HARRIS TR-307-D2 Licensed Mobile Basestation Transmitter User Manual Manual

HARRIS CORPORATION Licensed Mobile Basestation Transmitter Manual

Manual

MM101271V1 R1AMaintenance ManualSiteProController Shelf AssemblyEA101209V1
NOTICE!The voice coding technology embodied in this product is protected by intellectual property rights including patent rights,copyrights, and trade secrets of Digital Voice Systems, Inc. The user of this technology is explicitly prohibited fromattempting to decompile, reverse engineer, or disassemble the Object Code, or in any other way convert the Object Codeinto a human-readable form.NOTICE!This manual covers products manufactured and sold by Com-Net Ericsson Critical Radio Systems, Inc.NOTICE!Repairs to this equipment should be made only by an authorized service technician or facility designated by thesupplier. Any repairs, alterations or substitution of recommended parts made by the user to this equipment notapproved by the manufacturer could void the user's authority to operate the equipment in addition to themanufacturer's warranty.NOTICE!The software contained in this device is copyrighted by Com-Net Ericsson Critical Radio Systems, Inc. Unpublishedrights are reserved under the copyright laws of the United States.This manual is published by Com-Net Ericsson Critical Radio Systems, Inc., without any warranty. Improvements and changes to this manualnecessitated by typographical errors, inaccuracies of current information, or improvements to programs and/or equipment, may be made by Com-NetEricsson Critical Radio Systems, Inc., at any time and without notice. Such changes will be incorporated into new editions of this manual. No part ofthis manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, for anypurpose, without the express written permission of Com-Net Ericsson Critical Radio Systems, Inc.EDACS is a registered trademark, and Aegis, ProVoice and SitePro are trademarks of Com-Net Ericsson Critical Radio Systems, Inc.2MM101271V1 R1A
Copyright August 20001, Com-Net Ericsson Critical Radio Systems, Inc. All rights reserved.MM101271V1 R1A 3
TABLE OF CONTENTSTABLE OF CONTENTS PageMM101271V1 R1A 4
TABLE OF CONTENTS1.0SPECIFICATIONS1......................................................................................................................72.0RELATED PUBLICATIONS.........................................................................................................83.0SAFETY SYMBOLS.....................................................................................................................94.0INTRODUCTION........................................................................................................................104.1APPLICATIONS.......................................................................................................................................104.2COMMUNICATIONS..............................................................................................................................114.3COMPATIBILITY AND MIGRATION...................................................................................................124.4SYSTEM EXTERNAL INTERFACES.....................................................................................................124.4.1Station Control.......................................................................................................................................124.4.2Simulcast Control...................................................................................................................................144.4.3Conventional Control.............................................................................................................................154.4.4Voter Control..........................................................................................................................................154.4.5Asynchronous Serial Ports.....................................................................................................................164.4.6Synchronous Serial Ports.......................................................................................................................164.4.7Power.....................................................................................................................................................1611.DESCRIPTION...........................................................................................................................185.1INDICATORS AND CONTROLS............................................................................................................185.1.1Indicators...............................................................................................................................................185.1.2Controls..................................................................................................................................................195.2ROCKWELL MODEM.............................................................................................................................195.3LOW SPEED AND HIGH SPEED DATA FILTERS................................................................................205.3.1Low Speed Data Decode Filter..............................................................................................................205.3.2High Speed Data Encode Filter.............................................................................................................205.4INTERFACE CONNECTIONS................................................................................................................205.5COMMUNICATION LINKS....................................................................................................................216.0CIRCUIT ANALYSIS..................................................................................................................246.1SHELF ASSEMBLY.................................................................................................................................246.2INTERCONNECT BOARD (A1)..............................................................................................................266.3CONTROLLER BOARD (A2)..................................................................................................................266.3.1Block Diagram.......................................................................................................................................266.3.2System I/O..............................................................................................................................................266.3.3Blackplane..............................................................................................................................................326.3.4CPU........................................................................................................................................................366.3.5Modem Daughter Board Connector.......................................................................................................386.4.5Electrically Programmable Logic Device (EPLD)................................................................................396.7Ethernet Ports...........................................................................................................................................396.4.6I2C Bus...................................................................................................................................................406.4.7Memory...................................................................................................................................................416.5...................................................................................................................MODEM DAUGHTER BOARD 426.1Modems.....................................................................................................................................................456.23.3V/5V Interface......................................................................................................................................456.3Microprocessor.........................................................................................................................................456.4Code Memory............................................................................................................................................466.5Data Memory.............................................................................................................................................466.6Dual Port Ram..........................................................................................................................................466.7Troubleshooting Aids................................................................................................................................476.4ROCKWELL MODEM INTERFACE CARD (A3)...................................................................................487.0QIUCC Connector.....................................................................................................................................486.2Dual Port RAM..........................................................................................................................................486.3Microcontroller.........................................................................................................................................486.48-bit Latch.................................................................................................................................................486.5Address Buffer...........................................................................................................................................486.6Data Buffer................................................................................................................................................486.7Code SRAM...............................................................................................................................................486.8Data SRAM................................................................................................................................................48MM101271V1 R1A 5
6.9Page Connections......................................................................................................................................486.10Address Decoder.....................................................................................................................................486.11Diagnostic Connector.............................................................................................................................486.123/5 Converter...........................................................................................................................................486.13I/O Connector..........................................................................................................................................496.14RF Modem...............................................................................................................................................496.15PL Modem...............................................................................................................................................496.16VDI Modem.............................................................................................................................................496.4ANALOG BOARD (A4)............................................................................................................................506.5.1Quad ADC and Single DAC...................................................................................................................506.5.28-Bit I/O Expander for I2C Bus.............................................................................................................506.5.3–5 Volt Generation.................................................................................................................................506.5.4High-Speed Data Transmit Filters.........................................................................................................516.4.49600 Baud Narrow Band.......................................................................................................................526.5.68:1 MUX.................................................................................................................................................526.5.7Dual Digital Pot.....................................................................................................................................526.5.8Inverting Buffer/Amplifier......................................................................................................................526.5.9Analog Switch.........................................................................................................................................526.5.8Clock Generation...................................................................................................................................526.5.9Low Speed Data Decoder Filter............................................................................................................536.5.10Low Speed Data Encode Filter............................................................................................................536.6POWER SUPPLY (A5).............................................................................................................................536.7MISCELLANEOUS INFORMATION.....................................................................................................546.7.1Serial Port Data Format........................................................................................................................546.7.2Failsoft Data Format.............................................................................................................................546.7.3T1/E1 Interface.......................................................................................................................................546.7.4Phone Port Data Format.......................................................................................................................547.0INSTALLATION..........................................................................................................................558.0CONFIGURATION.....................................................................................................................569.0PROGRAMMING.......................................................................................................................5710.0TROUBLESHOOTING.............................................................................................................5811.0LIGHTNING PROTECTION GROUNDING.............................................................................5912.0GLOSSARY..............................................................................................................................6113.0PARTS LIST.............................................................................................................................6214.0IC DATA...................................................................................................................................8613.1CONTROLLER BOARD (A2)................................................................................................................866.8MODEM DAUGHTER BOARD (A8)....................................................................................................1036.9ROCKWELL MODEM INTERFACE CARD (A3).................................................................................1066.10ANALOG FILTER BOARD (A4).........................................................................................................107
