Digital Recorders 901-1700-000 Wireless Data Transfer Option User Manual Wireless OM manual

Digital Recorders Inc Wireless Data Transfer Option Wireless OM manual

Digital Recorders Wireless Data Transfer Operations and Maintenance Manual

Digital Recorders WIRELESS DATA TRANSFER Operations and Maintenance Manual P/N 597-0002-000 Release 5/15/01 ©2001 Digital Recorders, Inc. All rights reserved.
COPYRIGHT © 2001 DIGITAL RECORDERS, INC. ALL RIGHTS RESERVED No part of this manual may be reproduced or transmitted in any form electronic or mechanical without the express written permission of Digital Recorders, Inc. The information contained in this manual is updated regularly. Every effort has been taken to ensure the accuracy of the information within this manual. Digital Recorders, Inc. cannot assume liability for losses of any nature arising from errors or omissions. Printed in the US NOTE: This equipment complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference; and (2) This device must accept any interference received, including interference that may cause undesired operation. WARNING: Changes or modifications not expressly approved by Digital Recorders, Inc. may void the user’s authority to operate this equipment. WARNING: To satisfy FCC RF exposure requirements for mobile transmitting devices, a separation distance of 32cm or more should be maintained between the antenna of this device and persons during device operation. To ensure compliance, operations at closer than this distance is not recommended.
To our valued customer; Digital Recorders is pleased to provide you with this Operations and Maintenance Manual for your Wireless Data Transfer. We hope you will find the information within both useful and informative. Every effort has been made to ensure the information found in this manual is accurate. If, however, you discover any errors, omissions or have any suggestions for changes or improvements please contact us. All of us at Digital Recorders wish to sincerely thank-you for choosing the Talking Bus® family of products. We are continually striving to provide the highest quality products available along with the best customer service possible! We look forward to working with you. If you have any questions you can visit us on the web at www.talkingbus.com or contact us at 1-800-222-9583. “The Transit Market's choice for automated voice announcement systems and related products and services." ™ Yours Truly, Tanya L. Johnson General Manager and Vice President
Wireless Data Transfer SECTION 1 1-1 GENERAL INFORMATION 1.1 ABOUT THIS MANUAL This manual describes the theory of operation, system components, connections, and checkout procedure for the Digital Recorders Wireless Data Transfer option, which is an add-on to the DR500C ‘Talking Bus’ product. 1.2 ABOUT THE WIRELESS DATA TRANSFER OPTION 1.2.1 INTRODUCTION The Wireless Data Transfer option enables data to be wirelessly transmitted within a localized area between one or more base-station PC’s and vehicle-mounted DR500C ‘Talking Bus’ units. Depending upon system configuration, data transfer may be one-way (vehicles to PC or vise-versa) or two-way communication. This wireless communication link eliminates the need to physically transport the associated data to and/or from each vehicle via a PCMCIA card or other media. Wireless communication is provided using 2.4Ghz, Spread Spectrum Frequency Hopping (SSFH) technology. This technology provides high speed, secure, and reliable communication which is highly immune to outside interference. 1.2.3 THEORY OF OPERATION In addition to the standard ‘Talking Bus’ equipment, each Wireless Data Transfer-enabled vehicle contains a 2.4Ghz SSFH wireless modem, antenna, and associated hardware. A localized area on the transit property where the equipped vehicles congregate (such as the vehicle refueling area or garage) is identified and a centralized computer (with wireless modem, antenna, and associated hardware - collectively known as the wireless base-station), is installed at the location. For operational or coverage purposes, there may be more than one base-station installed at each location, or base-stations may be installed at multiple locations such as separate garages. In a typical vehicle yard there is a consistent manner in which the vehicles arrive for nighttime storage. Each vehicle arrives, one by one, at a fare collection, refueling, and/or washing station where it is serviced for a number of minutes. Afterwards, each continues to a yard or garage where it is parked along side all of the other vehicles and stored for the night.
