HARRIS TR-307-X2 User Manual

MM101271V1 R1A
Maintenance Manual
SitePro Controller Shelf Assembly EA101209V1
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 from attempting to decompile, reverse engineer, or disassemble the Object Code, or in any other way convert the Object Code into 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 the supplier. Any repairs, alterations or substitution of recommended parts made by the user to this equipment not approved by the manufacturer could void the user's authority to operate the equipment in addition to the manufacturer's warranty.
NOTICE!
The software contained in this device is copyrighted by Com-Net Ericsson Critical Radio Systems, Inc. Unpublished rights are reserved under the copyright laws of the United States.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 manual necessitated by typographical errors, inaccuracies of current information, or improvements to programs and/or equipment, may be made by Com-Net Ericsson Critical Radio Systems, Inc., at any time and without notice. Such changes will be incorporated into new editions of this manual. No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, for any purpose, 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.
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MM101271V1 R1A
Copyright August 20001, Com-Net Ericsson Critical Radio Systems, Inc. All rights reserved.
MM101271V1 R1A 3
TABLE OF CONTENTS
TABLE OF CONTENTS
Page
MM101271V1 R1A 4
TABLE OF CONTENTS
1.0SPECIFICATIONS1......................................................................................................................7
2.0RELATED PUBLICATIONS.........................................................................................................8
3.0SAFETY SYMBOLS.....................................................................................................................9
4.0INTRODUCTION........................................................................................................................10
4.1APPLICATIONS.......................................................................................................................................10
4.2COMMUNICATIONS..............................................................................................................................11
4.3COMPATIBILITY
4.4SYSTEM
EXTERNAL INTERFACES.....................................................................................................12
4.4.1Station Control.......................................................................................................................................12
4.4.2Simulcast Control...................................................................................................................................14
4.4.3Conventional Control.............................................................................................................................15
4.4.4Voter Control..........................................................................................................................................15
4.4.5Asynchronous Serial Ports.....................................................................................................................16
4.4.6Synchronous Serial Ports.......................................................................................................................16
4.4.7Power.....................................................................................................................................................16
11.DESCRIPTION...........................................................................................................................18
5.1INDICATORS
5.1.1Indicators...............................................................................................................................................18
5.1.2Controls..................................................................................................................................................19
5.2ROCKWELL
5.3LOW
SPEED AND HIGH SPEED DATA FILTERS................................................................................20
5.3.1Low Speed Data Decode Filter..............................................................................................................20
5.3.2High Speed Data Encode Filter.............................................................................................................20
5.4INTERFACE
5.5COMMUNICATION
6.0CIRCUIT ANALYSIS..................................................................................................................24
6.1SHELF
ASSEMBLY.................................................................................................................................24
6.2INTERCONNECT
6.3CONTROLLER
6.3.1Block Diagram.......................................................................................................................................26
6.3.2System I/O..............................................................................................................................................26
6.3.3Blackplane..............................................................................................................................................32
6.3.4CPU........................................................................................................................................................36
6.3.5Modem Daughter Board Connector.......................................................................................................38
6.4.5Electrically Programmable Logic Device (EPLD)................................................................................39
6.7Ethernet Ports...........................................................................................................................................39
6.4.6I2C Bus...................................................................................................................................................40
6.4.7Memory...................................................................................................................................................41
6.5...................................................................................................................MODEM
6.1Modems.....................................................................................................................................................45
6.23.3V/5V Interface......................................................................................................................................45
6.3Microprocessor.........................................................................................................................................45
6.4Code Memory............................................................................................................................................46
6.5Data Memory.............................................................................................................................................46
6.6Dual Port Ram..........................................................................................................................................46
6.7Troubleshooting Aids................................................................................................................................47
6.4ROCKWELL
7.0QIUCC Connector.....................................................................................................................................48
6.2Dual Port RAM..........................................................................................................................................48
6.3Microcontroller.........................................................................................................................................48
6.48-bit Latch.................................................................................................................................................48
6.5Address Buffer...........................................................................................................................................48
6.6Data Buffer................................................................................................................................................48
6.7Code SRAM...............................................................................................................................................48
6.8Data SRAM................................................................................................................................................48
AND MIGRATION...................................................................................................12
AND CONTROLS............................................................................................................18
MODEM.............................................................................................................................19
CONNECTIONS................................................................................................................20
LINKS....................................................................................................................21
BOARD (A1)..............................................................................................................26
BOARD (A2)..................................................................................................................26
DAUGHTER BOARD 42
MODEM INTERFACE CARD (A3)...................................................................................48
MM101271V1 R1A 5
6.9Page Connections......................................................................................................................................48
6.10Address Decoder.....................................................................................................................................48
6.11Diagnostic Connector.............................................................................................................................48
6.123/5 Converter...........................................................................................................................................48
6.13I/O Connector..........................................................................................................................................49
6.14RF Modem...............................................................................................................................................49
6.15PL Modem...............................................................................................................................................49
6.16VDI Modem.............................................................................................................................................49
6.4ANALOG
BOARD (A4)............................................................................................................................50
6.5.1Quad ADC and Single DAC...................................................................................................................50
6.5.28-Bit I/O Expander for I2C Bus.............................................................................................................50
6.5.3–5 Volt Generation.................................................................................................................................50
6.5.4High-Speed Data Transmit Filters.........................................................................................................51
6.4.49600 Baud Narrow Band.......................................................................................................................52
6.5.68:1 MUX.................................................................................................................................................52
6.5.7Dual Digital Pot.....................................................................................................................................52
6.5.8Inverting Buffer/Amplifier......................................................................................................................52
6.5.9Analog Switch.........................................................................................................................................52
6.5.8Clock Generation...................................................................................................................................52
6.5.9Low Speed Data Decoder Filter............................................................................................................53
6.5.10Low Speed Data Encode Filter............................................................................................................53
6.6POWER
6.7MISCELLANEOUS
SUPPLY (A5).............................................................................................................................53
INFORMATION.....................................................................................................54
6.7.1Serial Port Data Format........................................................................................................................54
6.7.2Failsoft Data Format.............................................................................................................................54
6.7.3T1/E1 Interface.......................................................................................................................................54
6.7.4Phone Port Data Format.......................................................................................................................54
7.0INSTALLATION..........................................................................................................................55
8.0CONFIGURATION.....................................................................................................................56
9.0PROGRAMMING.......................................................................................................................57
10.0TROUBLESHOOTING.............................................................................................................58
11.0LIGHTNING PROTECTION GROUNDING.............................................................................59
12.0GLOSSARY..............................................................................................................................61
13.0PARTS LIST.............................................................................................................................62
14.0IC DATA...................................................................................................................................86
13.1CONTROLLER
6.8MODEM
DAUGHTER BOARD (A8)....................................................................................................103
6.9ROCKWELL
6.10ANALOG
BOARD (A2)................................................................................................................86
MODEM INTERFACE CARD (A3).................................................................................106
FILTER BOARD (A4).........................................................................................................107
6 MM101271V1 R1A
SPECIFICATIONS
1.0 SPECIFICATIONS
INPUT VOLTAGE +13.8±20% VDC CURRENT DRAIN
Without 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 TRANSMISSION
High Speed 9600 ±1bps (EDACS Wideband)
Low Speed 150 ±1bps COMMUNICATION INTERFACE
Site Controller (trunked)
Protocol RS-232C Data Format 1 start bit, 1 stop bit, and 8 data bits Data Rate 19.2 kilobaud
Back-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 bits Data Rate 19.2 kilobaud
1
4800 ±1bps (EDACS Narrow band)
1
These specifications are intended to be used by the service technician during servicing. Refer to the appropriate
Specification Sheet for the complete Specification.