6MM101271V1 R1A
SPECIFICATIONS1.0 SPECIFICATIONS1INPUT VOLTAGE +13.8±20% VDCCURRENT DRAINWithout 9600 baud modem 900ma (typical), 1.5 Amps (maximum)With 9600 baud modem 1.5 Amps (typical), 2 Amps (maximum)OPERATING TEMPERATURE -22°F to +140°F (-30°C to +60°C)DIMENSIONS (H x W) 1.75 x 19 inches (4.5 x 48.3 cm)DATA TRANSMISSIONHigh Speed 9600 ±1bps (EDACS Wideband)4800 ±1bps (EDACS Narrow band)Low Speed 150 ±1bpsCOMMUNICATION INTERFACESite Controller (trunked)Protocol RS-232CData Format 1 start bit, 1 stop bit, and 8 data bitsData Rate 19.2 kilobaudBack-up Serial Link (Failsoft)Data Levels 0 to 13.8 VDC swing (nominal)Data Format 1 start bit, 1 stop bit, and 8/9 data bitsData Rate 19.2 kilobaud1 These specifications are intended to be used by the service technician during servicing. Refer to the appropriateSpecification Sheet for the complete Specification.MM101271V1 R1A 7
RELATED PUBLICATIONS2.0 RELATED PUBLICATIONSThe SitePro Controller trunking shelf is used in several applications, broadly includingVoting, EDACS®, Aegis, and Digital Voice. In each of these applications the sameSitePro Controller shelf is used, however, the Logic Board operates differently becauseof different jumper configuration, interfacing hardware, and software. Refer to theappropriate Com-Net Ericsson technical publication for additional information on eachapplication as follows:Publication TitleMM101343V1 SitePro Installation ManualMM#######V1 Rockwell Modem ROA 117 2247LBI-31981 Digital Voice Voting Tone Board Maintenance ManualLBI-38462 EDACS Voter Interface Board Maintenance ManualLBI-38896 EDACS Site Downlink and CEC/IMC Uplink ConfigurationManualMM#######V1 EDACS Voter Digital Receiver and Selector ProSiteConfiguration ManualLBI-38985 EDACS Site Controller Maintenance ManualMM#######V1 SitePro Conventional Network Interface (CNI) ConfigurationManualMM#######V1 EDACS Single Channel Autonomous Trunking (SCAT) SiteProand Downlink SitePro Configuration ManualMM#######V1 EDACS Station ProSite Configuration ManualMM#######V1 EDACS Test Unit and Alarm Interface (TUAI) SiteProConfiguration Manual.LBI-39004 EDACS Guardog Installation and Operation ManualMM#######V1 SitePro Shelf Programming ManualMM101271V1 R1A 8
SAFETY SYMBOLS3.0 SAFETY SYMBOLSWARNINGThe WARNING symbol calls attention to a procedure, practice, or the like,which, if not correctly performed or adhered to, could result in personalinjury. Do not proceed beyond a WARNING symbol until the conditionsidentified are fully understood or met.CAUTIONThe CAUTION symbol calls attention to an operating procedure, practice, orthe like, which, if not performed correctly or adhered to, could result indamage to the equipment or severely degrade the equipment performance.NOTEThe NOTE symbol calls attention to supplemental information, which mayimprove system performance or clarify a process or procedure.hThe ESD symbol calls attention to procedures, practices, or the like, whichcould expose equipment to the effects of Electro-Static Discharge. Properprecautions must be taken to prevent ESD when handling circuit modules.9MM101271V1 R1A
4.0 INTRODUCTIONThe Com-Net Ericsson Critical Radio Systems group has developed a MotorolaPowerQuicc-based CPU to replace the 8051-based GETC board due to memorylimitations. In addition to replacing the functionality of the GETC module, othercapabilities have been added. including support of ethernet.This manual provides maintenance and servicing information for Com-Net EricssonSitePro Controller Shelf Assembly EA101209V12. Production versions of this shelfconsist of the following components:•Shelf Assembly MA101080V1Chassis MA101080V2•Interconnect Board Assembly (A1) CB101073V1•Controller board Assembly (A2) CD101069V1•Modem Daughter Board (A8) CB101074V1•Rockwell Modem InterfaceCard Assembly (A3) ROA 117 2247Rockwell Modem Assembly (A7) RYTUZ 921 01/1•Analog Board (A4) CB101070V1•Power Supply Module (A5) CONDOR DP1719•Display Module (A6) MA101082V1Display Board Assembly (A6-A1) CB101077V1Cable (A6-W1) CA101222V1•Input Cable to the Power Supply (W1) CA101211V1•Output Cable from the Power Supply (W2) CA101212V1•Data Cable (W#) CA101213V14.1APPLICATIONSThe SitePro Controller can be installed and programmed for several different stationapplications. The basic programming is for the Station Trunking Shelf. This shelfenables the station to function as part of an EDACS trunked communication system byproviding digital signaling and transmitter control of the associated base station. Inaddition, the SitePro Controller provides an interface between the base station repeater,the Site Controller or Site Interface Module (SIM) and other channel SiteProController(s) at the same time.By reconfiguring the SitePro Controller shelf hardware and programming the operationthrough the programming port, located on the front panel, the SitePro Controller can beused as an/a:•Uplink/Downlink – Configured as either an Uplink or Downlink, the SiteProController provides the communications link between the Transmit Site and theCEC/IMC switch.2The Service Technician(s) should always consult application manuals, Software Release Notes (SRN), and SpecificCustomer information provided with the system whenever the equipment requires service or repair.10 MM101271V1 R1A
•SCAT –TheSitePro Controller can be programmed to provide command andcontrol of a Single Channel Autonomous Trunking (SCAT) Site.•CNI –ProgrammedasaConventional Network Interface (CNI), the SiteProController provides the communication link between a conventionalcommunications site (analog) and an EDACS trunking system (digital).•Satellite Receiver –TheSitePro Controller can be programmed to providecommand and control of Satellite (Auxiliary) Receivers and communication to theVoter Digital Receiver.•Voter Digital Receiver –TheSitePro Controller can be programmed to processdigital data from Satellite Receiver SitePro Controller(s) for input to the VoterSelector.•Voter Selector –TheSitePro Controller can be programmed to control the votingprocesses and select the sites with the best signals.•VDI – Programmed as a Voter Digital Interface, the SitePro Controller provides apath for Voter and Simulcast systems to the Jessica PBX system when making digitalcalls.•Simulcast Control Point and Tx Site – The SitePro Controller can beprogrammed to provide Simulcast system command and control.34.2COMMUNICATIONSThe following communication modes are available:1. The SitePro Controller can communicate with Personal Computers (PC’s) throughethernet ports J5 and J6.2. The SitePro Controller can communicate with other devices, such as SiteControllers or the CEC/IMC switch, through the Serial Ports at J14, using an RS-232serial data format operating at 19.2 kilobaud. Connector J14 provides connection to 6telephone lines and 6 serial ports.3. The SitePro Controller can communicate with other SitePro Controller(s) in theFailsoft or Enhanced mode, over two Backup Serial Links (BSL)ortwoRockwellModems (RM’s) through connector J4. This link uses 0-13.8 VDC levels at 19.2kilobaud.4. The SitePro Controller uses the Frame Sync Line (FSL), also through connectorJ4, to communicate timing between SitePro Controllers. This line uses a 0-13.8VDC bus that carries a periodic negative pulse.5. A 9600 or 4800 baud full-duplex, synchronous communication interface over an RFChannel.6. The SitePro Controller can use synchronous modem data to communicate withother sites via telephone lines or microwave links.7. The SitePro Controller interfaces with an Enhanced Digital Access CommunicationSystem (EDACS) through 24 Pin connector J12.8. Power is connected to the SitePro Controller through 4 Pin POWER connector J7.3 Installation and configuration of Simulcast SitePro Controllers is documented in a specific Simulcast Application Manual.MM101271V1 R1A 11
9. The SitePro Controller interfaces with a Conventional MASTR III base station orDigital Signal Processor (DSP) through 20 Pin CONV/DSP connector J11.10. The SitePro Controller interfaces with a GPS Simulcast system through 26 PinSIMULCAST connector J13.NOTESitePro Controller interface functions vary from application to application andbetween EDACS systems using MASTR II or MASTR III repeaters. It is necessary torefer to the Application Configuration Manual for details regarding the specifichardware and software configuration of the SitePro Controller.4.3 COMPATIBILITY AND MIGRATIONThe SitePro Controller is compatible with Generic EDACS Trunking Card (GETC)compatible devices with the exception of the Site Controller.The requirements are that the SitePro Controller will only switch modes if the ControlChannel fails or a configuration command is received. The SitePro Controller will,however, change modes as currently implemented by the GETC. For example, theSitePro Controller Control Channel can switch modes, without failure or configurationcommand, if it detects carrier.For High Speed Data Modulation,theSitePro Controller has a separate Analog Board(A4) providing software configurable filtering, which is compatible with high speed datatypes.4.4 SYSTEM EXTERNAL INTERFACES(SitePro Trunked Interface Specification)The following is a description of all electrical connections to the SitePro Controller.All input/output definitions are relative to the SitePro Controller. This configurationsupports EDACS and Simulcast. The analog and digital control signals provide aninterface to a variety of base stations and are grouped by functionality.4.4.1 Station Control•LocRxAudio - Analog inputMASTR III level = 1 Vrms, Zin = 100Kohm, bias = ac coupledMASTR IIe level = .750 VrmsThis signal is unfiltered local receiver audio from the base station also calledVolume/Squelch or VolSq and carries either High Speed Data (controlsignaling/digital audio) or Low Speed Data with analog audio. The two componentsare internally separated.•RUS - Digital TTL active high inputThis signal is the Receiver UnSquelch signal from the base station and is activatedwhen a carrier of sufficient signal strength (as determined by the squelch pot setting)is present.•LSD - Analog outputlevel = 775 mVrms, Zout = 100ohm, bias = 0 volts12 MM101271V1 R1A
This signal is the Low Speed Data output to the base station. The signal isconditioned through a low pass filter to remove frequency components above 300 Hzto allow multiplexing with analog voice audio.•HSD - Analog outputlevel = 775 mVrms, Zout = 100ohm, bias = 0 voltsThis signal is the High Speed Data output to the base station modulator. The signal isconditioned through a specially designed filter needed to meet precise RFmodulation bandwidth limitations.•LocPTT - Digital active low open collector outputThis signal is the Local PTT control. This line, when low, will key up the basestation transmitter and select the local receiver audio source for transmission.•RemPTT - Digital active low open collector outputThis signal is the Remote PTT control. This line, when low, will key up the basestation transmitter and select the remote audio source for transmission.•A/DmodCtrl - Digital output TTL This is the Analog/Digital Modulation Control signal. When high, HSD is routed tothe base station transmit. When low, LSD/audio is routed to the base stationtransmit.•HSAcq - Digital output open collector outputThis is the High Speed Acquisition control signal. A high or low signal produces acorresponding high or low time constant in the limiter circuit.•LocRxMute - Digital active low output (8.5 volt low Z source)This signal is the Local Receiver Mute control. This line, when low, blocks therouting of receiver audio to the base station transmitter and line out. Muting occursduring HSD transmission, no valid carrier present, or no valid LSD present.•Walsh1/Walsh2 - Digital output TTL These two signals are combined to form a two bit Walsh Function DAC. This signalis the Low Speed Data source.•Synth_Clk – Digital open collector outputThis signal provides the clock source for loading the base station frequencysynthesizer (required for MIIe). Data is clocked on the negative edge of the clock.The baud rate is approximately 2.4Kbaud.•Synth_Data – Digital open collector outputThis signal provides the data source for loading the base station frequencysynthesizer (required for MIIe). Data is clocked on the negative edge of the clock.The baud rate is approximately 2.4Kbaud.•Synth_LdEn – Digital open collector outputThis signal is the Synthesizer Load Enable control. This line, when high, permits thebase station frequency synthesizer to be loaded and is used for protection againstinvalid transitions on the clock and data lines.•Synth_Locked – Digital TTL active high inputMM101271V1 R1A 13