Wireless Data Transfer SECTION 1 1-2 These two areas (fare/fuel/wash and yard/garage) are typically co-located and within a few hundred yards of each other. Depending upon system configuration, the two locations described above may combine to define a single large wireless transmission area, or instead be considered two separate communication points, each with a separate base-station or set of stations. In the case of data download from the vehicle to the base-station (such as AVM data), the data will typically be downloaded at the fare/fuel/wash station area. Where physically possible, the yard/garage storage area may also be included to enable downloads to continue as the vehicles are parked. As each vehicle enters the download area, a full duplex communication link with the base-station is established. Up to four vehicles may communicate with a single base-station simultaneously and at full speed. If four vehicles are in the process of downloading data when additional vehicles enter the area, the entering vehicles are placed in a queue. Additional base-stations may be added to scale the number of simultaneous downloads. A day’s worth of AVM data will typically consist of less than 1MB of data, which should complete in under 5 minutes time per vehicle. If uploading of data (such as route changes) to the vehicles is also configured, then the yard/garage area is defined as a second communication point. A separate base-station is located in this area and dedicated to the data upload to vehicles. In the case of a card update, a large amount of identical information (20+MB) is typically broadcast to each of the vehicles. This upload is accomplished in a cyclical broadcast mode, where the data is transmitted repeatedly over the entire night as the vehicles arrive and are stored, giving each vehicle several opportunities to acquire the entire message. The onboard vehicle equipment is configured to remain powered until completing its download, after which it shuts itself down automatically. Figure 1 below illustrates the above two wireless locations and the data transfer that occurs at each.
Wireless Data Transfer SECTION 1 1-3 Figure 1: Typical Wireless Base-station configuration.
Wireless Data Transfer SECTION 2 2-1 COMPONENT LIST & DRAWINGS 2.1 INTRODUCTION This chapter lists the major components of the Wireless Data Transfer Option, and contains drawings for the hardware components. In most cases the equipment will be pre-installed and wired by the vehicle OEM manufacturer, or by a certified Digital Recorders installation technician. 2.2 COMPONENT LIST Following is a list of the major components of the Wireless Data Transfer Option. Complete component list and quantities of each will vary per transit property dependent upon installation, number of vehicles, number of base-stations, etc. DR PART # DESCRIPTION ON VEHICLE 901-1700-000 Module, PX3 with Wireless 941-5220-000 Cable, PX3 To VLU, Comm 801-5207-000 Antenna Assembly, Vehicle 941-5207-020 Cable, Wireless Modem Antenna BASE-STATION 941-5213-000 RS485 Cable, PX3 to Base-station, Comm 801-5210-000 Antenna Assembly, Base-station 290-0003-000 RS485 Adapter, Comm, Async, 1 Port 530-0001-024 Power Block, 24VDC, 10W 530-0002-700 UPS, Triplite 700VA, Omnismart PNP 575-0002-000 Software, Wireless/AVM Bundle 597-0002-000 Manual, Wireless Data Transfer Option 2.3 COMPONENT DRAWINGS Following are sample mechanical drawings for the major hardware components of the Wireless Data Transfer Option. Actual components may vary per transit property dependent upon installation, etc.