MM101271V1 R1A 7
2.0 RELATED PUBLICATIONS
The SitePro Controller trunking shelf is used in several applications, broadly including Voting, EDACS®,Aegis, and Digital Voice. In each of these applications the same
SitePro Controller shelf is used, however, the Logic Board operates differently because of different jumper configuration, interfacing hardware, and software. Refer to the appropriate Com-Net Ericsson technical publication for additional information on each application as follows:
RELATED PUBLICATIONS
Publication
MM101343V1 MM#######V1 Rockwell Modem ROA 117 2247 LBI-31981 Digital Voice Voting Tone Board Maintenance Manual LBI-38462 EDACS Voter Interface Board Maintenance Manual LBI-38896 EDACS Site Downlink and CEC/IMC Uplink Configuration
MM#######V1
LBI-38985 EDACS Site Controller Maintenance Manual MM#######V1
MM#######V1
MM#######V1 MM#######V1
LBI-39004 EDACS Guardog Installation and Operation Manual MM#######V1 SitePro Shelf Programming Manual
Title SitePro Installation Manual
Manual EDACS Voter Digital Receiver and Selector ProSite
Configuration Manual
SitePro Conventional Network Interface (CNI) Configuration Manual
EDACS Single Channel Autonomous Trunking (SCAT) SitePro and Downlink SitePro Configuration Manual
EDACS Station ProSite Configuration Manual EDACS Test Unit and Alarm Interface (TUAI) SitePro
Configuration Manual.
MM101271V1 R1A 8
SAFETY SYMBOLS
3.0 SAFETY SYMBOLS
WARN ING
CAUTION
NOTE
The WARNING symbol calls attention to a procedure, practice, or the like, which, if not correctly performed or adhered to, could result in personal injury. Do not proceed beyond a WARNING symbol until the conditions identified are fully understood or met.
The CAUTION symbol calls attention to an operating procedure, practice, or the like, which, if not performed correctly or adhered to, could result in damage to the equipment or severely degrade the equipment performance.
The NOTE symbol calls attention to supplemental information, which may improve system performance or clarify a process or procedure.
h
The ESD symbol calls attention to procedures, practices, or the like, which could expose equipment to the effects of Electro-Static Discharge. Proper precautions must be taken to prevent ESD when handling circuit modules.
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MM101271V1 R1A
4.0 INTRODUCTION
The Com-Net Ericsson Critical Radio Systems group has developed a Motorola PowerQuicc-based CPU to replace the 8051-based GETC board due to memory limitations. In addition to replacing the functionality of the GETC module, other capabilities have been added. including support of ethernet.
This manual provides maintenance and servicing information for Com-Net Ericsson SitePro Controller Shelf Assembly EA101209V1
2
. Production versions of this shelf
consist of the following components:
Shelf Assembly MA101080V1
Chassis MA101080V2
Interconnect Board Assembly (A1) CB101073V1
Controller board Assembly (A2) CD101069V1
Modem Daughter Board (A8) CB101074V1
Rockwell Modem Interface
Card Assembly (A3) ROA 117 2247 Rockwell Modem Assembly (A7) RYTUZ 921 01/1
Analog Board (A4) CB101070V1
Power Supply Module (A5) CONDOR DP1719
Display Module (A6) MA101082V1
Display Board Assembly (A6-A1) CB101077V1 Cable (A6-W1) CA101222V1
Input Cable to the Power Supply (W1) CA101211V1
Output Cable from the Power Supply (W2) CA101212V1
Data Cable (W
#) CA101213V1
4.1APPLICATIONS
The SitePro Controller can be installed and programmed for several different station applications. The basic programming is for the Station Trunking Shelf enables the station to function as part of an EDACS trunked communication system by providing digital signaling and transmitter control of the associated base station. In addition, the SitePro Controller provides an interface between the base station repeater, the Site Controller or Site Interface Module (SIM) and other c hannel SitePro Controller(s) at the same time.
By reconfiguring the SitePro Controller shelf hardware and programming the operation through the programming port, located on the front panel, the SitePro Controller can be used as an/a:
Uplink/Downlink – Configured as either an Uplink or Downlink, the SitePro
Controller provides the communications link between the Transmit Site and the
CEC/IMC switch.
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The Service Technician(s) should always consult application manuals, Software Release Notes (SRN), and Specific
Customer information provided with the system whenever the equipment requires service or repair.
. This shelf
10 MM101271V1 R1A
SCAT –TheSitePro Controller can be programmed to provide command and
control of a Single Channel Autonomous Trunking (SCAT) Site.
CNI –ProgrammedasaConventional Network Interface (CNI), the SitePro
Controller provides the communication link between a conventional
communications site (analog) and an EDACS trunking system (digital).
Satellite Receiver –TheSitePro Controller can be programmed to provide
command and control of Satellite (Auxiliary) Receivers and communication to the
Voter Digital Receiver.
Voter Digital Receiver –TheSitePro Controller can be programmed to process
digital data from Satellite Receiver SitePro Controller(s) for input to the Voter
Selector.
Voter Selector –TheSitePro Controller can be programmed to control the voting
processes and select the sites with the best signals.
VDI – Programmed as a Voter Digital Interface, the SitePro Controller provides a
path for Voter and Simulcast systems to the Jessica PBX system when making digital
calls.
Simulcast Control Point and Tx Site – The SitePro Controller can be
programmed to provide Simulcast system command and control.
3
4.2COMMUNICATIONS
The following communication modes are available:
1. The SitePro Controller can communicate with Personal Computers (PC’s) through
ethernet ports J5 and J6.
2. The SitePro Controller can communicate with other devices, such as Site
Controllers or the CEC/IMC switch, through the Serial Ports at J14, using an RS-232
serial data format operating at 19.2 kilobaud. Connector J14 provides connection to 6
telephone lines and 6 serial ports.
3. The SitePro Controller can communicate with other SitePro Controller(s) in the
Failsoft or Enhanced mode, over two Backup Serial Links (BSL)ortwoRockwell
Modems (RM’s) through connector J4. This link uses 0-13.8 VDC levels at 19.2
kilobaud.
4. The SitePro Controller uses the Frame Sync Line (FSL), also through connector
J4, to communicate timing between SitePro Controllers. This line uses a 0-13.8
VDC bus that carries a periodic negative pulse.
5. A 9600 or 4800 baud full-duplex, synchronous communication interface over an RF
Channel.
6. The SitePro Controller can use synchronous modem data to communicate with
other sites via telephone lines or microwave links.
7. The SitePro Controller interfaces with an Enhanced Digital Access Communication
System (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
NOTE
9. The SitePro Controller interfaces with a Conventional MASTR III base station or Digital Signal Processor (DSP) through 20 Pin CONV/DSP connector J11.
10. The SitePro Controller interfaces with a GPS Simulcast system t hrough 26 Pin SIMULCAST connector J13.
SitePro Controller interface functions vary from application to application and
between EDACS systems using MASTR II or MASTR III repeaters. It is necessary to refer to the Application Configuration Manual for details regarding t he specific hardware and software configuration of the SitePro Controller.
4.3 COMPATIBILITY AND MIGRATION
The 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 Control Channel fails or a configuration command is received. The SitePro Controller will, however, change modes as currently implemented by the GETC. For example, the SitePro Controller Control Channel can switch modes, without failure or configuration command, if it detects carrier.