This is the Synthesizer Locked signal. This line, when high, indicates that the basestation synthesizer is locked. This is used for verifying successful synthesizerloading and is also continuously monitored as a failure mode.•PAFail - Digital TTL active high input diode isolated with pullupThis is the Power Amp Failure indicator. This line, when high, indicates that thebase station PA has failed. A floating line asserts PA Fail. •RemAudioFlag - Digital TTL active low input, diode isolatedThis is the Remote Audio Present indicator. This line, when low, indicates thatremote audio from the IMC is present. This is generated by the base station inresponse to 2175Hz or E&M from the IMC.•FSL - Digital open drain bi-directionaloutput: 100 mA sink (low), 10mA source (high)input: Zin = 1KohmThis is the bi-directional Frame Sync Line. The line is used as an output in theControl Channel and as an input in the Working Channel.•ADCin – Analog inputlevel = 0 to 5 volts, Zin = 100KohmThis is the 8-bit Analog to Digital Converter (ADC) input. This may be used tomonitor station PA power.4.4.2 Simulcast Control•ext_PTT - Digital TTL active low input, diode isolatedThis is the external source for Local PTT and is only active in a Simulcastconfiguration.•ext_A/Dmodctrl - Digital TTL active low input, diode isolatedThis is the external source for the Analog/Digital modulation control and is onlyactive in a Simulcast configuration.•ext_150 - Digital TTL active low input, diode isolatedThis is the external source for Low Speed Data and is only active in a Simulcastconfiguration.•ext_9600baud - Digital TTL active low input, diode isolatedThis is the external source for High Speed Data and is only active in a Simulcastconfiguration.•bypass - Digital TTL active low input, diode isolatedThis is the Simulcast bypass control signal. This line, when low, forces the site tooperate in non-Simulcast mode and is driven by the Simulcast control equipment.•inhibit - Digital TTL active low input, diode isolatedThis signal is the Simulcast alarm indicator. This line, when low, indicates thepresence of a Simulcast alarm and is driven by the Simulcast control equipment.•txclk_in - Digital TTL active low input, diode isolated14 MM101271V1 R1A
This is the external source for High Speed Clock and is only active in a Simulcastconfiguration.•txclk_alarm - Digital TTL active high outputThis signal is the Simulcast Tx Clock alarm indicator. This line, when high, indicatesthat the external source for High Speed Clock is missing and is only active in aSimulcast configuration.4.4.3 Conventional Control•CPTT – Digital open collector outputThis signal is the Combined PTT control. This line, when low, will key up the basestation transmitter.•TxCGDis – Digital open collector outputThis signal is the Transmit Channel Guard Disable control. This line, when low,prevents the transmission of Channel.•CGMon - Digital TTL active low input, diode isolatedThis signal is the Channel Guard Monitor control. 4.4.4 Voter Control•vot_emsq - Digital open collector outputThis is the Voter E&M Squelch signal. This line, when low, indicates the presenceof E&M from the Voter.•vot_rcvng - Digital active low inputThis is the Voter Receiving signal. This line, when low, indicates that the Voter isreceiving.MM101271V1 R1A 15
INTRODUCTION4.4.5 Asynchronous Serial PortsThe following asynchronous serial ports provide control links to the SitePro.Table 1 –Asynchronous Serial PortsPort Format FunctionENet0 Ethernet 10baseT ManagementENet1 Ethernet 10baseT SpareSCC1 RS232 19200 8N1 MASTR IIISCC2 RS232 19200 8N1 SpareSCC3 RS485 SpareCom1 BSL 38400 8N1 BSLCom2 BSL 38400 8N1 BSLCom3 RS232 19200 8N1 SpareCom4 RS232 19200 8N1 SpareSMC0 RS232 19200 8N1 Program/DebugSMC1 RS232 38400 8N1 Spare4.4.6 Synchronous Serial PortsThe following synchronous serial ports provide data and control paths from the SiteProto the base station (High Speed Data), to the IMC (Phone Line), and to optional Voterequipment (VDI).Note that SSP0 is a new interface port providing unfiltered high speed data to/from aDSP based modulator.Table 2 - Synchronous Serial PortsPort Format Function SignalsSSP0 4800/9600 baud Local (RF)Comm Link TxData, TxClockRxData, RxClockSSP1 9600 baud Remote (PL)Comm Link TxData, TxClockRxData, RxClockCTS, RTSSSP2 9600 baud Voter (VDI)Comm Link TxData, TxClockRxData, RxClockCTS, RTS4.4.7 Power•+13.8V - power supply input +13.8 volts, 1.5 amps (nominal), input range 10 to 30 voltsThis signal is the positive voltage supply for the SitePro Controller and should beMM101271V1 R1A 16
INTRODUCTIONexternally fused. An internal switching DC-DC converter will be used to supply +/-12 and +5volts to the SitePro Controller sub-components.•GND – power supply inputThis signal is the ground connection for the SitePro Controller.MM101271V1 R1A 17
DESCRIPTION11.DESCRIPTIONThe SitePro Controller is essentially a processor with audio filtering and specializedI/O capability. Flexibility in design allows the SitePro Controller to be configured tofunction in many applications as suggested in the INTRODUCTION. Except forConfiguration Data, the SitePro Controller software is stored in flash memory.Configuration Data is stored in NOnVolatile Random Access Memory (NOVRAM).The Controller Board, Rockwell Modem, Analog Board, Power Supply, Display Module,and Display Board are mounted on a tray and enclosed in a slide-out shelf (Figure 1).The SitePro Controller shelf is a one-rack unit assembly (1.75-inches x 19-inches),which mounts in a standard 19-inch wide equipment cabinet/rack.Controller Board A2 uses Dual High Speed Diodes BAV99’s for lightning protection onall RS-232C inputs and outputs. However, maximum lightning protection is achievedwhen the SitePro Controller is grounded to the cabinet earth-ground using LightningProtection Circuitry Ground Kit 344A4500 and the Cabinet Grounding strap Kit344A4730. Specific details for installing these grounding kits are found in theLIGHTNING PROTECTION section LIGHTNING PROTECTION GROUNDINGof this manual.5.1INDICATORS AND CONTROLSThis section describes the indicators and controls visible and accessible from the frontpanel of the SitePro Controller Shelf Assembly.There are two hinged doors on the front panel of the shelf assembly. Each door has awindow so that indicators mounted on Control Board A2 and Rockwell Modem InterfaceCard A3 can be seen. Opening the Control Board door provides access to ResetPushbutton switch S1. This door also provides access to PROGRAMMING SERIALPORT J8. The circuit boards can be removed from the shelf assembly through thesedoors. An extender card can be inserted providing access to a board in a hot system.5.1.1 Indicators5.1.1.1 Controller Board Power IndicatorGreen LED indicator D12 provided on the Controller Board indicates when power isapplied to the shelf. This indicator is visible through the window in the hinged door onthe front panel of the shelf.5.1.1.2 Controller Board Status IndicatorsFour Red LED status indicators L1 thru L4 (D1 thru D4) are visible through the windowin the hinged door. These indicators show the state of operation of the SiteProController. The interpretation of these indicators depend on the system application(refer to the SitePro Controller configuration manual for the specific application).Green ETHERNET indicators ETH0 and ETH1 are also visible through the window inthe hinged door. These indicators indicate when something is connected to ETHERNET1 or ETHERNET 2 ports.MM101271V1 R1A 18
DESCRIPTIONThere are six other LED indicators on the Controller Board that are not visible unless theboard is on an extender board. Yellow LED’s D7 and D10 indicate when there istransmit activity. Yellow LED’s D6 and D9 indicate when there is receive activity.Green LED’s D5 and D8 indicate when there is link activity (refer to the 10 Base-TTransceiver section and the 10/100 Base-T Transceiver sections).5.1.1.3 Rockwell Modem Interface Card IndicatorsThere are five Red LED indicators on Rockwell Modem Interface Card A3. These LED’sare visible through the window in the hinged door and indicate +5V, +12V, -12V, RLDSand CTS respectively.5.1.1.4 DisplayEight-digit LED Display Board A6-A1 mounts between the two hinged doors on thefront panel of the SitePro Controller Shelf Assembly. Green LED D1 indicatesPOWER ON to the Display Board. This display displays Channel Status and ChannelInformation. 5.1.2ControlsReset Pushbutton Switch S1 is the only control available on the front panel of theSitePro Shelf Assembly. It is used to restart the logic of the SitePro Controller.Itisespecially useful when a circuit board has been hot swapped.5.2ROCKWELL MODEMThe 9600 Baud Rockwell Modem Board RYTUZ 921 01/1 mounts on top of ModemInterface Card A3 (ROA 117 2247). This Modem Board is used to generate a fast-train,synchronous, serial data stream suitable for transmission over audio (phone) line ormicrowave link. The data stream is sent to a full-duplex, four-wire, dedicated 3002 gradetelephone line.Controller Board A2 (CB101069V1) controls the associated modem to provide a highspeed synchronous serial interface between the SitePro Controller and other EDACSelements. Receive and Transmit Phone Data Lines are two balanced pairs carryingModem data to and from the station where the data is combined with station audio(voice) and routed to the Remote Line input and Line output.In addition to transformer isolation and conditioning provided by the SiteProController, the modem provides automatic adaptive signal equalization, allowing normaloperation using input signal levels from -40 dBm to 0 dBm. The Rockwell Modemdemodulates the input signal and the resulting data is transferred using a serial interfacebetween the Rockwell Modem and the controller. The modem senses a received signal by initiating a training state upon detecting anincrease in the input signal level. The modem begins processing data at the end of thetraining state if the input signal is still above the nominal -40 dBm receiving thresholdvalue. Otherwise, the modem returns to an idle mode at the end of the training state if theinput signal is below the nominal receiving threshold value.MM101271V1 R1A 19
DESCRIPTIONThe duration of the modem training state is determined through control signals at thetime of power up. Resetting the SitePro Controller (pressing S1) or cycling the SiteProController shelf operating power, initializes the Rockwell Modem for proper operation.5.3LOW SPEED AND HIGH SPEED DATA FILTERSThe SitePro Controller has software configurable high speed and low speed data filters.These filters are configured based on personality data.5.3.1Low Speed Data Decode FilterThe Low Speed Data (LSD) Decode Filter, part of Analog Logic Board A4, providesadditional filtering to remove voice-audio from the receiver unfiltered audio (vol/sq hi),thus leaving only the low-speed subaudible data for input to the microprocessor.5.3.2High Speed Data Encode FilterThe High Speed Data (HSD) Encode Filter, part of Analog Logic Board A4, selects onlythe high-speed data (4800 or 9600 baud) from the receiver unfiltered audio (vol/sq hi).This data can be control signaling or digital voice. The data is processed by the RFmodem and passed on to the microprocessor.5.4INTERFACE CONNECTIONSTable 3 - Interface ConnectionsConnector Interface ConnectionsJ1 32 Pin connector interfaces with Controller Board CB101069V1.J2 32 Pin connector interfaces with Analog Board CB101070V1.J3 32 Pin connector interfaces with Rockwell Modem Interface Card ROA117 2247.J4 2 over 2 BSL/RM (Rockwell Modem). This connector consist of fourRJ11 connectors as follows:RM 0 BSL 1QUART ARM 1 BSL 0QUART BJ5 Eithernet 0. Connects to external PC’s.J6 Eithernet 1. Connects to external PC’sJ7 4 Pin Power connector (+13.8 VDC).J8 Programming connector on the front of Controller Board A2J9 Power Supply Output +12V, -12V and +5V. Cable W2 connectsbetween J9 and J2 on Power Supply Module A5J10 Connects through cable A6-W1 to Display Module A6.J11 20 Pin connector for interfacing with a Conventional/DSP system.20 MM101271V1 R1A
DESCRIPTIONConnector Interface ConnectionsJ12 24 Pin connector for connecting to an Enhanced Digital AccessCommunication System (EDACS)J13 26 Pin connector for interfacing with a Simulcast System.J14 6 over 6 phone lines and serial ports. This connector consists of twelveRJ11 connectors as follows:RM 0 QUART C SCC4RS 485 SCC3 80C323PORT 0 N/URM 1 QUART D SCC2 SMC2 80C323PORT 1 N/U5.5COMMUNICATION LINKSCommunication Modes available to the SitePro Controller are:1. The SitePro Controller can communicate with other devices such as the SiteController, IMC, and RF Station. Communication occurs primarily through an RS-232C serial interface normally operating at 19.2 kilobaud. for a SitePro Controllerinterfacing with a Site Interface Module (SIM) this is set to 38.4 kilobaud.2. The SitePro Controller can communicate with other SitePro Controllers in theFailsoft mode of operation, over a Backup Serial Link (BSL). The link uses 0-13.8VDC levels and operates at 19.2 kilobaud and is ordinarily used in a busconfiguration. For a SitePro Controller interfacing with a SIM this is set to 38.4kilobaud.3. A timing signal called the Frame Sync Line (FSL) helps arbitrate the use of the BSLserial bus in the Voter configuration. The FSL is also used for timing purposes. Inthe the station configuration, FSL signals use 0-13 VDC levels to produce a periodicnegative going pulse.4. A 9600/4800 baud full-duplex, synchronous communication interface over an RFchannel.5. A 9600 baud phone line or microwave communication interface (this may be RS-232or modem data) through a Rockwell Modem.NOTESitePro Controller interface functions vary from application to application andbetween EDACS systems using MASTR IIe or MASTR III repeaters. It is necessary torefer to the Application Configuration Manual for details regarding the specifichardware and software configuration of the SitePro Controller.MM101271V1 R1A 21
DESCRIPTION4-Pin POWER, 20-Pin CONV/DSP& 20-Pin SIMULCAST Connectors24-Pin EDACS, 4-Pin POWER &20-Pin CONV/DSP Connectors Ethernet, SERIAL PORT &BSL/RM ConnectorsBack ViewsTop ViewFront ViewMM101271V1 R1A 22IntercoBoard Analog Board (A4)Controller Board (A2)
CIRCUIT ANALYSISFigure 1 - SitePro Controller Shelf AssemblyMM101271V1 R1A 23Modem Daughter Board Power Supply (A5)