HGFEDCBA87654321HGFEDCBA87654321SIZE PROJECT NO. DWG NO REVA 1700 AA-901-1700-000 ASCALE NONE SHEET 1 OF 1TITLEAssembly, PX3/Wireless Modem ModuleREVISED6/4/01FILENAME901-1700-000_A.VSDDRAW N BY JDKDATE2/28/004900 PROSP ECTUS DR. STE. 1000P.O. BOX 14068RESEARCH TRIANGLE PARK, NC 27709-4068 USA1-800-222-9583 FAX (919)361-2947TxRxStatusJ3 - POWERP2 - VLUP/N 901-1700-000DIGITAL RECORDERSPX3 WIRELESSMODEM MODULERangeP3232/232/PWR/1708P1232DIGITAL RECORDERSPX3/WIRELESS MODEM 901-1700-000ANTENNA5.906.834.735.110.176 x 0.567 SLOT4 PLACESAPPLY ID LABELTHIS SIDE
5544332211D DC CB BA ASHIELDSHIELDDRAIN WIREDRAIN WIREDRAIN WIREDRAIN WIREJ7DB9 MALEJ4DB9 FEMALEP2DB15 FEMALE941-5220-000REV A (datecode)DR500C J4941-5220-000REV A (datecode)DR500C J7941-5220-000REV A (datecode)WIRELES P2SEE BOM # BA-941-5220-000 FOR MATERIAL LISTCABLE 'A'CABLE 'A'CABLE 'B'CABLE 'B'OVERALL LENGTH = 22 INCHES +/- 2 INCHESDIGITAL RECORDERS, A DRI COMPANYLABELLABELLABELMA-941-5220-000 ACABLE, PX3-VLU (232/1708)A11Monday, March 26, 2001TitleSize Document Number RevDate: Sheet ofDCDDCDRXDRXDTXDTXDDTRDTRGNDGNDRTSRTSCTSCTSRI RIJ1708B J1708BJ1708AJ1708AP2DB15 FEMALE815714613512411310291J7DB9 MALE594837261J4DB9 FEMALE594837261
HGFEDCBA87654321HGFEDCBA87654321SIZE PROJECT NO. DWG NO REVA MA-801-5207-000_C CSCALE SHEET1 OF 1TITLE2.4GHZ WIRELESS MODEM ANTENNAREVISED3/28/01FILENAMEMA-801-5207-000_C.VSDDRAWN BYSBHDATE3/26/014018 PATRIOT DRIVE, SUITE 100P.O. BOX 14068RESEARCH TRIANGLE PARK, NC 27709 USA1.800.222.9583 FAX 919.361.2947www.talkingbus.comTMA DRI CompanyTHIS DRAWING IS THE PROPERTY OF DIGITAL RECORDERS,INC.,WHO RETAINS ALL PATENT, PROPRIETARY DESIGN, USE, SALE,AND PRODUCTION RIGHTS. IT MAY NOT BE REPRODUCED ORUSED AS THE BASIS FOR MANUFACTURE OR SALE OF APPARATUSWITHOUT PERMISSION.NOTES:ALL DIMENSIONS IN INCHES5/8" MOUNTING HOLE REQUIRED1/2" MAXIMUM MOUNTING THICKNESSN-TYPE FEMALE JACK CONNECTION1.800.691.310.061.170.50 MAXPLATE THICKNESSTYPE N FEMALE - JACK5/8 - 24 UNEFNEOPRENE WASHERØ 1.441 1/8 - 18 UNEF EXTERNAL THREAD MOUNT TO ANTENNA BODY
HGFEDCBA87654321HGFEDCBA87654321SIZE PROJECT NO. DWG NO REVA MA-941-5207-020 CSCALENONESHEET1 OF 1TITLECABLE, ANTENNA, 2.4GHZ, SMA-N, 20 FEETREVISED4/5/01FILENAMEMA-941-5207-020_C.VSDDRAWN BYJDKDATE4/2/014018 PATRIOT DRIVE, SUITE 100P.O. BOX 14068RESEARCH TRIANGLE PARK, NC 27709 USA1.800.222.9583 FAX 919.361.2947www.talkingbus.comTMA DRI CompanyTHIS DRAWING IS THE PROPERTY OF DIGITAL RECORDERS,INC.,WHO RETAINS ALL PATENT, PROPRIETARY DESIGN, USE, SALE,AND PRODUCTION RIGHTS. IT MAY NOT BE REPRODUCED ORUSED AS THE BASIS FOR MANUFACTURE OR SALE OF