For High Speed Data Modulation (A4) providing software configurable filtering, which is compatible with high speed data types.
,theSitePro Controller has a separate Analog Board
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 configuration supports EDACS and Simulcast. The analog and digital control signals provide an interface to a variety of base stations and are grouped by functionality.
4.4.1 Station Control
LocRxAudio - Analog input MASTR III level = 1 Vrms, Zin = 100Kohm, bias = ac coupled MASTR IIe level = .750 Vrms This signal is unfiltered local receiver audio from the base station also called
Volume/Squelch or VolSq and carries either High Speed Data (control signaling/digital audio) or Low Speed Data with analog audio. The two components are internally separated.
RUS - Digital TTL active high input This signal is the Receiver UnSquelch signal from the base station and is activated
when a carrier of sufficient signal strength (as determined by the squelch pot setting) is present.
LSD - Analog output level = 775 mVrms, Zout = 100ohm, bias = 0 volts
12 MM101271V1 R1A
This signal is the Low Speed Data output to the base station. The signal is conditioned through a low pass filter to remove frequency components above 300 Hz to allow multiplexing with analog voice audio.
HSD - Analog output
level = 775 mVrms, Zout = 100ohm, bias = 0 volts This signal is the High Speed Data output to the base station modulator. The signal is
conditioned through a specially designed filter needed to meet precise RF modulation bandwidth limitations.
LocPTT - Digital active low open collector output
This signal is the Local PT T control. This line, when low, will key up the base station transmitter and select the local receiver audio source for transmission.
RemPTT - Digital active low open collector output
This signal is the Remote PTT control. This line, when low, will key up the base station 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 to the base station transmit. When low, LSD/audio is routed to the base station transmit.
HSAcq - Digital output open collector output
This is the High Speed Acquisition control signal. A high or low signal produces a corresponding 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 the routing of receiver audio to the base station transmitter and line out. Muting occurs during 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 signal is the Low Speed Data source.
Synth_Clk – Digital open collector output
This signal provides the clock source for loading the base station frequency synthesizer (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 output
This signal provides the data source for loading the base station frequency synthesizer (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 output
This signal is the Synthesizer Load Enable control. This line, when high, permits the base station frequency synthesizer to be loaded and is used for protection against invalid transitions on the clock and data lines.
Synth_Locked – Digital TTL active high input
MM101271V1 R1A 13
This is the Synthesizer Locked signal. This line, when high, indicates that the base station synthesizer is locked. This is used for verifying successful synthesizer loading and is also continuously monitored as a failure mode.
PAFail - Digital TTL active high input diode isolated with pullup This is the Power Amp Failure indicator. This line, when high, indicates that the
base station PA has failed. A floating line asserts PA Fail.
RemAudioFlag - Digital TTL active low input, diode isolated This is the Remote Audio Present indicator. This line, when low, indicates that
remote audio from the IMC is present. This is generated by the base station in response to 2175Hz or E&M from the IMC.
FSL - Digital open drain bi-directional output: 100 mA sink (low), 10mA source (high) input: Zin = 1Kohm This is the bi-directional Frame Sync Line. The line is used as an output in the
Control Channel and as an input in the Working Channel.
ADCin – Analog input level = 0 to 5 volts, Zin = 100Kohm This is the 8-bit Analog to Digital Converter (ADC) input. This may be used to
monitor station PA power.
4.4.2 Simulcast Control
ext_PTT - Digital TTL active low input, diode isolated This is the external source for Local PTT and is only active in a Simulcast
configuration.
ext_A/Dmodctrl - Digital TTL active low input, diode isolated This is the external source for the Analog/Digital modulation control and is only
active in a Simulcast configuration.
ext_150 - Digital TTL active low input, diode isolated This is the external source for Low Speed Data and is only active in a Simulcast
configuration.
ext_9600baud - Digital TTL active low input, diode isolated This is the external source for High Speed Data and is only active in a Simulcast
configuration.
bypass - Digital TTL active low input, diode isolated This is the Simulcast bypass control signal. This line, when low, forces the site to
operate in non-Simulcast mode and is driven by the Simulcast control equipment.
inhibit - Digital TTL active low input, diode isolated This signal is the Simulcast alarm indicator. This line, when low, indicates the
presence of a Simulcast alarm and is driven by the Simulcast control equipment.
txclk_in - Digital TTL active low input, diode isolated
14 MM101271V1 R1A
This is the external source for High Speed Clock and is only active in a Simulcast configuration.
txclk_alarm - Digital TTL active high output
This signal is the Simulcast Tx Clock alarm indicator. This line, when high, indicates that the external source for High Speed Clock is missing and is only active in a Simulcast configuration.
4.4.3 Conventional Control
CPTT – Digital open collector output
This signal is the Combined PTT control. This line, when low, will key up the base station transmitter.
TxCGDis – Digital open collector output
This signal is the Transmit Channel Guard Disable control. This line, when low, prevents the transmission of Channel.
CGMon - Digital TTL active low input, diode isolated This signal is the Channel Guard Monitor control.
4.4.4 Voter Control
vot_emsq - Digital open collector output
This is the Voter E&M Squelch signal. This line, when low, indicates the presence of E&M from the Voter.
vot_rcvng - Digital active low input
This is the Voter Receiving signal. This line, when low, indicates that the Voter is receiving.
MM101271V1 R1A 15
INTRODUCTION
4.4.5 Asynchronous Serial Ports
The following asynchronous serial ports provide control links to the SitePro.
Table 1 –Asynchronous Serial Ports
Port Format Function
ENet0 Ethernet 10baseT Management ENet1 Ethernet 10baseT Spare SCC1 RS232 19200 8N1 MASTR III SCC2 RS232 19200 8N1 Spare SCC3 RS485 Spare Com1 BSL 38400 8N1 BSL Com2 BSL 38400 8N1 BSL Com3 RS232 19200 8N1 Spare Com4 RS232 19200 8N1 Spare SMC0 RS232 19200 8N1 Program/Debug SMC1 RS232 38400 8N1 Spare
4.4.6 Synchronous Serial Ports
The following synchronous serial ports provide data and control paths from the SitePro to the base station (High Speed Data), to the IMC (Phone Line), and to optional Voter equipment (VDI).
Note that SSP0 is a new interface port providing unfiltered high speed data to/from a DSP based modulator.
Table 2 - Synchronous Serial Ports
Port Format Function Signals
SSP0 4800/9600 baud Local (RF)
Comm Link
SSP1 9600 baud Remote (PL)
Comm Link
SSP2 9600 baud Voter (VDI)
Comm Link
TxData, TxClock RxData, RxClock
TxData, TxClock RxData, RxClock CTS, RTS
TxData, TxClock RxData, RxClock CTS, RTS
4.4.7 Power
+13.8V - power supply input +13.8 volts, 1.5 amps (nominal), input range 10 to 30 volts This signal is the positive voltage supply for the SitePro Controller and should be
MM101271V1 R1A 16
INTRODUCTION
externally fused. An internal switching DC-DC converter will be used to supply +/­12 and +5volts to the SitePro Controller sub-components.
GND – power supply input
This signal is the ground connection for the SitePro Controller.