CIRCUIT ANALYSIS6.0 CIRCUIT ANALYSISThe Theory of operation of each circuit board/card and module used in SiteProController Shelf Assembly EA101209V1 is described in the following paragraphs.Refer to the Block Diagram in Figure 2 and Outline and Schematic Diagrams as listed inthe TABLE OF CONTENTS.The SitePro Controller is a Base Station Controller with redundant communicationlinks [Backup Serial Links (BSL’s)]. The BSL’s provide for inter-channelcommunication with two 10Mbit Ethernet Ports. The BSL’s provide trunkingcommunications as well as site configuration and database messaging. One Ethernet portis dedicated to Management System information. The second Ethernet Port is notsupported at this time.The SitePro Controller and System Interface Module (SIM) will use the primary BSLfor trunking information and limited management system information. The secondarylink will ensure continued trunking operation in the event of a primary BSL failureThe SitePro Controller/base station interface for digital information, both receive andtransmit, is 9.6k baud synchronous data. Additional digital control information isprovided via discrete I/O at both the base station and controller. The following diagram(Figure 2) is a high level picture of the SitePro Controller and external interfaces.The SitePro Controller, main controller board (A2) and AMPS modem board, replacesthe CPTC GETC. 6.1SHELF ASSEMBLYSitePro shelf Assembly EA101209V1 is a 19” Rack Mount, one Rack Unit device. It isenclosed to reduce emissions and interference with other devices. Serial, Ethernet,power, and I/O connections are accessible at the back of the shelf (Figure 1). The Serialconnections (6 OVER 6 PHONE LINES & SERIAL PORTS) are stacked, two highusing RJ type connectors (J14). The Ethernet connectors J5 & J6 (ETHERNET 0 &ETHERNET 1) are single height RJ connectors. The power connector (J7) and I/Oconnector (J#) are Molex type.The front panel has two hinged access doors for insertion/removal of the ControllerBoard and the Rockwell Modem card for troubleshooting and ease of maintenance.These doors have RF fingers to reduce emissions. Diagnostic LED’s and the eight-digitdisplay are viewable from the front panel.The Shelf Assembly consists of Interconnect Board A1, which provides connectors toaccommodate:•Controller Board CB101069V1 (A2)•Rockwell Modem Interface Card Assembly ROA 117 2247 (A3)•Analog Board CB101070V1 (A4)•Power Supply DP1719 (A5)•Display Module MA101082V1 (A6)MM101271V1 R1A 24
CIRCUIT ANALYSISLoc PTTRem PTTA/D ModCtrlHSDLSDPA FailLocal Rx AudioLocal Tx AudioRUSRem Audio FlagLocal Rx MuteSynth_LockedSynth_ClkSynth_DataSynth_LdEnADCinbypassinhibitext_PTText_ADModCTrlext_150ext_HSDTxClk_inTxClk_alarmE0E1SCC1SCC2SCC3SMC1BSL/FSL0BSL/FSL1Com3Com4SP0SP1ControllerAnalogPower Supply(switch mode)SSP0SSP1SSP2External (simulcast)Signals and ControlConventionalSignals and ControlLocal (station)Signals and ControlVoterSignals and ControlLocal (RF) HSDSitePro InterfaceFILTERSLINE DRIVERSANALOG SWITCHESADCMPC860DS80C323QUARTUSRTPLD+5v @2a+/- 12vEtherNet PortsAsynchronousSerial PortsRMICROCKWELL MODEMLINE DRIVERSANALOG SWITCHES Voted (VDI) HSDRemote (PL) HSDCPTTTxCGDisCGMonVot_emsqVot_rcvngMM101271V1 R1A 25
CIRCUIT ANALYSISNFigure 2 - SitePro Shelf Assembly Block Diagram6.2INTERCONNECT BOARD (A1)Interconnect Board CB101073V1 is a passive printed circuit board that providesinterconnections between all internal components of the SitePro Controller shelf andinterfaces the SitePro Controller shelf with the outside world (Refer to Table 3 -Interface Connections, and Interconnection,Outline and Schematic Diagrams). Pifilters U1 thru U29 eliminate any Electro Mechanical Interference (EMI).6.3CONTROLLER BOARD (A2)Controller Board CB101069V1 contains all SitePro Controller logic and controlfunctions except the power supply and Rockwell Modem (Refer to the Outline andSchematic Diagrams for the Controller Board as listed in the TABLE OFCONTENTS).This Controller Board is based on an MPC860 microprocessor, the primaryresponsibility being message processing. This board has multiple high-speed serial ports,two of which are used for primary and secondary BSL’s. It has hardware and dual portRAM to support the Modem Board and a 10/100 Mbit ethernet port. This port isavailable for Voice Over IP traffic. A second 10 Mbit ethernet port is available formanagement functions.This board has sufficient memory to support 1M LID’s and 64k GID’s. It has LID andGID validation for all calls.6.3.1Block DiagramFigure 3 – Controller Board Block Diagram shows the connection of major componentsfrom a high level viewpoint. Schematic Diagram WD-CB101069V1, Sheet 2 alsoprovides a Block Diagram for the Controller Board. These diagrams show the majorcomponents of this board as:•CPU (MPC860P) •Memory•Eithernet 10 Base T •Electronically Programmable Logic Device(EPLD)•Eithernet 10/100 Base T •Quad UART (QUART)•EEPROM •Interconnect Board•Daughter Board6.3.2System I/OThe System I/O circuits for the Controller Board are shown on Schematic Diagram WD-CB101069V1, Sheet 3 and include:•Oscillator For PHY’s •3.3V Power Monitor•JTAG Port •Test Points•Board Insert Detection Circuit •Programming Serial Port J826 MM101271V1 R1A
CIRCUIT ANALYSIS•Hot Swap Controller •Decouplers•3.3V RegulatorMM101271V1 R1A 27
CIRCUIT ANALYSISMIIEnet PHY10/100 BaseT1:1 1:1SDRAM8M x 32FLASH1M x 32I2CEEPROM32K x 832.768KhzRTC3.0VBattMPC860P59 Mhz29.4912MhzSMC1SMC2SCC4BDMQUARTRJ-11RS-232RS-232CPLD RS-232I/O Backplane1234RS-232RS-232Modem DaughtercardOUTsINs3232328 JTA GINTsDATAREG 5V3.3VPL I/OJTAGJTAGI/O +12VEnet PHY10 BaseT1:1 1:1SCC1LEDsVDIRS-232RS-232RFRS-232RS-232DIP SWRS-232SCC2RS-232SCC3I/OSerialNumberHWIDRS-485BSLBSL XC VRJTAG5VHSCJTAGMM101271V1 R1A 28
CIRCUIT ANALYSISFigure 3 - Controller Board Block DiagramMM101271V1 R1A 29
CIRCUIT ANALYSIS6.2.1 Oscillator For Ethernet PHY’SThis circuit consists of crystal oscillator circuit Y1 powered by 3.3 V applied to Y1, Pin4, Vcc. Oscillator circuit Y1 is biased on by resistor R49 connected to Y1, Pin 3, CTRLand produces 25 MHz on the output at Pin 3 through resistor R51 (OSC 25MHz). Thisoutput connects to the CLK25 inputs to the Ethernet 10 and Ethernet 10/100 MbitPHY’s4.6.2.2 JTAG PortThis JTAG PORT circuit consists of buffer U1 (NC7SZ125M5). This circuit allowsprogramming directly to a microprocessor through connector J4.The JTAG port is also routed to the Modem Daughterboard. This allows a future modemdaughterboard to be designed with an Altera EPLD. If that future EPLD modemdaughterboard is used, resistor R187 (0 ohms) must be removed from the board.6.3.2.3.1Board Insert Detection CircuitThis circuit consists of NPN transistors Q6 and Q7. When the Controller Board isinserted into a live Interconnect Board, the base circuits of these transistors areconnected to ground through connector J1B, Pins B1 and B32. Connector J1B, Pin B1 isMATE-DETECT-A and J1B, Pin B32 is MATE-DETECT-B. With the base of bothtransistors at ground, they are held in the off state. This allows POWER ON to cyclehigh and low as the result of 555 timer U40 running at a programmed rate. The POWERON voltage is applied to Pin 2 of Hot SwapTM Controller U37. If the base of eithertransistor (Q6 or Q7) is not connected to ground, POWER ON will not be applied to theHotSwap Controller.6.2.4 Hot Swap™ ControllerHot Swap™ controller (HSC) U37 allows Controller Board CB101069V1 to be safelyinserted in or removed from Interconnect Board CB101073V1 while voltage is applied.Using external N-channel pass transistor Q5, the supply voltage to the Controller Boardis ramped up at a programmable rate. A high side switch driver controls the N-channelgate for supply voltages ranging from 2.7V to 12V. A programmable electronic circuitbreaker protects against shorts. The RESET output (U37, Pin 1) is used to generate asystem reset when the supply voltage falls below the programmable voltage. ThePOWER ON input to U37, Pin 2 is used to cycle the Controller Board power or togenerate a soft reset.6.2.5 3.3V RegulatorThe microprocessor is provided with 5 Volts and ±12 Volts from the Interconnect Board.Linear regulator U25 is used to provide 3.3 volts to be used by the majority of digitallogic on the Controller Board and the Daughter Board.The Hot Swap Controller (HSC) is used to ramp up the 5V power rail at a controlledrate. This, in addition to other considerations, will allow the Controller Board to be hot-swapable. The 5V output from this circuit will also power the 3.3 Volt regulator, thus4 PHY is an Industry Standard for “Physical Interface.”MM101271V1 R1A 30
CIRCUIT ANALYSIScausing the 3.3 V power rail to also ramp up at a controlled rate. As mentioned above,the HSC has a built-in electronic circuit breaker. The 555 timer circuit (U40) isconnected to the HSC chip so that the HSC can be automatically reset in the case of acircuit breaker fault.6.2.6 3.3V Power MonitorThe 3.3V Power Monitor (U31) uses a precision temperature-compensated reference andcomparator circuit to monitor the status of the 3.3V supply. If a loss of power is detectedan internal power-fail signal forces reset to the active state, which is low. When the 3.3Vsupply returns to a normal state, the reset signal is kept active for approximately 150 msto allow the power supply and microprocessor to stabilize. This 3.3V Power Monitorcircuit also monitors Reset Pushbutton S1 on the reset output, U31, Pin 1. If the reset ispulled low, by pressing S1, a reset signal is generated upon release. The output of U31 isheld in reset output (low) for approximately 150 ms. 6.2.7 Test PointsTest Points TP1 thru TP10 are provided on the Controller Board as follows:•TP1 thru TP3, TP7, TP8 and TP10 are ground connections•TP4 is +12V•TP5 is +3.3V•TP6 is +5.0V•TP9 is WALSHCLK••••Programming Serial Port J8This port (J8) is located at the front of the Controller Board just behind the hinged door.It is provided so that a programmer can easily program the microprocessor from the frontof the SitePro Controller without removing it from the cabinet.6.2.9 DecouplersDecoupling capacitors (Decouplers) are used to eliminate high-speed transient noise inhigh-speed digital circuits. There are a number of decoupling capacitors used on theController Board. On sheet 3 of Schematic Diagram WD-CB101069V1 there are two3.3V decoupling capacitors, C2 and C87. On sheet 5 there are three 3.3V decouplingcapacitors, C62, C83 and C113. There are also six 5.0V decoupling capacitors on sheet5, C52, C74, C103, C104 and C110. On sheet 6 there are four 5V decoupling capacitors,C69, C81, C102 and C109. On sheet 7 there are three 5V decoupling capacitors, C76,C92 and C101. On sheet 9 there are ten CPU DECOUPLING CAPS, C8, C11, C12, C16,C27, C28, C39, C48, C51 and C71. On sheet 11 there are ten 3.3V decouplingcapacitors, C26, C38, C61, C67, C76, C88, C89, C98, C99 and C100. There is also one5.0V decoupling capacitor on sheet 11, C55. On sheet12 there are ten 3.3V decouplingcapacitors, C29, C30, C33, C34, C37, C40, C43, C58, C59 and C50. On sheet 13 thereare ten 3.3V decoupling capacitors, C3, C4, C6, C7 C9, C13, C17, C22, C23 and C24.On sheet 14 there are three 5V decoupling capacitors, C64, C70 and C86. On sheet 15,there are five decoupling capacitors, C1, C5, C15, C18 and C21. On sheet 16 there areMM101271V1 R1A 31
CIRCUIT ANALYSISNfive 3.3V decoupling capacitors, C32, C36, C42, C47 and C56. On sheet 17 there arefour 3.3V decoupling capacitors, C77, C90, C91 and C105.6.3.3BlackplaneThe Controller Board to Interconnect Board A1 (Backplane) connector circuits areshown on Schematic Diagram WD-CB101069V1, Sheets 4-7 and include:•Board Connections •I/O (1)•Serial I/O •I/O (2)6.3.1 Board ConnectionsSchematic Diagram WD-CB101069V1, Sheet 4 shows the single DIN96 connector, J7.This 96-pin connector has three layers of pins, J7A, J7B and J7C. Each layer consists of32 pins. J7B, Pins 1 and 32 are the MATE-DETECT-A and MATE DETECT-Bconnections. These two connections are used with the Board Insertion Detection circuit.Pins J7B; Pins 27 and 28 are the SCL and SDA connections. SCL and SDA make up theI2C bus. CPU I/O SIGNAL PROTECTION DIODES D27, D29 connected to SCL andSDA provide lightning protection for the I2C bus.6.3.2 Serial I/ONumerous asynchronous and synchronous serial ports are brought to the InterconnectBoard (Backplane) from the microprocessor, Modem Daughter Board and QUART.Most serial ports convert to standard RS-232 levels using RS-232 transceivers U13, U24,U30 & U36. Serial port U21 converts to RS-485 differential signal levels and supports amultidrop network. One microprocessor RS-232 port is intended to be used as adiagnostic or local programming port and will be brought to RJ-11 connector J8 on thefront of the board in addition to the I/O Interconnect Board. Two ports from the QUARTuse BSL signaling.All Serial ports are designed for full-duplex 115.2 kbaud communications with theexception of the RS-485 port U21 from the microprocessor SCC. This port is a half-duplex HDLC port and supports speeds up to 2 Mbaud. U21 is a differential bus transceiver for bi-directional data communication on multiportbus transmission lines. This device combines a 3-state differential line driver and adifferential input line receiver. The driver and receiver have active-high and active-lowenables that are connected together externally to function as a direction control. Thedriver differential outputs and the receiver differential inputs are connected internally toform differential input/output I/O bus ports. These ports are designed to offer minimumloading to the bus when the driver is disabled or Vcc=0.BSL signaling is accomplished through two identical circuits consisting of hex invertingSchmitt Triggers U23A/U23B, inverter buffer drivers U35A/U35B, Field EffectTransistors (FET) Q3/Q4, amplifier transistors Q9/Q10 and diodes D23/D25. Inputs tothe microprocessor from the Interconnect Board (backplane) are through diode D23/D25to the input of U23A/U23B. Schmitt Trigger U23A/U23B provides a well-defined outputfor an input to the base of amplifier transistor Q9/Q10. The output of Q9/Q10(RXA/RXB) is applied to the microprocessor. When the input (BKP-BSL0/BSL1) ishigh, diode D23/D25 is reversed biased making the input to U23A/U23B high and theoutput on the collector of Q9/Q10 also high. When the input is low, diode D23/D25 is32 MM101271V1 R1A