APPARATUSWITHOUT PERMISSION.20 FT +/- 3 IN.CABLE, COAXTimes Microwave LMR-240or Approved Equivalent(O.D. = 0.240 IN)Plug, Male, SMAfor LMR-240 CableTo 2.4GHzAntenna To PX3/WirelessModem (DVAS Assy)LABELDRI P/N 941-5207-0202.4 GHZ ANTENNALABELNote:Labels to be positioned within 12"of cable ends shown (both labels).Connector, Rt. AngleType-N, Male, forLMR-240 CableDRI P/N 941-5207-020WIRELESS MODEMHeatshrink tubing Heatshrink tubing
NOTE:RED/WHITE PAIR TO BE PULLED BACK FROM DB-25 END 6", INSERTED INTO EXPANDABLE TUBING,AND HEATSHRINK APPLIED AT JUNCTION.DRAIN WIRE SOLDERED TO DB25, DB15 CONNECTOR SHELLS.DB-15 CONNECTOR END TO BE ASSEMBLED AT INSTALL LOCATION.HGFEDCBA87654321HGFEDCBA87654321SIZE PROJECT NO. DWG NO REVA MA-941-5213-000 ASCALENONESHEET1 OF 1TITLECABLE, DATA+PWR, PX3 MODULE, BASESTATION MODEREVISED5/7/01FILENAMEMA-941-5213-000_A.VSDDRAWN BYSBHDATE4/2/014018 PATRIOT DRIVE, SUITE 100P.O. BOX 14068RESEARCH TRIANGLE PARK, NC 27709 USA1.800.222.9583 FAX 919.361.2947www.talkingbus.comTMA DRI CompanyTHIS DRAWING IS THE PROPERTY OF DIGITAL RECORDERS,INC.,WHO RETAINS ALL PATENT, PROPRIETARY DESIGN, USE, SALE,AND PRODUCTION RIGHTS. IT MAY NOT BE REPRODUCED ORUSED AS THE BASIS FOR MANUFACTURE OR SALE OF APPARATUSWITHOUT PERMISSION.Rx+Rx-CTS+CTS-Tx+Tx-RTS+RTS-DTR+DTR-+24VDCGNDWHITEBLACKGREENBLACKBLUEBLACKYELLOWBLACKBROWNBLACK202341921451331615811312410291BLACK53REDSHIELDSHIELD 131DB25(RS-422 CARD)DB15(PX3 P2 CONN.)SWITCHCRAFT(POWER SUPPLY)DB25FEMALEDB15FEMALESWITCHCRAFT3-POS. MALE8 2 B292 BRADY: REFERENCE ID LABEL6 1 TA3M SWITCHCRAFT: 3 POS. MALE CON.5 2 1-747579-1 AMP: STEPPED FERRULE (.324-.375)ITEM QTY. MFG. PART # MFG: DESCRIPTION4 1 748049-1 AMP: HD-20 DB15 FEMALE CON. KIT3 1 748051-1 AMP: HD-20 DB25 FEMALE CON. KIT1 TBD 6377 ALPHA: 6 PAIR, FOIL/BRAID (22 AWG)LENGTH TO BE DETERMINED AT INSTALLATION6 +/-1 IN.3 1 4 556LABEL LABEL887 N/A N/A HEATSHRINK TUBING2 6" GRP-110NF14 ALPHA: .25" DIA. EXPANDABLE TUBING277DRI P/N 941-5213-000BASESTATION PCDRI P/N 941-5213-000BASESTATION MODEM
HGFEDCBA87654321HGFEDCBA87654321SIZE PROJECT NO. DWG NO REVA MA-290-0003-000_A ASCALE SHEET1 OF 1TITLERS485 ADAPTER, COMM, ASYNC, 1 PORTREVISED5/24/01FILENAMEMA-290-0003-000_A.VSDDRAWN BYSBHDATE5/24/014018 PATRIOT DRIVE, SUITE 100P.O. BOX 14068RESEARCH TRIANGLE PARK, NC 27709 USA1.800.222.9583 FAX 919.361.2947www.talkingbus.comTMA DRI CompanyTHIS DRAWING IS THE PROPERTY OF DIGITAL RECORDERS,INC.,WHO RETAINS ALL PATENT, PROPRIETARY DESIGN, USE, SALE,AND PRODUCTION RIGHTS. IT MAY NOT BE REPRODUCED ORUSED AS THE BASIS FOR MANUFACTURE OR SALE OF APPARATUSWITHOUT PERMISSION.
