800 system should be inspected periodically for defects or physical damage developed during operation. Inspect all the interface cables to and from the system for cracks, breaks and proper seating with their mating connectors on the card. Inspect all cables for frayed, broken or damaged wires. In addition, inspect all STR-1800 connections for accumulation of dirt, grease, or any foreign material that can cause a non-connection. If a cable is found damaged or non-repairable, it should be replaced before operating the system again. Inspection should be performed at least once every month. The frequency of inspection should be increased for units exposed to dusty or heavy particulate environments. 5.2.2 Cleaning Clean the outside surfaces and areas around the connectors periodically. Clean the surfaces with a clean, soft, lint-free cloth. Clean the areas around the connectors with a soft bristle brush. To remove grease, fungus, or corrosion, use a cloth dampened with an appropriate electronics cleaning fluid. Cleaning should be done at least once every month. The frequency of cleaning should be increased for units exposed to dusty or heavy particulate environments.
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SRI Summation Research Inc Summation Research, Inc Is • A QUALIFIED SMALL BUSINESS VENDOR • LOCATED ON THE HIGH TECHNOLOGY SPACE COAST OF FLORIDA • DEDICATED TO PROVIDING ON-TIME AND APPROPRIATE SOLUTIONS TO THE CHALLENGES OUR CUSTOMERS PRESENT • FOUNDED ON THE FIRM BELIEVE THAT SMALL COMPANIES CAN EFFICIENTLY PROVIDE RAPID RESPONSE, LOWER COST SOLUTIONS TO LARGER COMMERCIAL CORPORATIONS OR GOVERNMENT AGENCIES. Summation Research, Inc Specializes In • SPECIAL AND GENERAL PURPOSE COMMUNICATIONS EQUIPMENT • PRIVATE LAND MOBILE RADIOS • SATELLITE TELEMETRY AND COMMUNICATIONS EQUIPMENT • AUTOMATED PRODUCTION TEST EQUIPMENT • HIGH PERFORMANCE SPECIALIZED TEST EQUIPMENT Summation Research, Inc Provides • ENGINEERING RESEARCH AND DEVELOPMENT SERVICES AND/OR STUDIES • PRODUCT DESIGN AND DEVELOPMENT • PROTOTYPE TO PRODUCTION ENGINEERING • FABRICATION, MANUFACTURING OR REFURBISHMENT SERVICES FOR MORE INFORMATION ON SRI OR ANY OF ITS PRODUCTS, CONTACT ANY OF OUR AUTHORIZED REPRESENTATIVES -OR- WRITE US AT SUMMATION RESEARCH, INC., 3950 DOW ROAD, MELBOURNE, FL 32934 -OR- CALL US AT (321) 254-2580 OR FAX TO (321) 254-2492 -OR- VISIT OUR INTERNET HOMEPAGE AT http://www.summationresearch.com -OR- EMAIL TO: info@summationresearch.com © Copyright 2010, Summation Research Inc. Printed in USA.

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