CIRCUIT ANALYSISforward biased and the input to U23A/U23B is low. The output on the collector ofQ9/Q10 is also low.Outputs from the microprocessor to the backplane are through inverter buffer driverU35A/U35B, and FET Q3/Q4. The output RXA/RXB from the microprocessor is appliedto the input of inverter circuit U35A/B35B. When this input to U35A/B35B is low, theoutput is high. This causes Q3/Q4 to conduct. Diode D32/D33 is forwarded biased andthe output to BKP-BSL0/BSL1 is low. When the input to U35A/U35B is high Q3/Q4does not conduct and the output to BKP-BSL0/BSL1 is high.6.3.3 I/OOther I/O’s are shown on Schematic Diagram WD-CB101069V1, Sheets 6 and 7. Inputsto the microprocessor from the backplane consists of identical circuits for differentinputs. These circuits consist of inverter buffer driver circuits U18A thru F, SchmittTriggers U22B thru D and U23C thru F (Figure 4). Identical circuits for different inputsalso include inverter buffer driver circuits U22A thru F, U29D and U32B (Figure 5).In Figure 4 when the input from the backplane goes low the diode is forwarded biasedand the input to the inverter goes low. This results in a sharp, well-defined output of theinverter going high. Outputs are:•REM-AUDIO PRESENT (U18A) •EXTADIN (U22C)•CAS (U18B) •EXT150IN (U22D)•CGMON (U18C) •RCVING-FROM-AV (U23C)•LSDIN (U18D) •SYNTH-LOCK DET (U23D)•PAFAIL (U18E) •SIMULCAST-INHBIT (U23E)•FSLIN (U18F) •BYPASS (U23F)•EXTPTTIN (U22B) •MICROPROCESSORBACKPLANE5.0V 5.0VBAV99Figure 4 - Input Circuits U18A thru F, U22B thru D and U23A thru FIn Figure 5 the Schmitt Trigger provides a sharp, well-defined input to themicroprocessor MM101271V1 R1A 33
CIRCUIT ANALYSISNMICROPROCESSOR BACKPLANE5.0V 5.0VFigure 5 - Input Circuits U22A thru F, U29D and U32BThe FSL output from the microprocessor to the backplane is accomplished throughinverter circuit U33A and FET Q2 (BKP-FSL).The RX-MUTE output from the microprocessor to the backplane is accomplishedthrough Inverter U33D and transistor circuit Q1 (BKP-RX_MUTE).The EMSQTOAV output from the micropressor to the backplaned is accomplishedthrough InverterU35C and transistor circuit Q6 (BKP-EMSQTOAV).Other outputs from the microprocessor to the backplane are connected through identicalcircuits as shown in Figures 6 & 7. Figure 6 shows circuits using Schmitt Triggers U29B,C, E, F and U32A & C to provide sharp, well-defined outputs to the backplane. Thesesoutputs are:•BKP-WALSH1 (U29B) •BKP-RFTXDAT (U29F)•BKP-WALSH2 (U29C) •BKP-RFTXCLK (U32A)•BKP-A/DMODCTL (U29E) •BKP-LSDOUT (U32C)MICROPROCESSOR BACKPLANE5.0VFigure 6 - Output Circuits U29B, C, E & F, U33C, E & F and U34A thru FFigure 7 shows circuits using open collector inverters circuits U33B, C, E, F, U34A, B,C, D, E, F and U35C, D, E & F. These outputs are:•BKP-SYNTH_DATA (U33B) •BKP- (U34D)•BKP-SYNTH_DATA_CLK (U33C) •BKP- (U34E)•BKP-RPTKEY (U33E) •BKP- (U34F)•BKP-SPARE2 (U33F) •BKP- (U35C)•BKP-CPTTOUT (U34A) •BKP- (U35D)•BKP-SPARE1 (U34B) •BKP- (U35E)•BKP-STNPTT (U34C) •BKP- (U35F)34 MM101271V1 R1A
CIRCUIT ANALYSISMICROPROCESSOR BACKPLANE5.0VFigure 7 - Output Circuits U33B, C, E, F, U34A, B, C, D, E, F and U35C, D, E & FMM101271V1 R1A 35
CIRCUIT ANALYSIS6.3.4CPUThe Central Processing Unit (CPU) circuits for the Controller Board are shown onSchematic Diagram WD-CB101069V1, Sheets 8 & 9 and include:•Microprocessor •Microprocessor Support6.3.4.1 MicroprocessorMicroprocessor U9A is a Motorola MPC860P processor that has four SCC channels, twoSMC channels, plus a 100 Mbit Fast Ethernet Controller. One of the SCC channels isused as a second ethernet port (10 Mbit) with all other SCC and AMC channels used asserial ports.This microprocessor runs at 59 MHz using a 29.4912 MHz clock input. This frequencywas selected for use by the baud rate generators to produce standard baud rates up to115.2 kbaud without error. The microprocessor external bus runs at half the speed of themicroprocessor (29.5 MHz).The microprocessor provides a real-time clock that is used to provide time-of-dayinformation to the application software. The real time clock runs off of a 32.768 kHzcrystal and is provided with 3.0 Volt battery voltage via the KAPWR pin of themicroprocessor to keep time when power is off.Four external interrupts are used in this design. The remaining unused three connect tothe EPLD for future use. Connecting them to the EPLD makes later modifications easier.The external interrupt signals are specified in the following table.Table 4 - External Processor Interrupt SignalsDevice IRQ(SPARE-EPLD) IRQ (NMI)QUART IRQ1MODEM DB DUAL-PORT RAM IRQ2(SPARE-EPLD) IRQ3ETHERNET 10/100 IRQ4ETHERNET 10 IRQ5(SPARE-EPLD) IRQ6All but one chip select are used in this design. The unused chip select is connected to theEPLD for future use. The microprocessor chip select signals are defined in the followingtable. Table 5 - External Processor Interrupt SignalsDevice IRQ Machine Data Bus WidthFLASH CS0 GPCM 32 BitSDRAM CS1 UPMA 32 BitQUART REGISTERS CS2 GPCM 8 BitMM101271V1 R1A 36
CIRCUIT ANALYSISDevice IRQ Machine Data Bus WidthQUART INTERRUPT VECTOR CS3 GPCM 8 BitsEPLD CS4 GPCM 8 BitsMODEM DB DUAL PORT RAM CS5 UPMB58 BitsMODEM DB CODE RAM CS6 GPCM 8 Bits(SPARE-EPLD) CS7 N/A N/ANote that there is both a 32-bit data bus and an 8-bit data bus. The 8-bit data bus isconnected to the 32-bit processor data bus via an 8-bit transceiver. The output enable forthe transceiver is controlled by ANDing all 8-bits chips selects together inside the EPLD.6.4.2 Microprocessor SupportThe microprocessor support as shown on Schematic Diagram WP-CB101069V1, Sheet 9includes:•BDM Debug Port Connector •Silicon Serial Number•Power-On Reset Configuration •KAPWR Switch•32 kHz Crystal •8-Bit Bus Transceiver•VDDSYN Filter •MICTOR Logic Analyzer ConnectorsBDM Debug Port ConnectorFor support, microprocessor U9A provides a dedicated serial port (BDM) for connectinga debugger/emulator. A debugger/emulator connected to this port allows a programmerto read/write registers and external peripherals, control program execution, etc. Manydebuggers also have built-in capability to program on-board flash through this port.These serial port pins are brought to 10-pin header J1 using the standard BDM pinoutPower-ON Reset ConfigurationThe Power-On Reset Configuration consists of four octal buffer/drivers U6A, U6B, U8Aand U8B with 3-state outputs. This circuit ensures that at Power-On all circuits are resetto the starting state. Inputs to these circuits are through 10K BUS8 resistor networksRN7 and RN10. The outputs tie into bus D[0.31]. Each package is organized as two 4-bitline drivers with separate output-enable (OE) inputs. These inputs are tied together andconnect to RESET-N. When RESET-N is low, data passes from A inputs to Y outputs.When RESET-N is high, the outputs are in the high-impedance state.32 kHz CrystalThis crystal circuit consist of crystal package Y3, resistors R90 and R98, capacitors C49and C63. This circuits connects to U9A between pins N1 (EXTAL) and P1 (XTAL) andproduces an oscillator frequency of 32.768kHz to drive the real-time clock.5 UPMB is only required if the system makes use of the BUSY_N signal coming from the dual port memory. If BUSY_N isnot used, then a GPCM machine can be used for this chip select.MM101271V1 R1A 37
CIRCUIT ANALYSISN29 MHz ClockThe 29 MHz Clock consists of oscillator circuit Y2 and resistors R82 and R105. Thiscircuit produces the oscillator frequency of 29.4912 MHz and connects to U9A at N2(EXTCLK).VDDSYNC FilterThis circuit consists of inductor L1 and capacitors C50 and C57. It connects between the3.3V supply and the VDDSYN connection through capacitor C68 to microprocessorU9A, Pin T2 XFC. The primary purpose of this circuit is to Silicon Serial NumberA unique 64-bit electronic Serial Number chip U3 is used to store the boardidentification number. This chip has a 1-bit serial port, which interfaces tomicroprocessor U9A through an I/O port. In addition, four bits of hardware identificationare made available to U9A through I/O ports. The Hardware ID is changed based byselectively populating a bank of resistors.KAPWR SwitchThe KAPWR switch consist of Schottky diodes D30 and D31 and battery BT1. Thisswitch applies 3.3V supply or 3.3V battery to U9A, Pin KAPWR 8-Bit Bus TransceiverThis circuit consists of 8-Bit Bus Transceiver U19 and resistor network RN15. The 8-BitBus connects to the microprocessor through 8-Bit Bus Transceiver U19. The outputenable OE for the transcreiver is controlled by ANDing all 8-bit chip selects togetherinside EPLD U27. MICTOR Logic Analyzer ConnectorsThese connections consists of J3, J5 and J6.6.3.5Modem Daughter Board ConnectorThe Modem Daughter Board connector circuits for the Controller Board is shown onSchematic Diagram WD-CB101069V1, Sheet 10 and include:•QUICC Connector (J1) •I/O Connector (J2)6.5.1 QUIC Connector (J1)The QUICC (J9) connector contains the microprocessor interface (Refer to the ModemDaughter Board Section).38 MM101271V1 R1A
CIRCUIT ANALYSIS6.5.2 I/O Connector (J2)The I/O (J2) connector has miscellaneous I/O to/from the EPLD or Interconnect Board(Refer to the Modem Daughter Board Section).6.4.5Electrically Programmable Logic Device (EPLD)The EPLD circuit for the Controller Board is shown on Schematic Diagram WD-CB101069V1, Sheet 11.Access to various board inputs/outputs is made available through ElectronicallyProgrammable Logic Device (EPLD) U27. The EPLD contains numerous read/writelatches with a simple 8-bit interface to the microprocessor.The EPLD is in-circuit programmable via the JTAG port using an Altera byte-blastercable. A 10-Pin header is made available for this purpose. The EPLD JTAG port is alsobrought to microprocessor I/O pins to allow the microprocessor to load the EPLDconfiguration.In addition to being an interface to the discrete I/O, the EPLD also divides clocks andprovides the output enable logic for the 8-bit data bus transceiver.6.7 Ethernet PortsThere are two Ethernet Port circuits for the Controller Board and they are shown onSchematic Diagram WD-CB101069V1, Sheets 12 & 13 as:•10 Base-T (10 Mbit PHY) •10/100 Base-T (10/100 Mbit PHY)The 10/100 Mbit port (10/100 Base-T Transceiver U5) uses the Fast Ethernet Controllerinside the microprocessor and supports full duplex (10/100 Base-T). The 10 Mbit port(10 Base-T Transceiver U12) uses SCC1 and only supports half-duplex (10 Base-T). Theethernet physical layer transceivers are the same for both ports, but the 10/100 Mbit portuses the MASTR II interface whereas the 10 Mbit uses a “7-wire” interface. The ethernettransceivers support 10/100 Base-T with full auto-negotiation capability, while the 10Mbit port only advertises 10 Mbit capability.The RJ-45 ethernet connectors are actually located on Interconnect Board A1(Interconnect Board). The ethernet physical layer chips and transformers reside on theController Board with the ethernet differential RX/TX signals brought to the RJ-45connectors through the Interconnect Board connector. A single LINK OK status LED isprovided for each ethernet port on the front of the Controller Board.The 10Mbit Ethernet port uses the “7-wire” interface to connect the Ethernet physicaltransceiver to the microprocessor SCC1 serial channel. When SCC1 is in Ethernet mode,the SCC pins have different functions (refer to the following table).Table 6 - 10 Mbit Ethernet ConnectionsSCC Ethernet Signal SCC Pin Name PHY SignalTX TXD1 10TXDTENA RTS1 10TXENMM101271V1 R1A 39
CIRCUIT ANALYSISNTCLK CLKx 10TXCLKCLSN CTS1 10COLRENA CD1 10CRSRX RXD1 10RXDTCLK CLKx 10RXCLKIn order to use both the SCC1 in Ethernet mode and I2C bus, the board software applies asmall microcode patch at startup. This relocates the affected overlapped registers. Makesure to use the new register addresses in the code. To obtain the patch, go to:http://www.mot.com/SPS/ADC/pps/subpgs/etoolbox/8XXX/i2C_spi.html.6.4.6I2 C BusThe I2C-bus is a two-wire serial bus (SCL and SDA) used for microcontroller-basedcontrol. The I2C Bus circuits for the Controller Board are shown on Schematic DiagramWD-CB101069V1, Sheet 14. These circuits consist of Personality EEPROM U14, and 8-bit I/O expanders for the I2C bus U15 and U26.32k of non-volatile data storage is provided by EEPROM U14. EEPROM U14 isorganized as 32kx8 and is accessible via the I2C port of microprocessor U9A.Serial EEPROM U14 has a write protect pin. It is active high and has an external pull-upto always make it active. To write to U14, port PB23 on the microprocessor is defined asan output and driven low. To write protect the EEPROM after writing to it, port PB23 isdefined as an input and the pull-up activates the write protect signal.Several peripherals are available to the microprocessor through the I2C Bus. In additionto a 32kbyte EEPROM, there is an 8-bit writable latch for driving 4 LED’s and an 8-bitreadable latch for reading the status of an 8-bit DIP switch. The I2C bus is also brought tothe Interconnect Board for accessing other off-board peripherals (i.e. LED display). I2Cbus addresses are as follows:Table 7 - I2C Bus AddressesDevice AddressesLED’s 0x40DIP Switch 0x46EEPROM 0xA0Digital Pot 0x50ADC/DAC 0x9E16-Bit Expander 0x4CDisplay 0x4A6.4.7MemoryThe Memory circuits for the Controller Board are shown on Schematic Diagram WD-CB101069V1, Sheets 15 & 16 and include:40 MM101271V1 R1A
CIRCUIT ANALYSIS•DRAM Circuits U2 & U7 •Flash Circuits U10 & U116.9.1 DRAMTwo 128-Mbit, 16 bit wide synchronous DRAM Integrated Circuit modules U2 and U7are organized in a 4M x 32 configuration. These two modules provide a minimum of 16Mbytes of storage, upgradeable to 64 Mbytes. The following table shows the MPC860Pbank addresses for the different DRAM memory sizes.Table 8 - DRAM Bank Memory RangesBank 64-Mbit (DRAM) 128-Mbit (2xDRAM) 256-Mbit (SDRAM)Bank 1 0x003FFFFF – 0x00000000 0x003FFFFF – 0x000000000x013FFFFF – 0x01000000 0x003FFFFF – 0x000000000x013FFFFF – 0x010000000x023FFFFF – 0x020000000x033FFFFF – 0x03000000Bank 2 0x007FFFFF – 0x00400000 0x007FFFFF – 0x004000000x017FFFFF – 0x01400000 0x007FFFFF – 0x004000000x017FFFFF – 0x014000000x027FFFFF – 0x024000000x037FFFFF – 0x03400000Bank 3 0x00BFFFFF – 0x00800000 0x00BFFFFF – 0x008000000x01BFFFFF – 0x01800000 0x00BFFFFF – 0x008000000x01BFFFFF – 0x018000000x02BFFFFF – 0x028000000x03BFFFFF – 0x03800000Bank 4 0x00FFFFFF – 0x00C00000 0x00FFFFFF – 0x00C000000x01FFFFFF – 0x01C00000 0x00FFFFFF – 0x00C000000x01FFFFFF – 0x01C000000x02FFFFFF – 0x02C000000x03FFFFFF – 0x03C000006.9.2 FLASHTwo flash memory modules U10 and U11 are organized as 1M x 32 for non-volatileprogram storage (Flash). These two modules have 4 Mbytes of flash memory with theability of expansion up to 8 Mbytes. The program execution takes place directly fromflash so that performance is as important as is the ability to load new code while in thelab and while in the field.6.9.3 Quad UARTThe QUART circuit for the Controller Board is shown on Schematic Diagram WD-CB101069V1, Sheet 17.Universal Asynchronous Receiver-Transmitter (UART) U28 is used to handleasynchronous serial data communication. Asynchronous means that the data is notsynchronous, that is, it is not occurring at a steady constant rate, but is being transmittedintermittently through serial ports. In data transmission, serial means, transmitting onebit at a time.The serial port is a general-purpose interface that conforms to the RecommendedStandard–232C (RS-232C) and can be used to interface with almost any type of device(modem, mouse and serial printer, etc.).MM101271V1 R1A 41