HGFEDCBA87654321HGFEDCBA87654321SIZE PROJECT NO. DWG NO REVA MA-530-0001-024 ASCALE SHEET1 OF 1TITLEPOWER SUPPLY, PX3, BASESTATION MODEREVISED6/1/01FILENAMEMA-530-0001-024_A.VSDDRAWN BYSBHDATE4/30/014018 PATRIOT DRIVE, SUITE 100P.O. BOX 14068RESEARCH TRIANGLE PARK, NC 27709 USA1.800.222.9583 FAX 919.361.2947www.talkingbus.comTMA DRI CompanyTHIS DRAWING IS THE PROPERTY OF DIGITAL RECORDERS,INC.,WHO RETAINS ALL PATENT, PROPRIETARY DESIGN, USE, SALE,AND PRODUCTION RIGHTS. IT MAY NOT BE REPRODUCED ORUSED AS THE BASIS FOR MANUFACTURE OR SALE OF APPARATUSWITHOUT PERMISSION.APPROX. 6 FT.132+24VDC(BLK/WHT)GROUND(BLK)CONNECTOR DETAIL(SWITCHCRAFT TA3F)DC POWER OUT(+24VDC)AC POWER IN(120/240VAC, 60/50Hz)
HGFEDCBA87654321HGFEDCBA87654321SIZE PROJECT NO. DWG NO REVA 530-0002-700 ASCALE SHEET1 OF 1TITLEUPS, TRIPLITE 700VA, OMNISMART PNPREVISED5/25/01FILENAMEMA-530-0002-700_A.VSDDRAWN BYSBHDATE5/24/014018 PATRIOT DRIVE, SUITE 100P.O. BOX 14068RESEARCH TRIANGLE PARK, NC 27709 USA1.800.222.9583 FAX 919.361.2947www.talkingbus.comTMA DRI CompanyTHIS DRAWING IS THE PROPERTY OF DIGITAL RECORDERS,INC.,WHO RETAINS ALL PATENT, PROPRIETARY DESIGN, USE, SALE,AND PRODUCTION RIGHTS. IT MAY NOT BE REPRODUCED ORUSED AS THE BASIS FOR MANUFACTURE OR SALE OF APPARATUSWITHOUT PERMISSION.+-+-OFF ON MUTE / TESTSURGEPROTECTIONAND UPSBATTERYBACKUPSURGEPROTECTIONONLY10.5"4.5" 7"FRONT SIDE REAR
DR500C+VLUJ5/RS232BJ4/RS232A PX3/WirelessModem ModuleJ7/J1708CJ9/RS485D Fanout Cable, J1708Int.SignTwin VisionIO ControlsGatewayModuleSAMPLE SYSTEM ARCHITECTUREPX3 MODULE, VIA EXTERNAL RELAY (NOTSHOWN) CONTROLS POWER TO VLU, GPS,AND K-60 OCU.On-vehicleEquipmentPX3/WirelessModem ModuleRS485CommAdapter(PCI)BaseStationSoftware24VDCPower BlockBase StationEquipmentHGFEDCBA87654321HGFEDCBA87654321SIZE PROJECT NO. DWG NO REVA NoneSCALE SHEET 1 OF 1TITLEWIRELESS TRANSFER OPTION SYSTEM ARCHITECTUREREVISED6/4/01FILENAMESYSTEM ARCHITECTURE.VSDDRAW N BYJDKDATE4/24/014018 PATRIOT DRIVE, SUITE 100P.O. BOX 14068RESEARCH TRIANGLE PARK, NC 27709 USA1.800.222.9583 FAX 919.361.2947www.talkingbus .comTM A DR I C o mp a nyTHIS DRAWING IS THE PROPERTY OF DIGITAL RECORDERS,INC.,WHO RETAINS ALL PATENT, PROPRI ETARY DESIGN, USE, SALE,AND PRODUCTION RIGHTS. IT MAY NOT BE REPRODUCED ORUSED AS THE BASIS FOR MANUFACTURE OR SALE O F APPARATUSWITHOUT PERMISSION.UPSWindowsPC withPCI slotsGPSBase StationAntenna AssemblyVehicle WirelessAntenna AssemblyGPS AntennaMFSwitchcraft TA3connectorsOCULT-2OCUK-60Panel-Mt