MM101271V1 R1A 17
11.DESCRIPTION
The SitePro Controller is essentially a processor with audio filtering and specialized I/O capability. Flexibility in design allows the SitePro Controller to be configured to function in many applications as suggested in the INTRODUCTION. Except for Configuration 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 on all RS-232C inputs and outputs. However, maximum lightning protection is achieved when the SitePro Controller is grounded to the cabinet earth-ground using Lightning Protection Circuitry Ground Kit 344A4500 and the Cabinet Grounding strap Kit 344A4730. Specific details for installing these grounding kits are found in the LIGHTNING PROTECTION section LIGHTNING PROTECTION GROUNDING of this manual.
DESCRIPTION
5.1INDICATORS AND CONTROLS
This section describes the indicators and controls visible and accessible from the front panel of the SitePro Controller Shelf Assembly.
There are two hinged doors on the front panel of the shelf assembly. Each door has a window so that indicators mounted on Control Board A2 and Rockwell Modem Interface Card A3 can be seen. Opening the Control Board door provides access to Reset
Pushbutton switch S1. This door also provides access to PROGRAMMING SERIAL PORT J8. The circuit boards can be removed from the shelf assembly through these
doors. An extender card can be inserted providing access to a board in a hot system.
5.1.1 Indicators
5.1.1.1 Controller Board Power Indicator
Green LED indicator D12 provided on the Controller Board indicates when power is applied to the shelf. This indicator is visible through the window in the hinged door on the front panel of the shelf.
5.1.1.2 Controller Board Status Indicators
Four Red LED status indicators L1 t hru L4 (D1 thru D4) are visible through the window in the hinged door. These indicators show the state of operation of the SitePro Controller. 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 in the hinged door. These indicators indicate when something is connected to ETHERNET 1 or ETHERNET 2 ports.
MM101271V1 R1A 18
DESCRIPTION
There are six other LED indicators on the Controller Board that are not visible unless the board is on an extender board. Yellow LED’s D7 and D10 indicate when there is transmit 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-T
Transceiver section and the 10/100 Base-T Transceiver sections).
5.1.1.3 Rockwell Modem Interface Card Indicators
There are five Red LED indicators on Rockwell Modem Interface Card A3. These LED’s are visible through the window in the hinged door and indicate +5V, +12V, -12V, RLDS and CTS respectively.
5.1.1.4 Display
Eight-digit LED Display Board A6-A1 mounts between the two hinged doors on the front panel of the SitePro Controller Shelf Assembly. Green LED D1 indicates POWER ON to the Display Board. This display displays Channel Status and Channel Information.
5.1.2Controls
Reset Pushbutton Switch S1 is the only control available on the front panel of the SitePro Shelf Assembly. It is used to restart the logic of the SitePro Controller.Itis
especially useful when a circuit board has been hot swapped.
5.2ROCKWELL MODEM
The 9600 Baud Rockwell Modem Board RYTUZ 921 01/1 mounts on top of Modem Interface 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 or microwave link. The data stream is sent to a full-duplex, four-wire, dedicated 3002 grade telephone line.
Controller Board A2 (CB101069V1) controls the associated modem to provide a high speed synchronous serial interface between the SitePro Controller and other EDACS elements. Receive and Transmit Phone Data Lines are two balanced pairs carrying Modem 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 SitePro Controller, the modem provides automatic adaptive signal equalization, allowing normal operation using input signal levels from -40 dBm to 0 dBm. The Rockwell Modem demodulates the input signal and the resulting data is transferred using a serial interface between the Rockwell Modem and the controller.
The modem senses a received signal by initiating a training state upon detecting an increase in the input signal level. The modem begins processing data at the end of the training state if the input signal is still above the nominal -40 dBm receiving threshold value. Otherwise, the modem returns to an idle mode at the end of the training state if the input signal is below the nominal receiving threshold value.
MM101271V1 R1A 19
DESCRIPTION
The duration of the modem training state is determined through control signals at the time of power up. Resetting the SitePro Controller (pressing S1) or cycling the SitePro Controller shelf operating power, initializes the Rockwell Modem for proper operation.
5.3LOW SPEED AND HIGH SPEED DATA FILTERS
The 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 Filter
The Low Speed Data (LSD) Decode Filter, part of Analog Logic Board A4, provides additional 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 Filter
The High Speed Data (HSD) Encode Filter, part of Analog Logic Board A4, selects only the 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 RF modem and passed on to the microprocessor.
5.4INTERFACE CONNECTIONS
Table 3 - Interface Connections
Connector Interface Connections
J1 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 ROA
117 2247.
J4 2 over 2 BSL/RM (Rockwell Modem). This connector consist of four
RJ11 connectors as follows:
RM 0 BSL 1
RM 1 BSL 0
J5 Eithernet 0. Connects to external PC’s. J6 Eithernet 1. Connects to external PC’s J7 4 Pin Power connector (+13.8 VDC). J8 Programming connector on the front of Controller Board A2 J9 Power Supply Output +12V, -12V and +5V. Cable W2 connects
between J9 and J2 on Power Supply Module A5 J10 Connects through cable A6-W1 to Display Module A6. J11 20 Pin connector for interfacing with a Conventional/DSP system.
QUART A
QUART B
20 MM101271V1 R1A
Connector Interface Connections
DESCRIPTION
J12
24 Pin connector for connecting to an Enhanced Digital Access Communication 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 twelve
RJ11 connectors as follows:
RM 0 QUART C SCC4
RS 485
RM 1 QUART D SCC2 SMC2 80C323
SCC3 80C323
PORT 0
PORT 1
N/U
N/U
5.5COMMUNICATION LINKS
Communication Modes available to the SitePro Controller are:
1. The SitePro Controller can communicate with other devices such as the Site
Controller, IMC, and RF Station. Communication occurs primarily through an RS­232C serial interface normally operating at 19.2 kilobaud. for a SitePro Controller interfacing with a Site Interface Module (SIM) this is set to 38.4 kilobaud.
2. The SitePro Controller can communicate with other SitePro Controllers in the Failsoft mode of operation, over a Backup Serial Link (BSL). The link uses 0-13.8 VDC levels and operates at 19.2 kilobaud and is ordinarily used in a bus configuration. For a SitePro Controller interfacing with a SIM this is set to 38.4 kilobaud.
NOTE
3. A timing signal called the Frame Sync Line (FSL) helps arbitrate the use of the BSL serial bus in the Voter configuration. The FSL is also used for timing purposes. In the the station configuration, FSL signals use 0-13 VDC levels to produce a periodic negative going pulse.
4. A 9600/4800 baud full-duplex, synchronous communication interface over an RF channel.
5. A 9600 baud phone line or microwave communication interface (this may be RS-232 or modem data) through a Rockwell Modem.
SitePro Controller interface functions vary from application t o application and between EDACS systems using MASTR IIe or MASTR III repeaters. It is necessary to refer to the Application Configuration Manual for details regarding t he specific hardware and software configuration of the SitePro Controller.
MM101271V1 R1A 21
DESCRIPTION
o
4-Pin POWER, 20-Pin CONV/DSP
& 20-Pin SIMULCAST Connecto r s
Analog Board (A4)
Controller Board (A2)
24-Pin EDACS, 4-Pin POWER &
20-Pin CONV/DSP Connectors
Back Views
Ethernet, SERIAL PORT &
BSL/RM Connectors
Interc Board
Top View
Front View
MM101271V1 R1A 22
Modem Daughter Board
Figure 1 - SitePro Controller Shelf Assembly
CIRCUIT ANALYSIS
Power Supply (A 5)
MM101271V1 R1A 23
6.0 CIRCUIT ANA LYSIS
The Theory of operation of each circuit board/card and module used in SitePro Controller Shelf Assembly EA101209V1 is described in the following paragraphs.