CIRCUIT ANALYSISNQuad UART (U28) is accessible to microprocessor U9A for four additional serial ports.QUART U28 runs off 3.3 volts, forcing the microprocessor interface to be asynchronousand run at 14.75 MHz, the microprocessor bus clock divided by 2 inside the EPLD. Thecommunication clock input will be 3.6864 MHz, the microprocessor bus clock dividedby 8 inside the EPLD. None of the I/O ports of the QUART will be used, but the portsare connected to mod points in case of a later use.The QUART uses two chip selects, CS2 and CS3. Chip select CS2 is used whenaccessing the QUART registers. Chip select CS3 is used after an interrupt to read theinterrupt vector.6.5 MODEM DAUGHTER BOARDThe Modem Daughter Board contains three synchronous serial ports (modems) and alocal microprocessor. This board plugs into the Controller Board using two connectors,QUICC (J9) and I/O (J2). Refer to Figure 4 – Modem Daughter Board BlockDiagram.The microprocessor interface is a simple 8-bit asynchronous port with two separate chipselects. One chip select controls access to an 8k x 8 dual port RAM. The other chipselect controls access to the Modem Daughter Board microprocessor local memory. TheController Board microprocessor loads the Modem Daughter Board local memory withcode before releasing the Modem Daughter Board reset. The Modem Daughter Boardmicroprocessor runs from a 14.7 MHz clock generated by dividing down the 29.5 MHzController Board microprocessor output clock inside the EPLD.Circuits for the Modem Daughter Board are shown on Schematic Diagram WD-CB101074V1, Sheet 1. The Outline Diagram is shown on PS-CB101074V1.Modem Daughter Board CB101074V1 mounts on the Controller Board and existsprimarily to support Modem chips, U9, U10, and U11. These modems process 9600 baudserial synchronous receive and transmit data from the RF path (U9), the Phone Line(PL) path (U10) and the Voted Digital Interconnect (VDI) path (U11). Microprocessor U1, a Dallas 80C323, controls the three modem chips, generates thetransmit data, and processes the receive data for use by the system. The microprocessor communicates with the QUICC processor on the Controller Boardvia Dual Port RAM U3.There is no non-volatile memory on the Modem Daughter Board. Code is loaded intoCode RAM (U2) via an interface from the QUICC processor.Most of the circuitry on the Modem Daughter Board operates from a 3.3V supply. TheModem chips, however, require 5V. Thus a 3.3V to 5V conversion (U6) is needed for allsignals to the Modem chips.42 MM101271V1 R1A
CIRCUIT ANALYSISQD0 - QD7QA0 - QA15D0 - D7A0 - A12QUICCIFCJ1 U3DUALPORT RAMU180C323A0 - A7A8 - A15U78-BITLATCHA0 - A15D0 - D7U2CODESRAM64k x 8A0 - A15 A0A14D0D7U4SRAM32k x 8U6CONVU9RFMODEMU10PLMODEMU11VDIMODEMU13DATABUFFER (8)U12ADDERBUFFER (16)A0 - A15D0 - D7A0 - A7A0 - A7VDIMODCS/U5ADDRESSDECODER210E543210A15A14A13DPRCS/PLMODCS/RFMODCS/RD/WR/X1X1X1A/D0-7A/D0-7A/D0-7RFRXDATRFTXDATRFTXCLKRFRCVDATRFRCVCLKRFCS.5ALE5 CS/ALERD5WR5RESET5RFINTRD/WR/RESININT/RFMODCS/PLMODCS/UDIMODCS/DATADIRRD/RESET EDIR OED0-D7A0-A7RFCS_5PLCS_5VDICS_5ALE_5RD/_5WR/_5RESETSRFMODCS/PLMODCS/ALERD/WR/RESETVDIMODCS/DATADIROEDIR3.3VLERESETALEU53.3VRFINT/PLINT/VDIINT/RXD0TXD0RSD1TXD1INT0/INT/RRWINT/PLINT/RD/WR/ALEPSEN/EAX114.746 MHzRESET RESETRESETRESETRESETIN/PSEN/PSEN/OEDIRD0 - D73.3VR/W/LCODECS/CODE-A16CODECS/QCODECS/QRD/ DEL/QDPRCS/ CEL/QWR/ R/W/LMODINT2NUC INTL/BSY/ BUSYL/14.756MHz 14.756MHzRESET2MOD RESETIN/RD/OEL/ OEL OERCEL/ CEL CER DFRCS/R/WL/ R/WRR/WL WR/BUSYL/SEML SEMRINTL/ INTL# INTR INT/RBUSYR3.3VM/SDIROEOE/3.3 VCODE-A16A16A0 - A15RD/ OE/SC/WE/WR/A150 PE.40 PE.50 P1.10 P1.40 P1.61 P1.0P3.0P3.1P3.2P3.3P3.2 INT0/P3.3 INT1/P1.5 INT3/P1.7 INT5/P3.7P3.611 MHzMM101271V1 R1A 43
CIRCUIT ANALYSISNFigure 8 - Modem Daughter Board Block Diagram44 MM101271V1 R1A
CIRCUIT ANALYSIS6.1 ModemsEach Modem chip interfaces to the 80C323 microprocessor via an 8-bit bi-directionaladdress/data bus, and Chip Select (CS/), Read (RD/), Write (WR/), ALE, and Interrupt(INT/) signals.During transmit, the microprocessor writes data to the Modem as requested by theModem interrupt. The Modem converts the data to a 9600 baud synchronous serial datastream. During receive, the Modem chip receives the 9600 baud synchronous serial data streamand interrupts the 80C323 microprocessor whenever it has a complete byte to transfer.The modem must also acquire bit sync and word sync from the data stream. 6.2 3.3V/5V InterfaceBecause the Modems require a 5V supply, and the microprocessor is on a 3.3V supply, itis necessary to convert the voltage of signals passing between them. This is done by U6,an IDT74FCT164245 3.3V/5V converter. Both output enable and direction can becontrolled for the two 8-bit sections of this IC.In this case, the outputs are always enabled, so the OE/ pins are tied low. Section 1 isused for signals, which only go from the microprocessor to the Modems, so Pin 1 (1DIR)is tied high. Section 2 is used for the bi-directional bus. Pin 24 (2DIR) is driven by logicwhich sets the direction from microprocessor to Modems (high) most of the time. Onlyduring a read of one of the microprocessors is the direction reversed (low).6.3 MicroprocessorThe 80C323 microprocessor is a 3.3V version of the Dallas Speedy micro, an 80C32derivative. It operates on a 14.7462 MHz. Clock, which is convenient for generatingstandard baud rates. It interfaces with the Modems, Code RAM, Dual Port RAM, andData RAM via standard address and data busses.The microprocessor has 2 asynchronous serial ports (TXD0/RXD0 and TXD1/RXD1)which may be used in the SitePro system for diagnostics. Both ports are available on therear of the SitePro shelf. Six bits of 80C323 microprocessor I/O are used in a SitePro configuration. WALCLK,WAL1, WAL2, and HSACQCTL are outputs, while LSRX and MODFSL are inputs.The microprocessor has only two level sensitive interrupts, INT0/ and INT1/. The first,INT0/, is used for all Modem interrupts. The second, INT1/, is used for interrupts fromthe Dual Port Ram.Since it is still necessary to distinguish between the three Modem interrupts, RFINT/ andPLINT/ are brought to I/O pins so the microprocessor can easily determine whichModem is interrupting. i.e. If a Modem interrupt occurs, the microprocessor looks at thetwo pins. If either or both are low, the corresponding interrupts are serviced. If neither islow, the VDI interrupt is serviced.The 80C323 (U1) uses standard Intel multiplexed address/data bussing. During the firsthalf of the bus cycle, U7 latches the lower 8 bits of address under the control of ALE.MM101271V1 R1A 45
CIRCUIT ANALYSISNAddress decoder U5 generates the Chip Selects for the three modems and the Dual PortRAM using signals RD/, WR/, A13, A14, and A15.Table 9 - Memory MapMEMORY MAPDevice Range SizeCode RAM 0-FFFF 64KBytesDual Port RAM 0-1FFF 8K BytesData RAM 8000-FFFF 32KBytesRF Modem 2000-2003 4 BytesPL Modem 4000-4003 4 BytesVDI Modem 6000-6003 4 Bytes6.4 Code MemoryCode is stored in 128K byte RAM U2. The microprocessor can then access it via theAddress and Data bus using PSEN/.Code is loaded into U2 from the QUICC microprocessor. During loading, the QUICCholds the 80C323 reset with the RESETIN/ (low) signal. This is required so the 80C323will not try to access U2 at the same time causing bus contentions. During loading, bustransceivers U12 (address bus) and U13 (data bus) are turned on. They are held inactiveat all other times by the same RESETIN/ signal.The QUICC controls Code memory access through signals RESETIN/, R/WL, CODECS/and CODE_A16. While RESETIN/ is held low, the QUICC can write or read U2.CODE_A16 can be used to control which 64K byte half of U2 is used. Thus, forinstance, Control Channel code could be stored in one half and working channel code inthe other. The switch is performed while the 80C323 is held reset, so it is entirelytransparent to the 80C32.When RESETIN/ is high, the bus transceivers U12 and U13 are off and the 80C323controls the bus.6.5 Data MemoryData is stored in 128K byte RAM U4, however, only 32K is used. Chip select is A15/,thus the RAM is addressed in the upper half of memory space. 6.6 Dual Port RamDual Port RAM U3, an IDT70V05 8K byte device, is the communication path betweenQUICC and 80C323 during normal operation. Either microprocessor can read or writeany location in the RAM. Protocols must be established in software to avoid contention.The QUICC can interrupt the 80C323 by writing to Address ______. This causesinterrupt line INTR/ to go low. It is cleared by a read of the same address by the 80C323.Likewise, the 80C323 can interrupt the QUICC by writing to address ____, which causesa QUICC interrupt on line INTL/.46 MM101271V1 R1A
CIRCUIT ANALYSISThe 80C323 accesses the DPR via its address and data busses using signals DPRCS/,RD/, WR/, and INTl/.The QUICC accesses the DPR via its address and data busses using correspondingsignals CEL/, R/WL/, OEL/, and INTL/.6.7 Troubleshooting AidsSeveral signals are available on diagnostic connector J3 for troubleshooting purposes.Also probe points are provided for GND, 5V, and 3.3V.MM101271V1 R1A 47
CIRCUIT ANALYSIS6.4ROCKWELL MODEM INTERFACE CARD (A3)7.0 QIUCC Connector6.2 Dual Port RAM6.3 Microcontroller6.4 8-bit Latch6.5 Address Buffer6.6 Data Buffer6.7 Code SRAM6.8 Data SRAM6.9 Page Connections6.10 Address Decoder6.11 Diagnostic Connector6.12 3/5 ConverterMM101271V1 R1A 48
CIRCUIT ANALYSIS6.13 I/O Connector6.14 RF Modem6.15 PL ModemPhone Line Modem6.16 VDI ModemVoted Digital Interface ModemMM101271V1 R1A 49
CIRCUIT ANALYSIS6.4 ANALOG BOARD (A4)Analog Board CV101070V1 contains programmable high speed filters, low speedencode and high speed decode. This board includes Simulcast Interface hardware, whicheliminates the need for the older Simulcast Interface Board in Simulcast applications.Refer to Outline Diagram PS-CB101070V1 and Schematic Diagram WD-CB101070V1.6.5.1Quad ADC and Single DACAD/DA Converter U23 is an 8-bit CMOS data acquisition device with four analoginputs, one analog output and a serial I2C-bus interface. Three address pins A0 (Pin 5),A1 (Pin 6) and A2 (Pin 7) can be used for programming a hardware address, allowing theuse of up to eight devices to be connected to the I2C-bus without additional hardware. Inthis application, these three leads are tied to +5V. Address, control and data to and fromthe device are transferred serially through the two-line bidirectional I2C-Bus. The PWRSENSE lead is connected to analog input AIN0 at U23, Pin 1, converted to digital andconnected to the I2C-bus.6.5.28-Bit I/O Expander for I2 C Bus8-Bit I/O Expander U4 consists of a 16-bit two-line quasi-bidirectional port and an I2C-bus interface. The two-line I2C inputs SCL and SDA connect to U4, Pins 22 and 23respectively. These two-line inputs can be monitored at Test Points TP2 and TP3. Theexpanded outputs and connections are U4, Pin: •4 (P0) – HS-FILTERSEL0 (Monitoredat TP19) •13 (P10) - ground•5 (P1) – HS-FILTERSEL1 (Monitoredat TP24) •14 (P11) - ground•6 (P2) – HS-FILTERSEL2 (Monitoredat TP25) •15 (P12) - ground•7 (P3) – HSACOCTL1 (Monitored atTP26 •16 (P13) – ground•8 (P4) – LSCTL (Monitored at TP30) •17 (P14) - ground•9 (P5) - (Monitored at TP29) •18 (P15) – Connects to +5V throughvoltage divider network R127, Pin 8•10 (P6) – MODCTL (Monitored atTP28) •19 (P16) – Connects through voltagedivider network R127, Pin 7 to Pin 5to U4, Pin 20 (P17)•11 (P7) – LSDATAACC (Monitoredat TP27) •20 (P17) – Connects through voltagedivider network R127, Pin 5 to Pin 7to U4, Pin 19 (P16)6.5.3–5 Volt Generation-5 Volt generation is accomplished through voltage regulator U2. –12 Volts is applied toU2, Pin 4 IN. Capacitors C3 and C4 provide filtering of this input. The output is at U2,Pin 3 Out. The –5 Volts is filtered by capacitors C5 and C6. –5Volts can be monitored atMM101271V1 R1A 50
CIRCUIT ANALYSISTest Point TP31 by connecting the negative lead to TP31 and the positive lead to ground(TP32 or TP33).6.5.4High-Speed Data Transmit FiltersBuffer/follower circuit U6A precludes the quad operational amplifier high-speed datatransmit filter circuits for RFTXDAT. The output of this circuit can be monitored at TP1.The output of U6A is applied to the inputs of high-speed Data Transmit Filters:•9600 Baud Wide Band•4800 Baud Narrow Band•9600 Baud Wide Band ETSI6•4800 Baud Narrow Band ETSI•9600 Baud Narrow Band Switched Capacitor Filter CircuitThe High Speed Data (HSD) filter is an active Gaussian Minimum Shift Keying(GMSK) filter that filters the data transitions to minimize the high-speed-datatransmission bandwidth. The frequency response of the HSD filter section is changed byselecting the output of only one filter circuit by 8:1 MUX U7.High-speed data is a 4800 or 9600 bit per second data stream generated by themicrocomputer through the RF data modem U9 on the Modem Daughter Board. Each of the HSD filter circuits has two sections.6.5.4.1 9600 Baud Wide BandThis HSD filter circuit consists of operational amplifier U5B followed by operationalamplifier U5A. The output of U5A, Pin 1 is applied to the input of 8:1 MUX U7, Pin 4(N01). This HSD amplifier filter output can be monitored at TP4.6.4.4.2 4800 Baud Narrow BandThis HSD filter circuit consists of operational amplifier U5C followed by operationalamplifier U5D. The output of U5D, Pin 14 is applied to the input of 8:1 MUX U7, Pin 5(N02). This HSD amplifier filter output can be monitored at TP5.6.4.4.3 9600 Baud Wide Band ETSIThis HSD filter circuit consists of operational amplifier U10B followed by operationalamplifier U10A. The output of U10A, Pin 1 is applied to the input of 8:1 MUX U7, Pin 6(N03). This HSD amplifier filter output can be monitored at TP6.6.4.4 4800 Baud Narrow Band ETSIThis HSD filter circuit consists of operational amplifier U510C followed by operationalamplifier U10D. The output of U10D, Pin 14 is applied to the input of 8:1 MUX U7, Pin7 (N04). This HSD amplifier filter output can be monitored at TP7.6 European Technical Standards InstituteMM101271V1 R1A 51