Wireless Data Transfer SECTION 3 3-1 COMPONENT CONNECTIONS 3.1 INTRODUCTION This chapter describes the major component connections of the Wireless Data Transfer Option. NOTE: The equipment comprising your Wireless Transfer Option should have been pre-installed by the OEM vehicle manufacturer and/or by Digital Recorders certified installation technicians. Installation may vary significantly from one location to another. The following instructions are therefore basic in nature and designed only to assist in understanding the system or for individual component replacement. WARNING: Changes or modifications not expressly approved by Digital Recorders, Inc. may void the user’s authority to operate this equipment. 3.2 ON-VEHICLE EQUIPMENT The Wireless Data Transfer Option on-vehicle equipment includes the following five basic components: 1. Wireless Modem Module 2. Power harness 3. Data communications cable 4. Antenna cable 5. Antenna assembly Note that item 2, power harness, is potentially different for each installation and is therefore is not described in detail in this manual. The Wireless Modem Module (DR P/N 901-1700-000) is an enclosure which houses a wireless modem, controlling electronics, and expanded serial ports for the DR500C. It also ‘fans out’ (duplicates) the DR500C J1708 communication port. Typically the module will be found mounted on a plate along with the DR500C and other supporting electronics.
Wireless Data Transfer SECTION 3 3-2 The modem module is powered by a power harness (unique to each installation) via the 9-pin CPC connection J3. This connection also provides relay control to automatically shutdown power to the DR500C once data transfer has completed. Serial communication between the modem module and the DR500C is performed via a data cable (DR P/N 941-5220-000). The DB-15 end of this cable connects to the modem module port P2. The other end of the cable has two connections: the DB-9 female is for RS232 communications and connects to the DR500C port A (J4), while the DB-9 Male is for J1708 ‘fan out’ and connects to the DR500C port C (J7). Thumbscrews for each connector should be securely fastened. The antenna cable (DR P/N 941-5207-020) is connected to the wireless modem module via its SMA connection marked “Antenna”. The SMA connector should be screwed on clockwise and firmly hand-tightened The vehicle antenna assembly (DR P/N 801-5207-000) is typically mounted on the roof above the driver’s area of the vehicle via a 5/8” mounting hole. The antenna assembly terminates within the interior of the vehicle with a Type-N connector, to which the right-angle mating end of the antenna cable is connected and firmly hand-tightened in a clockwise fashion. WARNING: To satisfy FCC RF exposure requirements for mobile transmitting devices, a separation distance of 32cm or more should be maintained between the antenna of this device and persons during device operation. To ensure compliance, operations at closer than this distance is not recommended.