Refer to the Block Diagram in Figure 2 and Outline and Schematic Diagrams as listed in the TABLE OF CONTENTS.
The SitePro Controller is a Base Station Controller with redundant communication links [Backup Serial Links (BSL’s)]. The BSL’s provide for inter-channel communication with two 10Mbit Ethernet Ports. The BSL’s provide trunking communications as well as site configuration and database messaging. One Ethernet port is dedicated to Management System information. The second Ethernet Port is not supported at this time.
The SitePro Controller and System Interface Module (SIM) will use the primary BSL for trunking information and limited management system information. T he secondary link will ensure continued trunking operation in the event of a primary BSL failure
The SitePro Controller/base station interface for digital information, both receive and transmit, is 9.6k baud synchronous data. Additional digital control information is provided 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.
CIRCUIT ANALYSIS
The SitePro Controller, main controller board (A2) and AMPS modem board, replaces the CPTC GETC.
6.1SHELF ASSEMBLY
SitePro shelf Assembly EA101209V1 is a 19” Rack Mount, one Rack Unit device. It is enclosed 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 Serial connections (6 OVER 6 PHONE LINES & SERIAL PORTS) are stacked, two high using RJ type connectors (J14). The Ethernet connectors J5 & J6 (ETHERNET 0 & ETHERNET 1) are single height RJ connectors. The power connector (J7) and I/O connector (J
The front panel has two hinged access doors for insertion/removal of the Controller Board 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-digit display are viewable from the front panel.
The Shelf Assembly consists of Interconnect Board A1, which provides connectors to accommodate:
Controller Board CB101069V1 (A2)
Rockwell Modem Interface Card Assembly ROA 117 2247 (A3)
Analog Board CB101070V1 (A4)
#) are Molex type.
Power Supply DP1719 (A5)
Display Module MA101082V1 (A6)
MM101271V1 R1A 24
SitePro I n t e r fac e
Controller
MPC860 DS80C323 QUART USRT PLD
Analog
FILTERS LINE DRIVERS ANALOG SWITCHES ADC
Loc PTT Rem PTT A/D ModCtrl HSD LSD PA Fail Local Rx Audio Local Tx Audio RUS Rem Audio Flag Local Rx Mute
Synth_Locked Synth_Clk Synth_Data Synth_LdEn
ADCin
bypass inhibit ext_PTT ext_ADModCTrl ext_150 ext_HSD TxClk_in TxClk_alarm
CIRCUIT ANALYSIS
Local (station) Signals and Control
External (simulcast) Signals and Control
RMIC
ROCK WE LL MODEM LINE DRIVERS ANALOG SWITCHES
Pow er Suppl y
(swit ch mode)
+5v @2a +/- 12v
CPTT TxCGDis CGMon
Vot_emsq Vot_rcvng
SSP0 SSP1 SSP2
E0 E1
SCC1 SCC2 SCC3
SMC1
BSL/FSL0 BSL/FSL1 Com3 Com4
SP0 SP1
Conventional Signals and Control
Voter Signals and Control
Local (RF) HSD Remote (PL) HSD Voted (VDI) HSD
EtherNet Ports
Asy nchronous Serial Ports
MM101271V1 R1A 25
CIRCUIT ANALYSISN
Interconnect Board CB101073V1 is a passive printed circuit board that provides interconnections between all internal components of the SitePro Controller shelf and
interfaces the SitePro Controller shelf with the outside world (Refer to
Interface Connections, and Interconnection, Outline and Schematic Diagrams). Pi
filters U1 thru U29 eliminate any Electro Mechanical Interference (EMI).
Controller Board CB101069V1 contains all SitePro Controller logic and control functions except the power supply and Rockwell Modem (Refer to the Outline and Schematic Diagrams for the Controller Board as listed in the TABLE OF CONTENTS).
This Controller Board is based on an MPC860 microprocessor, the primary responsibility 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 port RAM to support the Modem Board and a 10/100 Mbit ethernet port. This port is available for Voice Over IP traffic. A second 10 Mbit ethernet port is available for management functions.
Figure 2 - SitePro Shelf Assembly Block Diagram
6.2INTERCONNECT BOARD (A1)
Table 3 -
6.3CONTROLLER BOARD (A2)
This board has sufficient memory to support 1M LID’s and 64k GID’s. It has LID and GID validation for all calls.
6.3.1Block Diagram
Figure 3 – Controller Board Block Diagram shows the connection of major components from a high level viewpoint. Schematic Diagram WD-CB101069V1, Sheet 2 also provides a Block Diagram for the Controller Board. These diagrams show the major components 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 Board
6.3.2System I/O
The System I/O circuits for the Controller Board are shown on Schematic Diagram WD­CB101069V1, Sheet 3 and include:
Oscillator For PHY’s 3.3V Power Monitor
JTAG Port Test Points
Board Insert Detection Circuit Programming Serial Port J8
26 MM101271V1 R1A
Hot Swap Controller Decouplers
3.3V Regulator
CIRCUIT ANALYSIS
MM101271V1 R1A 27
CIRCUIT ANALYSIS
BDM
29.4912 Mhz
Serial Number
HW ID
32.768 Khz
Batt
SDRAM 8M x 32
1:1 1:1
Enet PHY 10/100 Base T
MII
RTC3.0V
32
1:1 1:1
Enet PHY 10 Ba seT
SCC1
MPC860P 59 Mhz
32
XCVR
I2C
JTA G
SMC 1
SMC 2
SCC3
SCC4
I/O
INTsDATA
8
JTAG
5V
3.3V
+12V
JTAG
RS-232
RS-232
RS-232SCC2
RS-232
RS-485
JTAG
REG
CPLD
OUTs
INs
HSC
RJ-11
RS-232
5V
I/O Backplane
FLASH 1M x 32
EEPROM 32K x 8
LEDs
DIP SW
32
BSL
BSL
RS-232
RS-232
RS-232
RS-232
RS-232
RS-232
JTAG
I/O
1
2
3
QUART
4
PL I/O
RF
VDI
Modem Daughtercard
MM101271V1 R1A 28
Figure 3 - Controller Board Block Diagram
CIRCUIT ANALYSIS
MM101271V1 R1A 29
CIRCUIT ANALYSIS
6.2.1 Oscillator For Ethernet PHY’S
This circuit consists of crystal oscillator circuit Y1 powered by 3.3 V applied to Y1, Pin 4, Vcc. Oscillator circuit Y1 is biased on by resistor R49 connected to Y1, Pin 3, CTRL and produces 25 MHz on the output at Pin 3 through resistor R51 (OSC 25MHz). This output connects to the CLK25 inputs to the Ethernet 10 and Ethernet 10/100 Mbit
4
PHY’s
This JTAG PORT circuit consists of buffer U1 (NC7SZ125M5). This circuit allows programming directly to a microprocessor through connector J4.
The JTAG port is also routed to the Modem Daughterboard. This allows a future modem daughterboard to be designed with an Altera EPLD. If that future EPLD modem daughterboard is used, resistor R187 (0 ohms) must be removed from the board.