CIRCUIT ANALYSISN6.4.4 9600 Baud Narrow BandThis HSD filter circuit consists of switched-capacitor filter circuit U11 required toproduce a flat frequency response. This circuit is driven by an external 400 kHz clock onU11, Pin 1. The output on U11, Pin 5 is applied to the input of 8:1 MUX U7, Pin 12(N05). This HSD filter circuit output can be monitored at TP8.6.5.68:1 MUXMultiplexer circuit U7 is used to select the applicable HSD to be passed on to DualDigital Potentiometer U8. The inputs to U7 are applied to N01 through N05 (Pins 4, 5, 6,7 and 12). The selection of HSD is made by the HS-FILTER_SEL inputs on U7, Pin 1(A0), Pin 15 (A1) and Pin 15 (A2). EN (Enable) on Pin 2 is connected to +5V. The 8:1MUX output COM is on U7, Pin 8.6.5.7Dual Digital PotThe output of the MUX circuit connects to the input of Addressable Dual DigitalPotentiometer U8, Pin 14 (HO). This device has two independently controlledpotentiometers. Only one pot is used in this application. The wiper can be set to one of256 positions and is controlled by the microprocessor through the I2C data bus SCL (Pin9) and SDA (Pin 10). The output on Pin 12 (WO) connects to the input of amplifiercircuit U6B.6.5.8Inverting Buffer/AmplifierAmplifier circuit U6B is an inverting buffer/amplifier with a gain of approximately 1.5.The output of this circuit is connected to the input of analog switch U9. The output ofthis circuit can be monitored at TP9.6.5.9 Analog SwitchAnalog Switch U9 is a Single-Pole/Double Throw (SPDT) with one normally closed andone normally open switch. Switching times are less than 175 ns max for tON and lessthan 145 ns max for tOFF. Analog Switch U9 switches between RFTXDATA (U9, Pin 2(S1)) coming from inverting Buffer/amplifier U6B and ANALOG AUDIO (U9, Pin 8(S2)). S1, Pin 2 (RFTXDATA) is the normally closed contacts. The output is on U9, Pin1 (D) MOD. This device is controlled by MODCTL on U9, Pin 6 (IN). +5V connects toU9, Pin 5, (VL). +12V connects through Diode D1 to U9, Pin 4 (+V) and –12V connectsthrough Diode D2 to U9, Pin 7 (-V).6.5.8Clock GenerationClock generation is accomplished by inverter circuits U32C and U32D and Dual 4-StageBinary Ripple Counter U3. U32C and 400 kHz crystal Y1 form a 400 kHz oscillatorcircuit. The output of U32C connects to the input of U32D. The 400 kHz clock (CLK)output of 32D connects to U3, Pin 1 (CP1). This 400 kHz CLK can be monitored atTP10. Counter U3 divides the 400 kHz CLK down to produce a 25 kHz CLK. Thisoutput can be monitored at TP11. The 400 kHz CLK is further divided down to producea 3.125 kHz CLK. This output can be monitored at TP12.52 MM101271V1 R1A
CIRCUIT ANALYSIS6.5.9Low Speed Data Decoder FilterThe Low Speed Data Decode Filter is used to remove voice-audio (300-3000 Hz) leavingonly the low-speed or subaudible data for an input to the microprocessor.VOLSQ is coupled through capacitor C33 to the input of buffer/follower circuit U15A6.5.10Low Speed Data Encode FilterThe Low Speed Data Encode filter is used to smooth out transitions of data impressedupon the voice audio. Low-speed data is a 150 bit per second data stream generated bythe microcomputer and used to produce subaudible data on the voice audio.Low-Speed Data is generated by microcomputer U9A through EPLD U27, Pins 81 and80, Walsh Bit 1 and Walsh Bit 2 respectively. For low-speed data, the two Walsh bits arescaled and summed through analog switch U22. The output of U22, Pin 1 (D) connectsthrough operational amplifier U19A and buffer/follower U19B to the input of the low-speed-data encode filter U21. The output of U19B can be monitored at TP22. U21 is anactive filter, which uses resistors R82, R90 and R93 with an external 3.125 kHz CLK toproduce a low-pass filter. The output of U21 can be monitored at TP20. This outputconnects to the input of low pass filter U20, Pin14 (IN). This filter6.6POWER SUPPLY (A5)MM101271V1 R1A 53
CIRCUIT ANALYSIS6.7MISCELLANEOUS INFORMATION6.7.1Serial Port Data FormatThe serial ports transfer RS-232 asynchronous serial data at a rate of 19.2k using thehalf-duplex operating mode. That is, data flows in only one direction at a time. Thecharacteristics of the communication link are:Type: RS-232CBaud Rate: 19.2 kilobaudStart Bits: 1Stop Bits: 1Parity: NoneData Type: Binary6.7.2Failsoft Data FormatCommunication between SitePro’s takes place along the Backup Serial Link (BSL)through J4. The characteristics of the communication link are:Level: 0 to 13.8 VDCMark/Space: 13.8 volts (mark)/0 volts (space)Baud Rate: 19.2 kilobaud/38.4 kilobaud (ES)Start Bits: 1Data Bits: 8Stop Bits: 1Parity: NoneData Type: BinarySitePro’s installed in Enhanced Sites (ES) must use a data rate of 38.4K baud toimprove message throughput and alleviate any conflicts due to increased traffic.6.7.3T1/E1 InterfaceIn systems using a T1/E1 interface, a T1/E1 multiplexer provides an asynchronous serialinterface between the SitePro and the IMC MIM.6.7.4Phone Port Data FormatThe SitePro sends and receives modem data from its telephone port at 9600 baud usingthe full duplex mode. That is, data flows simultaneously in both directions. Refer to theRockwell Modem section for a detailed description.54MM101271V1 R1A
INSTALLATION7.0 INSTALLATIONMM101271V1 R1A 55
CONFIGURATION8.0 CONFIGURATION56MM101271V1 R1A
PROGRAMMING9.0 PROGRAMMINGMM101271V1 R1A 57
TROUBLESHOOTING10.0TROUBLESHOOTING58MM101271V1 R1A
LIGHTNING PROTECTION GROUNDING11.0LIGHTNING PROTECTION GROUNDINGMaximum lightning protection is achieved when the GETC Lingtning-ProtectionGrounding Kit (344A4500) is installed. This kit is normally installed at the factory for alltrunking applications. The following procedure summarizes the installation process:1. Two wires (black #16 AWG hookup wire, 2-feet long) are prepared as follows:a. The wires are stripped and tinned ½-inch on one end and 1-inch on the other end.b. A solderless terminal (19B209260P1), bent approximately 30-degrees so it willclear the board mounting screw, is attached to the end stripped back ½-inch oneach wire as shown in Figure. Figure 9 - Lightning-Protection Kit Installation Detail2. The solderless terminal end of the wires is then attached to the SitePro ControllerInterconnect Board A1 using the lock washers and machine screw as shown in theabove Figure. A chinch nut is already mounted to the solder side of the board.3. The wires are then routed out of the shelf as shown in Figure 4.MM101271V1 R1A 59
GLOSSARYInterconnect BoardController Board Rockwell ModemInterface CardModem DaughterBoardPower SupplyRockwell ModemAssemblyAnalog BoardBolt SolderlessTerminal to Board.Figure 10 - Lightning-Protection Kit Cabinet Installation4. When the shelf is installed in the rack, use the split bolts to attach the wire endsstripped 1-inch to the cabinet earth-ground bus wire (part of the Cabinet groundingStrap Kit 344A4730) as shown in the split bolt side view in Figure 3.NOTEIn order to be effective, the Cabinet Grounding Strap must be strapped to the buildingand/or earth ground.60 MM101271V1 R1A
INSTALLATION12.0GLOSSARYMM101271V1 R1A 61
PARTS LIST13.0PARTS LISTSITEPRO SHELF ASSEMBLYEV101209V1SYMBOLPARTNUMBER DESCRIPTION1MA101080V1 Chassis Assembly.219A116552P3 Clamp, Cable.3FM101081V1 Cover.419A702381P608Screw, Thread Form, TORX, M4 x 8mm.519A701312P6 Flat washer, M4.619A702364P508Screw, Machine, TORX, M4X8mm.719A700032P7 Lock washer, Internal Tooth, M4.8FM101231V1 Spacer Plate, Shelf Door.9FM101232V1 Lens keeper, Door.10 AG101229V22 EMI Shielding Gasket, 22 Fingers.11 AG101229V5 EMI Shielding Gasket, 5 Fingers.12 AG101230V1 Lens, EMI Shielding.13 19A700032P3 Lock washer, Internal Tooth, M2.5.14 19A700034P3 Nut, M2.5 X 0.45.15 NP101233V1 Rear Label.16 FM101083V1 Support, Front.A1 CB101073V1 INTERCONNECT BOARD- - - - CAPACITORS - - - -C1andC2470pF, 2KV: sim to ArcoMC1808X471KN202.- - - - JACKS - - - -J1thruJ3DIN 96_ABC-P: sim to AMP 650895-4.J4thruJ5RJ11_MULT: sim Stewart SS-7368H22-NF.J6 CON10: sim to Stewart SS-7188S-A-NF.J5 CON10: sim to Stewart SS-7188S-A-NF.J7 19A116659P173CONN PWR 4-R.J8 19A116659P101CONN PWR 3-P.J9 19A116659P105CONN RCPT 6.MM101271V1 R1A 62
PARTS LISTSYMBOLPARTNUMBER DESCRIPTIONJ10 19A704852P30 CONN RCPT 4.J11 HEADER 20: sim to AMP 102160-4.J12 CON24: sim to AMP 102160-5.J13 HEADER 26: sim to AMP 102160-6.J14 RJ45_MULT: sim to Stewart SS-73XXX.- - - - RESISTORS - - - -R1thruR4REP_623_642/75 75 Ohms, 1%, 0.63W.- - - - Pi FILTERS - - - -U1thruU29Capacitor: 100pF, 100WVDC@125º C,+80%/-20%: sim to Tusonix 4700 006.A2 CB101069V1 CONTROLLER BOARD- - - - BATTERY - - - -BT1 Coin: 3V. 165 mAh: Sim to Panasonic Thru-Hole.- - - - CAPACITORS - - - -C1 Tantalum: 1.0µF, 20V ±20%. C2thruC9?Ceramic: 0.1µF, 25V ±10%.C10C11C12 Tantalum: 1.0µF, 20V ±20%.C13C14 Ceramic: 470pF, 2kV ±20%.C15thruC30?C31 Ceramic: 470pF, 2kV ±20%.C39 Tantalum: 1.0µF, 20V ±20%.C42 Tantalum: 1.0µF, 20V ±20%.MM101271V1 R1A 63
PARTS LISTSSYMBOLPARTNUMBER DESCRIPTIONC46 Tantalum: 1.0µF, 20V ±20%.C49 Ceramic: 10pF, 100V ±10%.C57 Tantalum: 10µF, 16V±20%.C63 Ceramic: 10pF, 100V ±10%.C65 Ceramic: 100pF, 100V±10%.C66 82pFC68 Ceramic: 820pF, 25V±10%.C74 Tantalum: 1.0µF, 20V ±20%.C93 Ceramic: 0.001µF, 25V ±10%.C96andC97Tantalum: 10µF, 16V±20%.C106Ceramic: 0.001µF, 25V ±10%.C111Ceramic: 0.001µF, 25V ±10%.C115Ceramic: 0.033µF, 25V ±10%.C117Tantalum: 10µF, 16V±20%.- - - - DIODES - - - -D1thruD4LED: Red, Thru-hole, RT ANGLE.D5 LED: Green, Thru-hole, RT ANGLE.64 MM101271V1 R1A
PARTS LISTSYMBOLPARTNUMBER DESCRIPTIOND6andD7LED: Yellow, sim to Citizen 1206.D8 LED: Green, Thru-hole, RT ANGLE.D9andD10LED: Yellow, sim to Citizen 1206.D11 Dual, High-Speed: sim to Philips, BAV99,SOT23.D12 LED: Green, thru-holeD13thruD17?Dual, High-speed: sim to Philips, BAV99,SOT23.D30andD31Schottky, Vf=0.4- - - - JACKS - - - -- - - - INDUCTOR - - - -L1 39µH ±15%.- - - - RESISTORS - - - -R1 19A149818P103Metal Film: 10k Ohms ±5%, 0.1W. R2thruR419A149818P102Metal Film: 1k Ohms ±5%, 0.1W.R5 19A149818P103Metal Film: 10k Ohms ±5%, 0.1W.R6thruR80 Ohms.R9thruR1339 Ohms.R14andR1519A149818P750Metal Film: 75 Ohms ±5%, 0.1W.R16andR1719A149818P103Metal Film: 10k Ohms ±5%, 0.1W.MM101271V1 R1A 65
PARTS LISTSSYMBOLPARTNUMBER DESCRIPTIONR18R19 19A149818P222Metal Film: 2.2k Ohms ±5%, 0.1W.R20 39 Ohms R21R22 49.9 Ohms ±1%.R23 19A149818P331Metal Film: 330 Ohms ±5%, 0.1W.R24 19A149818P152Metal Film: 1.5k Ohms ±5%, 0.1W.R25 19A149818P102Metal Film: 1k Ohms ±5%, 0.1W.R26R27R28andR2919A149818P103Metal Film: 10k Ohms ±5%, 0.1W.R30R31R32thruR3449.9 Ohms ±1%.R35 19A149818P331Metal Film: 330 Ohms ±5%, 0.1W.R36R37R38 10k Ohms ±1%R39R40andR4119A149818P750Metal Film: 75 Ohms ±5%, 0.1W.R42 19A149818P331Metal Film: 330 Ohms ±5%, 0.1W.R43 0 OhmsR44R45 0 OhmsR46R52andR5349.9 Ohms ±1%.66 MM101271V1 R1A
PARTS LISTSYMBOLPARTNUMBER DESCRIPTIONR54 19A149818P331Metal Film: 330 Ohms ±5%, 0.1W.R55 19A149818P121Metal Film: 120 Ohms ±5%, 0.1W.R56thruR5819A149818P102Metal Film: 1k Ohms ±5%, 0.1W.R59 19A149818P121Metal Film: 120 Ohms ±5%, 0.1W.R60R61 19A149818P121Metal Film: 120 Ohms ±5%, 0.1W.R62R63R64R65R66 19A149818P121Metal Film: 120 Ohms ±5%, 0.1W.R71andR7219A149818P121Metal Film: 120 Ohms ±5%, 0.1W.R73andR7419A149818P105Metal Film: 1 Meg Ohm ±5%, 0.1W.R75 3.01k Ohms ±1%.R80 33k OhmsR85 10.0k Ohms ±1%.R86R87 19A149818P331Metal Film: 330 Ohms ±5%, 0.1W.R90 10 Meg Ohms ±5%, 1/16W.R95 470k Ohms ±1%.R98 200k OhmsMM101271V1 R1A 67
PARTS LISTSSYMBOLPARTNUMBER DESCRIPTIONR11119A149818P750Metal Film: 75 Ohms ±5%, 0.1W.R13619A149818P222Metal Film: 2.2k Ohms ±5%, 0.1WR140andR141510R142andR143Metal Film: 2.2k Ohms ±5%, 0.1W.R144R145510R146R1473.9k OhmsR148R149100R1503.9k OhmsR151510R152R1530.015 Ohms ±1%, 0.5W ±1%.R1603.9k OhmsR16119A149818P100Metal Film: 10 Ohms ±5%, 0.1WR162100R1675.5k Ohms ±1%, 0.1W68 MM101271V1 R1A
PARTS LISTSYMBOLPARTNUMBER DESCRIPTIONR1682.0k Ohms ±1%, 0.1WR169100R1703.9k OhmsR17119A149818P472Metal Film: 4.7k Ohms ±5%. 0.1W.R17227k OhmsR17719A149818P472Metal Film: 4.7k Ohms ±5%. 0.1W.R17919A149818P472Metal Film: 4.7k Ohms ±5%. 0.1W.R1814.3 Meg Ohms ±5%, 1/16W.R18333k Ohms- - - - RESISTOR NETWORKS - - - -RN1thruRN1510k Ohms, BUS8, ±5%, 0.063W.- - - - SWITCHES - - - -S1 PUSHBUTTON, SPST N.O./SPST N.C.S2 DIPSWITCH, 8 position.- - - - TEST POINTS - - - -TP1thruTP10SM Test Point Loop – Surface Mount: sim toADI/ SM-TESTPAD/Comp-CORP/TP-107/1.- - - - TRANSFORMERS - - - -T1andT21:1, 10/100Mbps: sim to TG110-S05N2.- - - - TRANSISTORS - - - -Q1 NPN: Switching: sim to Phillips PMBT3904,SOT23.MM101271V1 R1A 69
PARTS LISTSSYMBOLPARTNUMBER DESCRIPTIONQ2thruQ4FET: Small-Signl, N-Channel: sim toINFINEON, BSP295.Q5 MOSFET: N-Channel, 5A, 20V: sim to ONSemiconductor, MMSF5N02HD.Q6andQ7NPN: Switching: sim to Phillips PMBT3904,SOT23.Q8 PNP: sim to Motorola, MMBT3906LT1,SOT23.Q9andQ10NPN: Switching: sim to Phillips PMBT3904,SOT23.- - - - INTEGRATED CIRCUITS - - - -U1 Single Buffer with 3-State Output: sim toFairchild NC7SZ125M5, SOT23-5.U2 8M x 16 SCRAM, PC100: sim to MicronMT48LC8M16A2TG-8E, TSOP54.U3 Silicon Serial Number: sim to Dallas,DS2401P, TSOC6.U4 Clock Buffer: sim to Cypress Cy2305SC-1,SOIC8.U5 10/100-TX/FX Ethernet Transceiver: sim toAMD AM79C874VC, TQFP80.U6 Octal Buffer, 3.3V: sim to TI 74LVC244ADB,SSOP20.U7 8M x 16 SCRAM, PC100: sim to MicronMT48LC8M16A2TG-8E, TSOP54.U8 Octal Buffer, 3.3V: sim to TI 74LVC244ADB,SSOP20.U9 Microprocessor, 66MHz: sim to Motorola,XPC860PZP66D4, BGA357.U10andU111M x 16/2M x 8 Flash, simultaneousRead/Write: sim to AMD,AM29DL163DB90E1, TSOP48. U12 10/100-TX/FX Ethernet Transceiver: sim toAMD AM79C874VC, TQFP80.U13 RS232 Transceiver, 5V, 2-TX, 2-RX: sim toMAXIM, MAX202CSE, SOIC16..U14 EEPROM, I2C, 16k x 8, 3.3V: sim to Atmel,AT24C128, SOIC8.U15 I2C Bus 8-bit I/O: sim to Philips, PCF8574T,SOIC16.U16 Phase-Lock-Loop (PLL): sim to TI,74HCT4046ADB, SSOP20.70 MM101271V1 R1A
PARTS LISTSYMBOLPARTNUMBER DESCRIPTIONU17 Single Inverter: sim to Philips,74HC1G04GW, SOT-353.U18 HEX Buffer: sim to Philips, 74HC14PW,TSSOP14.U19 Octal XCVR, BUS HOLD, 3.3V, sim to Philips,74LVCH245APW, TSSOP20.U20 Single Inverter: sim to Philips,74HC1G04GW, SOT-353.U21 RS485 Transceiver: sim to TI, 75176BD,SO8.U22andU23HEX Buffer: sim to Philips, 74HC14PW,TSSOP14.U24 RS232 Transceiver, 3V to 5.5V, 3-TX, 5-RX:sim to MAXIM, MAX3241CAI, SSOP28.U25 +5V Regulator, 1.5A: sim to Linear Tech,LT1086CM-3.3, TO263.U26 I2C Bus 8-bit I/O: sim to Philips, PCF8574T,SOIC16.U27 144 PIN CPLD, sim to Altera,EPM3256ATC144, TQFP144.U28 Quad UART (QUART): sim toSC28L194A1BE, TQFP80.U29 HEX Buffer: sim to Philips, 74HCT14PW,TSSOP14.U30 RS232 Transceiver, 5V, 4-TX, 5-RX: sim toMAXIM, MAX213CAI, SSOP28.U31 Reset Supervisor: sim to Dallas, DS1818R-10, SOT23.U32 HEX Buffer: sim to Philips, 74HCT14PW,TSSOP14.U33thruU35HEX Open-Collector Output Drivers: sim toPhilips, 7406AD, SOIC14.U36 RS232 Transceiver, 3V to 5.5V, 5-TX, 3-RX:sim to MAXIM, MAX3237CAI, SSOP28.U37 Hot Swap Controller: sim to Linear Tech,LTC1422, SOCI8.U38 Single 2-Input NAND Gate: sim to Phillips,74AHC1G00GW, SOT353.U39 HEX Open-Collector Output Drivers: sim toPhilips, 74F06AD, SOIC14.U40 555 Timer: sim to National, LMC555CM,TO263.- - - - OSCILLATORS - - - -MM101271V1 R1A 71