Wireless Data Transfer SECTION 3 3-3 3.3 BASE-STATION EQUIPMENT The Wireless Data Transfer Option base-station equipment includes the following eight basic components: 1. Wireless Modem Module 2. Antenna cable 3. Base-station antenna assembly 4. RS485 communications / power cable 5. RS485 PCI adapter 6. 24VDC power supply 7. Uninterruptible Power Supply (UPS) 8. PC with software The wireless modem module and antenna cable are identical to those which are used on the vehicle and described in the previous section. The antenna cable is connected to the module via a SMA connector. The other end of the antenna cable is connected to the Base-station antenna assembly via Type-N connector. The base-station antenna, antenna cable, and modem module are mounted in a location which provides the best “top-down” line-of-sight view of the vehicles within its intended zone of communication. Base-station antenna type will vary per installation depending upon mounting location and coverage pattern requirements. Typical mounting locations include the roof of a building, a well-positioned wall, a tall pole, or the center ceiling of a covered garage area. The antenna must be securely fastened, and if in an outside location it must be properly grounded for lightning strike protection. WARNING: To satisfy FCC RF exposure requirements for mobile transmitting devices, a separation distance of 32cm or more should be maintained between the antenna of this device and persons during device operation. To ensure compliance, operations at closer than this distance is not recommended. Communication from the base-station PC and DC power are delivered via the RS485 cable (DR P/N 941-5213). This cable is built to length for each installation, and can be run up to 1000 feet without compromising data integrity. Depending upon installation location, this cable may be routed through conduit, underground, etc. The cable connects to the Wireless Modem Module port P2 via
Wireless Data Transfer SECTION 3 3-4 its male DB-15 connector, and terminates at the base-station PC end in a male DB-25 connector (data) and male Switchcraft “TA3M” connector (power). The base-station PC contains a 485 PCI communications card (DR P/N 290-0003-000), to which the male DB-25 data connector of the RS485 cable is connected. Both thumbscrews on the connector should be hand tightened. A small wall “plug-style” 24VDC power block (DR P/N 530-0001-024) supplies DC power to the modem module. It connects to the RS485 cable at the base-station PC end via its female Switchcraft “TA3F” connector. Press down on the top-mounted button to disconnect, and push the two ends together until a “click” is heard to re-connect. Both the 24VDC power block and the base-station PC should be plugged into the 700VA UPS (DR P/N 530-0002-700), which in turn plugs into a standard 120VAC outlet. The UPS (Uninterruptible Power Supply) provides battery backup during short (<15 minute) AC power outages, spikes, or “brownouts”. This ensures that such occurrences will not affect communication with the vehicles. Both the PC and the power block must be plugged into the UPS outlets labeled “BATTERY/SURGE & NOISE PROTECTED OUTLETS’ (right side outlets as viewed from the rear) to be protected from full power outages. Digital Recorders suggests plugging the PC monitor and other peripherals into the left side outlets, which are only surge protected, to maximize battery backup time of the PC and modem during complete power failures.
Wireless Data Transfer SECTION 4 4-1 CHECKOUT PROCEDURE 4.1 INTRODUCTION This chapter contains a basic checkout procedure for the vehicle mounted wireless equipment. For checkout information regarding the base-station equipment, please refer to its separate documentation. 4.2 VEHICLE MOUNTED EQUIPMENT CHECKOUT To confirm operation of the vehicle mounted equipment, perform the following: 1. Turn on vehicle and wait for ‘Talking Bus’ equipment to boot (OCU will prompt for route login). 2. Observe the front panel of the wireless modem module. A vertical row of four LED’s is located on this panel. The LED’s are, from top to bottom, “Status”, “Range”, “Rx”, Tx”. Figure 2: Wireless Modem Module Front Panel 3. The “Status” LED will flash when power is applied to the unit and it is functioning properly. If solidly lit or unlit, disconnect the J3 power connector, wait five seconds, then reconnect. If the LED still does not blink, contact Digital Recorders for further testing instructions. 4. If the vehicle is within communication range of the base-station, the “Range” LED should be lit. If not lit, first check that the vehicle is well within the receiving range of the base-station antenna (typically <1000 feet, without major structures between). Second, check that the antenna cable is firmly attached to the back of the unit. Third, ensure that the
Wireless Data Transfer SECTION 4 4-2 opposite end of the cable is firmly attached to the antenna assembly mounted on the roof of the vehicle. Lastly, verify that the base-station and related software are powered and running correctly. 5. The Rx and Tx LED’s will flash to indicate data being received or transmitted, respectively. For further information or troubleshooting assistance, please contact Digital Recorders technical support at: 1 – 800 – 222 – 9583 Mon. – Fri. 8:30am – 5:30pm EST

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