This circuit consists of NPN transistors Q6 and Q7. When the Controller Board is inserted into a live Interconnect Board, the base circuits of these transistors are connected to ground through connector J1B, Pins B1 and B32. Connector J1B, Pin B1 is MATE-DETECT-A and J1B, Pin B32 is MATE-DETECT-B. With the base of both transistors at ground, they are held in the off state. This allows POWER ON to cycle high and low as the r esult of 555 timer U40 running at a programmed rate. The POWER ON voltage is applied to Pin 2 of Hot Swap transistor (Q6 or Q7) is not connected to ground, POWER ON will not be applied to the HotSwap Controller.
.
6.2.2 JTAG Port
6.3.2.3.1Board Insert Detection Circuit
TM
Controller U37. If the base of either
6.2.4 Hot Swap™ Controller
Hot Swap™ controller (HSC) U37 allows Controller Board CB101069V1 to be safely inserted in or removed from Interconnect Board CB101073V1 while voltage is applied. Using external N-channel pass transistor Q5, the supply voltage to the Controller Board is ramped up at a programmable rate. A high side switch driver controls the N-channel gate for supply voltages ranging from 2.7V to 12V. A programmable electronic circuit breaker protects against shorts. The RESET output (U37, Pin 1) is used to generate a system reset when the supply voltage falls below t he programmable voltage. The POWER ON input to U37, Pin 2 is used to cycle the Controller Board power or to generate a soft reset.
6.2.5 3.3V Regulator
The 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 digital logic on the Controller Board and the Daughter Board.
The Hot Swap Controller (HSC) is used to ramp up the 5V power rail at a controlled rate. This, in addition to other considerations, will allow the Controller Board to be hot­swapable. The 5V output from this circuit will also power the 3.3 Volt regulator, thus
4
PHY is an Industry Standard for “Physical Interface.”
MM101271V1 R1A 30
CIRCUIT ANALYSIS
causing 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) is connected to the HSC chip so that the HSC can be automatically reset in the case of a circuit breaker fault.
6.2.6 3.3V Power Monitor
The 3.3V Power Monitor (U31) uses a precision temperature-compensated reference and comparator circuit to monitor the status of the 3.3V supply. If a loss of power is detected an internal power-fail signal forces reset to the active state, which is low. When the 3.3V supply returns to a normal state, the reset signal is kept active for approximately 150 ms to allow the power supply and microprocessor to stabilize. This 3.3V Power Monitor circuit also monitors Reset Pushbutton S1 on the reset output, U31, Pin 1. If the reset is pulled low, by pressing S1, a reset signal is generated upon release. The output of U31 is held in reset output (low) for approximately 150 ms.
6.2.7 Test Points
Test 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 J8
This 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 front of the SitePro Controller without removing it from the cabinet.
6.2.9 Decouplers
Decoupling capacitors (Decouplers) are used to eliminate high-speed transient noise in high-speed digital circuits. There are a number of decoupling capacitors used on the Controller Board. On sheet 3 of Schematic Diagram WD-CB101069V1 there are two
3.3V decoupling capacitors, C2 and C87. On sheet 5 there are three 3.3V decoupling
capacitors, C62, C83 and C113. There are also six 5.0V decoupling capacitors on sheet 5, 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 decoupling capacitors, C26, C38, C61, C67, C76, C88, C89, C98, C99 and C100. There is also one
5.0V decoupling capacitor on sheet 11, C55. On sheet12 there are ten 3.3V decoupling
capacitors, C29, C30, C33, C34, C37, C40, C43, C58, C59 and C50. On sheet 13 there are 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 are
MM101271V1 R1A 31
CIRCUIT ANALYSISN
five 3.3V decoupling capacitors, C32, C36, C42, C47 and C56. On sheet 17 there are four 3.3V decoupling capacitors, C77, C90, C91 and C105.
The Controller Board to Interconnect Board A1 ( Backplane) connector circuits are shown on Schematic Diagram WD-CB101069V1, Sheets 4-7 and include:
Board Connections I/O (1)
Serial I/O I/O (2)
Schematic Diagram WD-CB101069V1, Sheet 4 shows the single DIN96 connector, J7. This 96-pin connector has three layers of pins, J7A, J 7B and J7C. Each layer consists of 32 pins. J7B, Pins 1 and 32 are the MATE-DETECT-A and MATE DETECT-B connections. 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 the
2
I
C bus. CPU I/O SIGNAL PROTECTION DIODES D27, D29 connected to SCL and
SDA provide lightning protection for the I
6.3.3Blackplane
6.3.1 Board Connections
6.3.2 Serial I/O
2
C bus.
Numerous asynchronous and synchronous serial ports are brought to the Interconnect Board (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 a multidrop network. One microprocessor RS-232 port is intended to be used as a diagnostic or local programming port and will be brought to RJ-11 connector J8 on the front of the board in addition to the I/O Interconnect Board. Two ports from the QUART use BSL signaling.
All Serial ports are designed for full-duplex 115.2 kbaud communications with the exception of the RS-485 port U21 from the microprocessor SCC. This port is a half­duplex HDLC port and supports speeds up to 2 Mbaud.
U21 is a differential bus transceiver for bi-directional data communication on multiport bus transmission lines. This device combines a 3-state differential line driver and a differential input line receiver. The driver and receiver have active-high and active-low enables that are connected together externally to function as a direction control. The driver differential outputs and the receiver differential inputs are connected internally to form differential input/output I/O bus ports. These ports are designed to offer minimum loading to the bus when the driver is disabled or Vcc=0.
BSL signaling is accomplished through two identical circuits consisting of hex inverting Schmitt Triggers U23A/U23B, inverter buffer drivers U35A/U35B, Field Effect Transistors (FET) Q3/Q4, amplifier transistors Q9/Q10 and diodes D23/D25. Inputs to the microprocessor from the Interconnect Board (backplane) are through diode D23/D25 to the input of U23A/U23B. Schmitt Trigger U23A/U23B provides a well-defined output for 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) is high, diode D23/D25 is reversed biased making the input to U23A/U23B high and the output on the collector of Q9/Q10 also high. When the input is low, diode D23/D25 is
32 MM101271V1 R1A
forward biased and the input to U23A/U23B is low. The output on the collector of Q9/Q10 is also low.
Outputs from t he microprocessor to the backplane are through inverter buffer driver U35A/U35B, and FET Q3/Q4. The output RXA/RXB from the microprocessor is applied to the input of inverter circuit U35A/B35B. When this input to U35A/B35B is low, the output is high. This causes Q3/Q4 to conduct. Diode D32/D33 is forwarded biased and the output to BKP-BSL0/BSL1 is low. When the input to U35A/U35B is high Q3/Q4 does not conduct and the output to BKP-BSL0/BSL1 is high.
6.3.3 I/O
Other I/O’s are shown on Schematic Diagram WD-CB101069V1, Sheets 6 and 7. Inputs to the microprocessor from the backplane consists of identical circuits for different inputs. These circuits consist of inverter buffer driver circuits U18A thru F, Schmitt Triggers U22B thru D and U23C thru F (Figure 4). Identical circuits for different inputs also 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 biased and the input to the inverter goes low. This results in a sharp, well-defined output of the inverter going high. Outputs are:
REM-AUDIO PRESENT (U18A) EXTADIN (U22C)
CIRCUIT ANALYSIS
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)
5.0V 5.0V
BACKPLANE
MICROPROCESSOR
BAV99
Figure 4 - Input Circuits U18A thru F, U22B thru D and U23A thru F
In Figure 5 the Schmitt Trigger provides a sharp, well-defined input to the microprocessor
MM101271V1 R1A 33
CIRCUIT ANALYSISN
5.0V
MICROPROCESSOR BACKPLANE
5.0V
Figure 5 - Input Circuits U22A thru F, U29D and U32B
The FSL output from the microprocessor to the backplane is accomplished through inverter circuit U33A and FET Q2 (BKP-FSL).