PARTS LISTSSYMBOLPARTNUMBER DESCRIPTIONY1 Crystal: 25MHz CLK ±50ppm, 40%/60% duty,3.3V Y2 Crystal: 29,4912 MHz CLK ±100ppm,40%/60% duty, 3.3V.Y3 Crystal: 32.786kHz CLK Y4 Crystal: 11.0592 MHz CLK ±50ppm,40%/60% duty, 3.3V.A3 ROA 1172247/1 ROCKWELL MODEM INTERFACE CARD- - - - CAPACITORS - - - -C1thruC4RJE 5843168/47 Tantalum: 47µF ±20%, 16V.C6 RJC 4643045/1 10nF ±10%, 50V.C7 RJA 5284064/1 1nF, ± 5%, 16V.C8 RJE 5843168/47 Tantalum: 47µF 20%, 16V.C9 RJE 5843108/1 Tantalum: 10uF 20%, 10V.C10thruC15RJC 4643045/1 10nF ±10%. 50V.- - - - FUSE - - - -F1 NGH 241 04/1 Glass-Tube: 1.0 A F2andF3NGH 241 03/25 Glass-Tube: 0.25A- - - - RESISTORS - - - -R1andR2REP 645623/62 620 Ohms ±1%, 0.25WR3 REP 645623/22 220ohm 1% 0.25WR4andR5REP 625426/33 Chip: 330k Ohms 5%, 1/8W.R6thruR17REP 625 425/1 Chip: 10k Ohms 5%, 1/8W.R18thruR21REP 625424/47 Chip: 4.7k Ohms 5%, 1/8W.72 MM101271V1 R1A
PARTS LISTSYMBOLPARTNUMBER DESCRIPTIONR22thruR27REP 625 424/1 Chip: 1k Ohms 5%, 1/8W.R28 REP 625 425/1 Chip: 10k Ohms 5%, 1/8W.R29 REP 645624/24 2.4k Ohms 1% 0.25WR30 REP 645624/12 1.2k Ohms 1%, 0.25WR31andR32REP 645623/62 620 Ohms 1%, 0.25WR33 REP 625423/47 Chip: 470 Ohms 5%, 1/8W.R34 REP 645623/24 240 Ohms 1%, 0.25WR35andR36REP 645623/12 120 Ohms 1%, 0.25WR37thruR40REP 645 62 0.0 Ohms +50Meg Ohms, 0.25W.R41andR42REP 625 425/1 Chip: 10k Ohms 5%, 1/8W.- - - - SWITCHES - - - -S1 RMF 356004/08 COMMUTATOR/DIP-SWITCH- - - - TRANSFORMERS - - - -T1andT2REG 135 57/1 Transformer/Telefon- - - - INTEGRATED CIRCUITS - - - -U1 RYT 3062024/C Dual Mono Flip-Flops: sim to 74HC4538D.U2 RYT 3062019/C MICROCIRCUIT: sim to 74HC86U3 RYT 1086003/C MICROCIRCUIT: sim to TLC555IDU4 RYT 1016164/1 Dual Op Ampl: sim to RC4558DU5 RYT 1096073/1 RS232 3+3 Transceivers ±5V: sim toMC145406DW.- - - - DIODES & TRANSISTORS - - - -MM101271V1 R1A 73
PARTS LISTSSYMBOLPARTNUMBER DESCRIPTIONV1thruV3RKZ 433 637/1 LED: 90-Degree, RED.V4thruV7RKZ 223 01/8 Diode Regulator: 4.7V 5%, .225W.V8thruV10RYN 121 675/1 NPN Transistor: 60V, 200mA.V11andV12RKZ 433 637/1 LED: 90-Degree, RED.V13andV14RYN 121 675/1 NPN Transistor: 60V, 200mA.- - - - CONTACTS - - - -X1andX2RNV 403843/031 Fork contact unit/socket conn. For pwbmounting.X3andX4RPV 380 10/03 PIN STRIP/.X5 RPV 403209/102 Connector/96 Pol 4 GRD. Pins.X6andX7RNV 207 03/1 U-LINK/.X8andX9RPV 380 10/03 Pin Strip/.XF1thruXF3NFN 102 04 Fuse Holder/.4 NTM 201 1079 Set Of Materials/Hardware Kit6 RNY 101 01/4 KEY4/A4 CB101070V1 ANALOG FILTER BOARD- - - - CAPACITORS - - - -C3 1µF ECS-T1CY105RC4 10nF ECU-V1H103KBVC5 1µF ECS-T1CY105RC6 10nF ECU-V1H103KBVC10 1nF ECU-V1H102KBVC11 4.7nF ECU-V1H472KBV74 MM101271V1 R1A
PARTS LISTSYMBOLPARTNUMBER DESCRIPTIONC12andC1310nF ECU-V1H103KBVC14 2.2nF ECU-V1H222KBVC15 10nF ECU-V1H103KBVC16andC1722nF ECU-V1E223KBVC18 1.5nF ECU-V1H152KBVC19andC2047µF 593D476X9016D2TC21 10nF ECU-V1H103KBVC22 15nF ECU-V1H153KBVC23 22nF ECU-V1E223KBVC24 2.2nF ECU-V1H222KBVC25 15nF ECU-V1H153KBVC26 22nF ECU-V1E223KBVC27 33nF ECU-V1H153KBVC28 10nF ECU-V1H103KBVC29 3.3pF ECU-V1H033CCVC30 0.1µF ECJ-1VB1C104KC31 15nF ECU-V1H153KBVC32 10µF ECS-H1CC106RC33 22uF ECS-T1CD226RC34 10µF ECS-H1CC106RC39 3.3pF ECU-V1H033CCVC40 15nF ECU-V1H153KBVC41 10 nF ECU-V1H103KBVC42 47 µF 593D476X9016D2TC47thruC520.1µF ECJ-1VB1C104KC53andC5447µF 593D476X9016D2TMM101271V1 R1A 75
PARTS LISTSSYMBOLPARTNUMBER DESCRIPTIONC57thruC6047µF 593D476X9016 D2TC62andC63NMC64thruC860.1µF ECJ-1VB1C104KC89thruC910.1µF ECJ-1VB1C104KC93thruC980.1µF ECJ-1VB1C104KC100thruC1040.1µF ECJ-1VB1C104KC106thruC1110.1µF ECJ-1VB1C104KC113thruC1210.1µF ECJ-1VB1C104KC1234.7pF C0603C479K5GACC124andC1250.1µF ECJ-1VB1C104K- - - - DIODES - - - -76 MM101271V1 R1A
PARTS LISTSYMBOLPARTNUMBER DESCRIPTIOND1andD2 BAT54LT1D5 Dual High Speed: sim to BAL99.D11andD12Dual High Speed: sim to BAL99D15 BAT54LT1- - - - JACK - - - -J1 DIN96_ABC_R- - - - RELAYS - - - -K1andK2EB2-4.5S- - - - TRANSISTOR - - - -Q1 MMBT3904LT1- - - - RESISTORS - - - -R1 124k OhmsR2 SM/RP_EXB-D10C [EXB-D10C/SM]R3R4 16k OhmsR5 1.21k OhmsR6 5.11k OhmsR7 1k OhmsR8 16k OhmsR9 1.21k OhmsR10 5.11k OhmsR11 1k OhmsR12andR13NMR14 31.6k OhmsR15 0 OhmsR16 150k OhmsR17 100k OhmsR18 1Meg OhmR19 NMR20 1Meg OhmsMM101271V1 R1A 77
PARTS LISTSSYMBOLPARTNUMBER DESCRIPTIONR21 0 OhmsR22 100k OhmsR23andR24NMR25 46.4k OhmsR26 0 OhmsR27 100k OhmsR28 11k OhmsR29 1.96k OhmsR30 5.11k OhmsR31 1.1k OhmsR32 11k OhmsR33 1.96k OhmsR34 5.11k OhmsR35 1.1k OhmsR36 470 OhmsR37andR381Meg OhmsR39 22.1k OhmsR40 20K OhmsR41 22.1k OhmsR42R43 294k OhmsR44andR4522.1k OhmsR46 10k OhmsR47 10Meg OhmsR48 NMR49 10k OhmsR50 68k OhmsR51 NMR52 100k OhmsR53 10k OhmsR54 0 OhmsR55 23.7k OhmsR56andR57NMR58 47k Ohms78 MM101271V1 R1A
PARTS LISTSYMBOLPARTNUMBER DESCRIPTIONR59andR6010k OhmsR61andR620 OhmsR63 20k OhmsR64 NMR65 60.4k OhmsR66 NMR67 1k OhmsR68 4.7k OhmsR69 0 OhmsR70 60.4k OhmsR71 NMR72thruR7422.1k OhmsR75R76R77 NMR78andR7910k OhmsR80andR81NMR82 10kR83 NMR84 0 OhmsR85R86 10k OhmsR87 18k OhmsR88 0 OhmsR89 32.4k OhmsR90 15k OhmsR91 82.5k OhmsR92 NMR93 46.4k OhmsR94 NMR95 221k OhmsR96 46.4k OhmsR97 0 OhmsMM101271V1 R1A 79
PARTS LISTSSYMBOLPARTNUMBER DESCRIPTIONR98 82.5k OhmsR99 10k OhmsR100thruR102NMR103andR1044.7k OhmsR105thruR108470 OhmsR109andR111NMR1124.7k OhmsR11310 OhmsR1140 OhmsR115R116R117R118R119andR1200 OhmsR12120k OhmsR12239.2k Ohms80 MM101271V1 R1A
PARTS LISTSYMBOLPARTNUMBER DESCRIPTIONR123andR12451.1K OhmsR12539.2k OhmsR126332k OhmsR127SM/RP_EXB-D10C [EXB-D10C/SM]R128thruR1300 OhmsR13110Meg Ohms- - - - TEST POINTS - - - -TP32AndTP33TP-107-01 [T POINT R]- - - - INTEGRATED CIRCUITS - - - -U2 : sim to Motorola, MC79M05BT.U3 : sim to Motorola, MC74HC393AD.U4 Remote 16-bit I/O Expander: sim to Philips,PCF8575CTS.U5 : sim to Motorola, MC33074D.U6 : sim to Motorola, MC33072D.U7 Fault-Protected, High-Voltage Single 8-to-1/Dual 4-to-1 Multiplexers: sim to Maxim,MAX4508ESE.U8 : sim to Dallas, DS1803Z-010.U9 SPST/SPDT Analog Switches: sim to Maxim,DG419DY.U10 : sim to Motorola, MC33074DU11 8th-Order, Lowpass, Switched-CapacitorFilters: sim to Maxim, MAX292ESA.U12 : sim to Motorola, LM393D.U13 : sim toU14 : sim to Maxim, MAX294EWE.U15 : sim to Motorola, MC33072D.U16 : sim to Linear Tech, LTC4861S.MM101271V1 R1A 81
PARTS LISTSSYMBOLPARTNUMBER DESCRIPTIONU17 : sim to Motorola, MC33072D.U18 SPST/SPDT Analog Switches: sim to Maxim,DG419DY.U19 : sim to Motorola, MC33072D.U20 Low Pass Filter: sim to Maxim, MAX294EWE.U21 : sim to Linear Tech, LTC1059S.U22 SPST/SPDT Analog Switches: sim to Maxim,DG419DY.U23 8-Bit A/D and D/A Converter: sim to Philips,PCF8591TD.U24 +5V-Powered, Multichannel RS-232Drivers/Receivers: sim to Maxim,MAX232AESE.U25 : sim to Linear Tech, LTC4861S.U26 : sim to Linear Tech, LTC 4891S.U27 Dual Peripheral Drivers: sim to TI,SN75451BDU28 : sim to Motorola, MC33072D.U29 : sim toU30 : sim toU31 : sim toU32 : sim toU33 : sim to Motorola, LM393D.- - - - CRYSTAL - - - -Y1 400 kHz: sim to STATEK_CX-3V-SMA5 POWER SUPPLY Sim To CONDOR DP1719A6 EA101227V1 DISPLAY MODULEFM101082V1 Display CoverAR-FM101082V1 Display Mkg Artwork.AG101230V1 Display Lens.FM101082V3 Display Lens Keeper.FM101082V2 Spacer Plate.A6-A1 CB101077V1 Display Board Assembly82 MM101271V1 R1A
PARTS LISTSYMBOLPARTNUMBER DESCRIPTIONA6-W1 CA101222V1 CableA7 RYTUZ 92101/1 ROCKWELL MODEM ASSEMBLYA8 CB101074V1 MODEM DAUGHTER BOARD- - - - CAPACITORS - - - -C1thruC210µFC3thruC270.1µFC28 27pF- - - - CONNECTORS - - - -J1 QUICC: J2 I/O ConnectorJ3 Diagnostic Connector- - - - RESISTORS - - - -R1thruR310k OhmsR4R5thruR810k OhmsR9R10R11R12R13R14 270 OhmsR15thruR2010k Ohms- - - - INTEGRATED CIRCUITS - - - -U1 Local Microprocessor: sim to Dallas 80C323.U2 SRAM 64 x 8k: sim to Integrated CircuitDevices IDT71V124SA.U3 Dual Port RAM: sim to Integrated CircuitDevices IDT70V05L55PF.MM101271V1 R1A 83
PARTS LISTSSYMBOLPARTNUMBER DESCRIPTIONU4 SRAM 64 x 8k: sim to Integrated CircuitDevices IDT71V124SA.U5 Address Decoder: sim to 74ALVC138ADB.U6 3.3V - 5V Converter: sim to Integrated CircuitDevices IDT74FCT.U7 8-Bit Latch: sim to 74LVC373APWOH.U8U9 RF Modem: sim to Texas InstrumentROP101688/4CU10 PL Modem: sim to Texas InstrumentROP101688/4C.U11 VDI Modem: sim to Texas InstrumentROP101688/4C.U12 Adder Bus Buffer: sim to Integrated CircuitDevices IDT74FCT163245C or A.U13 Data Bus Buffer: sim to Integrated CircuitDevices IDT74FCT3245APGU14U15U16 Quad 3-Input NAND Gate: sim to74LVC10APWDH.U17 Quad 2-Input NOR Gate: sim to74LVC02APWDH.U18 Hex Inverter: sim to 74LVC04APWDH.U19 Quad 2-Input NAND Gate: sim to74HC1G00GW.U20thruU22Single Inverter: sim to 74HC1G04GW.U23 Quad 2-Input NAND Gate: sim to74HC1G00GW.W1 CA101211V1 Cable: Input To Power Supply.W2 CA101212V1 Cable: Output From Power Supply.84 MM101271V1 R1A
PARTS LISTSYMBOLPARTNUMBER DESCRIPTIONMM101271V1 R1A 85
IC DATA14.0IC DATA13.1CONTROLLER BOARD (A2)U1Single Buffer with 3-State Output###### (Fairchild, NC7SZ125M5, SOT23-5)U2, U78M x 16 SDRAM, PC100###### (Micron, MT48LC8M16A2TG-8E)Continued on next pageMM101271V1 R1A 86
IC DATAContinued from previous pageU3Silicon Serial Number###### (DALLAS, DS2401P)MM101271V1 R1A 87
IC DATAU4Clock Buffer##### (Cypress, CY2305SC-1)U5, U1210/100-TX/RX Ethernet Transceiver##### (AMD, AM79C874VC)Continued on next page88 MM101271V1 R1A
IC DATAContinued from pervious pageU6, U8Octual Buffer, 3.3V##### (TI, 74LVC244ADB)MM101271V1 R1A 89
IC DATAU9Microprocessor, 66MHz###### (Motorola, XPC860PZP66D4, BGA357)MM101271V1 R1A 90
IC DATAU10, U111M x 16/2M x 8 Flash, Simultaneous Read/Write###### (AMD, AM29DL163DB90E1)MM101271V1 R1A 91
IC DATAU13RS232 Transceiver, 5V, 2-TX, 2-RX###### (MAXIM, MAX202CSE)U14EEPROM, I2C, 16k x 8, 3.3V###### (Atmel, AT24C128N, SOIC8)92 MM101271V1 R1A
IC DATAU15, U26I2C Bus 8-Bit I/O###### (Philips, PCF8574A)PIN IDENTIFICATIONSYMBOLPIN DESCRIPTIONA0 1 Address Input 0A1 2 Address Input 1A2 3 Address Input 2P0 4 Quasi-bidrectional I/O 0P1 5 Quasi-bidrectional I/O 1P2 6 Quasi-bidrectional I/O 2P3 7 Quasi-bidrectional I/O 3Vss 8 Supply GroundP4 9 Quasi-bidrectional I/O 4P5 10 Quasi-bidrectional I/O 5P6 11 Quasi-bidrectional I/O 6P7 12 Quasi-bidrectional I/O 7INT 13 Interrupt Output (Active LOW)SCL 14 Serial Clock LineSDA 15 Serial Data LineVDD 16 Supply VoltageU16Phase-Lock-Loop (PLL)###### (TI, 74HCT4046ADB)MM101271V1 R1A 93
IC DATAU17, U20Single Inverter###### (Philips, 74HC1G04GW)U18, U22, U23HEX Buffer###### (Philips, 74HC14PW)94 MM101271V1 R1A
IC DATAU19Octal XCVR, BUS HOLD, 3.3V###### (Philips, 74LVCH245APW)U21RS485 Transceiver###### (TI, 75176BD)MM101271V1 R1A 95
IC DATAU24RS232 Transceiver, 3V to 5.5V, 3-TX, 5-RX###### (MAXIM, MAX3241CAI, SSOP28)U25+5V Regulator, 1.5A###### (LINEAR TECH, LT1086CM-3.3)96 MM101271V1 R1A
IC DATAU27144 PIN CPLD###### (ALTERA, EPM3256ATC144)MM101271V1 R1A 97
IC DATAU28QUAD UART (QUART)###### (Philips, SC28L194A1BE)98 MM101271V1 R1A
IC DATAU29, U32HEX Buffer###### (Philips, 74HCT14PW)U30RS-232 Transceiver, 5V, 4-TX, 5-TX###### (MAXIM, MAX213CAI)MM101271V1 R1A 99
IC DATAU31Reset Supervisor###### (Dallas, DS1818R-10)U33, U34, U35, U39HEX Open-Collector Output Drivers###### (Philips, 74F06AD)U36RS232 Transceiver, 3V to 5.5V, 5-TX, 3-RX###### (MAXIM, MAX3237CAI)100 MM101271V1 R1A
IC DATAU37Hot Swap Controller###### (LINEAR TECH, LTC1422)U38Single NAND Gate###### (Philips, 74AHC1G00GW)MM101271V1 R1A 101
IC DATAU40555 Timer###### (National, LMC555CM)102 MM101271V1 R1A
IC DATA6.8MODEM DAUGHTER BOARD (A8)U1Microprocessor#### (Dallas 80C323)MM101271V1 R1A 103
IC DATAU2 & U464k x 8 SRAM#### (IDT71V124SA)U3Dual Port RAM#### (IDT70V05L55PF)Continued104 MM101271V1 R1A
IC DATAContinuedU5Address Decoder#### (LVC138)U63.3V – 5V Converter#### (IDT74FCT)U78-Bit Latch#### (VC373A)U8############ (####)U9RF Modem#### (TI ROP101688/4C)U10PL Modem#### (####)MM101271V1 R1A 105
IC DATAU11VDI Modem#### (####)U12Adder Bus Buffer#### (IDT74FCT163245C/A)U13Data Bus Buffer#### (####)U146.9ROCKWELL MODEM INTERFACE CARD (A3)U1Dual Mono Flip-FlopsRYT 306 2024/C (74HC4538D)U2MICROCIRCUIT RYT 306 2019/C (74HC86)U3MICROCIRCUITRYT 108 6003/C (TLC555ID)U4Dual Operational AmplifiersRYT 101 6164/1 (RC4558D)106 MM101271V1 R1A
IC DATAU5RS232 3+3 Transceivers ±5VRYT 109 6073/1 (Motorola, MC145406DW)6.10ANALOG FILTER BOARD (A4)U2###### (Motorola, MC79M05BT)U3Dual 4-Stage Binary Ripple Counter###### (Motorola, MC74HC393AD)MM101271V1 R1A 107
IC DATAU4Remote 16-Bit I/O Expander for I2C-Bus###### (Philips, PCF8575CTS)U5 & U10High Slew Rate, Wide Bandwidth, Single Supply Operational Amplifier###### (Motorola, MC33074D)U6, U15, U17, U19 & U28High Slew Rate, Wide Bandwidth, Single Supply Operational Amplifier###### (Motorola, MC33072D)U7Fault-Protected, High-Voltage Single 8-to-1/Dual 4-to-1 Multiplexers###### (Maxim, MAX4508ESE)108 MM101271V1 R1A
IC DATAU8Addressable Dual Digital Potentionmeter###### (Dallas, DS1803Z-010)U9, U18 & U22SPST/SPDT Analog Switches###### (Maxim, DG419DY)U118th-Order, Lowpass, Switched-Capacitor Filters###### (Maxim, MAX292ESA)U12 & U33Low Offset Voltage Dual Comparators###### (Motorola, LM393D)MM101271V1 R1A 109
IC DATAU14 & U208th-Order, Lowpass, Elliptic, Switched-Capacitor Filters###### (Maxim, MAX294EWE)MM101271V1 R1A 110
IC DATAPIN NAME FUNCTION1 CLK Clock input – use internal orexternal clock.2 V- Negative Supply pin.Dual supplies:-2.375V to –5.5V.Single supply: V-= 0V.3OPOUT Uncommitted Op-Amp Output4 OP IN Inverting input to theuncommitted op amp. Thenoninverting op amp is internallytied to GND.5 OUT Filter Output6 GND Ground. In single-supplyoperation, GND must be biasedto the mid-supply voltage level.7 V+ Positive Supply pin. Dualsupplies: +2.375V to +5.5V.Single supply: +4.75V to +11.0V8 IN Filter Input.U16 & U25###### (Linear Tech, LTC4861S)U21High Performance Switched Capacitor Universal Filter###### (Linear Tech, LTC1059S)MM101271V1 R1A 111
IC DATAU238-Bit A/D and D/A Converter###### (Philips, PCF8591TD)U24+5V-Powered, Multi-Channel RS-232 Drivers/Receivers###### (Maxim, MAX232AESE)U26###### (Linear Tech, LTC4891S)112 MM101271V1 R1A
IC DATAU27Dual Peripheral Drivers###### (TI, SN75451BD)U31Fault-Protected, High-Voltage, Single 4-to-1/Dual 2-to-1 Multiplexers###### (Maxim, MAX4534ESD)U32HEX Inverter###### (Motorola, MC14069UBDR2)•MM101271V1 R1A 113
IC DATAMM101271V1 R1A 114

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