The RX-MUTE output from the microprocessor to the backplane is accomplished through Inverter U33D and transistor circuit Q1 (BKP-RX_MUTE).
The EMSQTOAV output from the micropressor to the backplaned is accomplished through InverterU35C and transistor circuit Q6 (BKP-EMSQTOAV).
Other outputs from the microprocessor to the backplane are connected through identical circuits 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. Theses outputs are:
BKP-WALSH1 (U29B) BKP-RFTXDAT (U29F)
BKP-WALSH2 (U29C) BKP-RFTXCLK (U32A)
BKP-A/DMODCTL (U29E) BKP-LSDOUT (U32C)
5.0V
MICROPROCESSOR BACKPLANE
Figure 6 - Output Circuits U29B, C, E & F, U33C, E & F and U34A thru F
Figure 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 ANALYSIS
5.0V
MICROPROCESSOR BACKPLANE
Figure 7 - Output Circuits U33B, C, E, F, U34A, B, C, D, E, F and U35C, D, E & F
MM101271V1 R1A 35
CIRCUIT ANALYSIS
6.3.4CPU
The Central Processing Unit (CPU) circuits for the Controller Board are shown on Schematic Diagram WD-CB101069V1, Sheets 8 & 9 and include:
Microprocessor Microprocessor Support
6.3.4.1 Microprocessor
Microprocessor U9A is a Motorola MPC860P processor that has four SCC channels, two SMC channels, plus a 100 Mbit Fast Ethernet Controller. One of the SCC channels is used as a second ethernet port (10 Mbit) with all other SCC and AMC channels used as serial ports.
This microprocessor runs at 59 MHz using a 29.4912 MHz clock input. This frequency was selected for use by the baud rate generators to produce standard baud rates up to
115.2 kbaud without error. The microprocessor external bus runs at half the speed of the microprocessor (29.5 MHz).
The microprocessor provides a real-time clock that is used to provide time-of-day information to the application software. The real time clock runs off of a 32.768 kHz crystal and is provided with 3.0 Volt battery voltage via the microprocessor to keep time when power is off.
KAPWR pin of the
Four external interrupts are used in this design. The remaining unused three connect to the EPLD for future use. Connecting them to the EPLD makes l ater modifications easier. The external interrupt signals are specified in the following table.
Table 4 - External Processor Interrupt Signals
Device IRQ
(SPARE-EPLD) IRQ (NMI) QUART IRQ1 MODEM DB DUAL-PORT RAM IRQ2 (SPARE-EPLD) IRQ3 ETHERNET 10/100 IRQ4 ETHERNET 10 IRQ5 (SPARE-EPLD) IRQ6
All but one chip select are used in this design. The unused chip select is connected to the EPLD for future use. The microprocessor chip select signals are defined in the following table.
Table 5 - External Processor Interrupt Signals
Device IRQ Machine Data Bus Width
FLASH CS0 GPCM 32 Bit SDRAM CS1 UPMA 32 Bit QUART REGISTERS CS2 GPCM 8 Bit
MM101271V1 R1A 36
Device IRQ Machine Data Bus Width
QUART INTERRUPT VECTOR CS3 GPCM 8 Bits EPLD CS4 GPCM 8 Bits MODEM DB DUAL PORT RAM CS5 UPMB
5
8 Bits MODEM DB CODE RAM CS6 GPCM 8 Bits (SPARE-EPLD) CS7 N/A N/A
Note that there is both a 32-bit data bus and an 8-bit data bus. The 8-bit data bus is connected to the 32-bit processor data bus via an 8-bit transceiver. The output enable for the transceiver is controlled by ANDing all 8-bits chips selects together inside the EPLD.
6.4.2 Microprocessor Support
The microprocessor support as shown on Schematic Diagram WP-CB101069V1, Sheet 9 includes:
BDM Debug Port Connector Silicon Serial Number
Power-On Reset Configuration KAPWR Switch
32 kHz Crystal 8-Bit Bus Transceiver
CIRCUIT ANALYSIS
VDDSYN Filter MICTOR Logic Analyzer Connectors
BDM Debug Port Connector
For support, microprocessor U9A provides a dedicated serial port (BDM) for connecting a debugger/emulator. A debugger/emulator connected to this port allows a programmer to read/write registers and external peripherals, control program execution, etc. Many debuggers 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 pinout
Power-ON Reset Configuration
The Power-On Reset Configuration consists of four octal buffer/drivers U6A, U6B, U8A and U8B with 3-state outputs. This circuit ensures that at Power-On all circuits are reset to the starting state. Inputs to these circuits are through 10K BUS8 resistor networks RN7 and RN10. The outputs tie into bus D[0.31]. Each package is organized as two 4-bit line drivers with separate output-enable (OE) inputs. These inputs are tied together and connect 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 Crystal
This crystal circuit consist of crystal package Y3, resistors R90 and R98, capacitors C49 and C63. This circuits connects to U9A between pins N1 (EXTAL) and P1 (XTAL) and produces 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 is
not used, then a GPCM machine can be used for this chip select.
MM101271V1 R1A 37
CIRCUIT ANALYSISN
29 MHz Clock
The 29 MHz Clock consists of oscillator circuit Y2 and resistors R82 and R105. This circuit produces the oscillator frequency of 29.4912 MHz and connects to U9A at N2 (EXTCLK).
VDDSYNC Filter
This circuit consists of inductor L1 and capacitors C50 and C57. It connects between the
3.3V supply and the VDDSYN connection through capacitor C68 to microprocessor U9A, Pin T2 XFC.
Silicon Serial Number
A unique 64-bit electronic Serial Number chip U3 is used to store the board identification number. This chip has a 1-bit serial port, which interfaces to microprocessor U9A through an I/O port. In addition, four bits of hardware identification are made available to U9A through I/O ports. The Hardware ID is changed based by selectively populating a bank of resistors.
The primary purpose of this circuit is to
KAPWR Switch
The KAPWR switch consist of Schottky diodes D30 and D31 and battery BT1. This switch applies 3.3V supply or 3.3V battery to U9A, Pin
KAPWR
8-Bit Bus Transceiver
This circuit consists of 8-Bit Bus Transceiver U19 and resistor network RN15. The 8-Bit Bus connects to the microprocessor through 8-Bit Bus Transceiver U19. The output enable OE for the transcreiver is controlled by ANDing all 8-bit chip selects together inside EPLD U27.
MICTOR Logic Analyzer Connectors
These connections consists of J3, J5 and J6.
6.3.5Modem Daughter Board Connector
The Modem Daughter Board connector circuits for the Controller Board is shown on Schematic 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 Modem Daughter Board Section).
38 MM101271V1 R1A
CIRCUIT ANALYSIS
6.5.2 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 WD­CB101069V1, Sheet 11.
Access to various board inputs/outputs i s made available through Electronically Programmable Logic Device (EPLD) U27. The EPLD contains numerous read/write latches with a simple 8-bit interface to the microprocessor.
The EPLD is in-circuit programmable via the JTAG port using an Altera byte-blaster cable. A 10-Pin header is made available for this purpose. The EPLD JTAG port is also brought to microprocessor I/O pins to allow the microprocessor to load the EPLD configuration.
In addition to being an interface to the discrete I/O, the EPLD also divides clocks and provides the output enable logic for the 8-bit data bus transceiver.
6.7 Ethernet Ports
There are two Ethernet Port circuits for the Controller Board and they are shown on Schematic 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 Controller inside 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). The ethernet physical layer transceivers are the same for both ports, but the 10/100 Mbit port uses the MASTR II interface whereas the 10 Mbit uses a transceivers support 10/100 Base-T with full auto-negotiation capability, while the 10 Mbit port only advertises 10 Mbit capability.
The RJ-45 ethernet connectors are actually located on Interconnect Board A1 (Interconnect Board). T he ethernet physical layer chips and transformers reside on the Controller Board with the ethernet differential RX/TX signals brought to the RJ-45 connectors through the Interconnect Board connector. A single LINK OK status LED is provided for each ethernet port on the front of the Controller Board.
The 10Mbit Ethernet port uses the transceiver to the microprocessor SCC1 serial channel. When SCC1 is in Ethernet mode, the SCC pins have different functions (refer to the following table).
“7-wire” interface to connect the Ethernet physical
“7-wire” interface. The ethernet
Table 6 - 10 Mbit Ethernet Connections
SCC Ethernet Signal SCC Pin Name PHY Signal
TX TXD1 10TXD TENA RTS1 10TXEN
MM101271V1 R1A 39
CIRCUIT ANALYSISN
TCLK CLKx 10TXCLK CLSN CTS1 10COL RENA CD1 10CRS RX RXD1 10RXD TCLK CLKx 10RXCLK
In order to use both the SCC1 in Ethernet mode and I small microcode patch at startup. This relocates the affected overlapped registers. Make sure 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 Bus
2
C bus, the board software applies a
.
The I2C-bus is a two-wire serial bus (SCL and SDA) used for microcontroller-based control. The I WD-CB101069V1, Sheet 14. These circuits consist of Personality EEPROM U14, and 8­bit I/O expanders for the I
32k of non-volatile data storage is provided by EEPROM U14. EEPROM U14 is organized as 32kx8 and is accessible via the I
Serial EEPROM U14 has a write protect pin. It is active high and has an external pull-up to always make it active. To write to U14, port PB23 on the microprocessor is defined as an output and driven low. To write protect the EEPROM after writing to it, port PB23 is defined as an input and the pull-up activates the write protect signal.
Several peripherals are available to the microprocessor through the I to a 32kbyte EEPROM, there is an 8-bit writable latch for driving 4 LED’s and an 8-bit readable latch for reading the status of an 8-bit DIP switch. The I the Interconnect Board for accessing other off-board peripherals (i.e. LED display). I bus addresses are as follows:
Device Addresses
LED’s 0x40 DIP Switch 0x46
2
C Bus circuits for the Controller Board are shown on Schematic Diagram
2
C bus U15 and U26.
2
C port of microprocessor U9A.
2
C Bus. In addition
2
C bus is also brought to
Table 7 - I2C Bus Addresses
2
C
EEPROM 0xA0 Digital Pot 0x50 ADC/DAC 0x9E 16-Bit Expander 0x4C Display 0x4A
6.4.7Memory
The Memory circuits for the Controller Board are shown on Schematic Diagram WD­CB101069V1, Sheets 15 & 16 and include:
40 MM101271V1 R1A
CIRCUIT ANALYSIS
DRAM Circuits U2 & U7 Flash Circuits U10 & U11
6.9.1 DRAM
Two 128-Mbit, 16 bit wide synchronous DRAM Integrated Circuit modules U2 and U7 are organized in a 4M x 32 configuration. These two modules provide a minimum of 16 Mbytes of storage, upgradeable to 64 Mbytes. The following table shows the MPC860P bank addresses for the different DRAM memory sizes.
Table 8 - DRAM Bank Memory Ranges
Bank 64-Mbit (DRAM) 128-Mbit (2xDRAM) 256-Mbit (SDRAM)
Bank 1 0x003FFFFF – 0x00000000 0x003FFFFF – 0x00000000
0x013FFFFF – 0x01000000
Bank 2 0x007FFFFF – 0x00400000 0x007FFFFF – 0x00400000
0x017FFFFF – 0x01400000
Bank 3 0x00BFFFFF – 0x00800000 0x00BFFFFF – 0x00800000
0x01BFFFFF – 0x01800000
Bank 4 0x00FFFFFF – 0x00C00000 0x00FFFFFF – 0x00C00000
0x01FFFFFF – 0x01C00000
0x003FFFFF – 0x00000000 0x013FFFFF – 0x01000000 0x023FFFFF – 0x02000000 0x033FFFFF – 0x03000000
0x007FFFFF – 0x00400000 0x017FFFFF – 0x01400000 0x027FFFFF – 0x02400000 0x037FFFFF – 0x03400000
0x00BFFFFF – 0x00800000 0x01BFFFFF – 0x01800000 0x02BFFFFF – 0x02800000 0x03BFFFFF – 0x03800000
0x00FFFFFF – 0x00C00000 0x01FFFFFF – 0x01C00000 0x02FFFFFF – 0x02C00000 0x03FFFFFF – 0x03C00000
6.9.2 FLASH
Two flash memory modules U10 and U11 are organized as 1M x 32 for non-volatile program storage (Flash). These two modules have 4 Mbytes of flash memory with the ability of expansion up to 8 Mbytes. The program execution takes place directly from flash so that performance is as important as is the ability to load new code while in the lab and while in the field.
6.9.3 Quad UART
The QUART circuit for the Controller Board is shown on Schematic Diagram WD­CB101069V1, Sheet 17.
Universal Asynchronous Receiver-Transmitter (UART) U28 is used to handle asynchronous serial data communication. Asynchronous means that the data is not synchronous, that is, it is not occurring at a steady constant rate, but is being transmitted intermittently through serial ports. In data transmission, serial means, transmitting one bit at a time.
The serial port is a general-purpose interface that conforms to the Recommended Standard–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 ANALYSISN
Quad 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 asynchronous and run at 14.75 MHz, the microprocessor bus clock divided by 2 inside the EPLD. The communication clock input will be 3.6864 MHz, the microprocessor bus clock divided by 8 inside the EPLD. None of the I/O ports of the QUART will be used, but the ports are connected to mod points in case of a later use.
The QUART uses two chip selects, CS2 and CS3. Chip select CS2 is used when accessing the QUART registers. Chip select CS3 is used after an interrupt to read the interrupt vector.
6.5 MODEM DAUGHTER BOARD
The Modem Daughter Board contains three synchronous serial ports (modems) and a local microprocessor. This board plugs into the Controller Board using two connectors, QUICC (J9) and I/O (J2). Refer to Figure 4 – Modem Daughter Board Block
Diagram.
The microprocessor interface is a simple 8-bit asynchronous port with two separate chip selects. One chip select controls access to an 8k x 8 dual port RAM. The other chip select controls access to the Modem Daughter Board microprocessor local memory. The Controller Board microprocessor loads the Modem Daughter Board local memory with code before releasing the Modem Daughter Board reset. The Modem Daughter Board microprocessor runs from a 14.7 MHz clock generated by dividing down the 29.5 MHz Controller Board microprocessor output clock inside the EPLD.
Circuits for the Modem Daughter Board are shown on Schematic Diagram WD­CB101074V1, Sheet 1. The Outline Diagram is shown on PS-CB101074V1.
Modem Daughter Board CB101074V1 mounts on the Controller Board and exists primarily to support Modem chips, U9, U10, and U11. These modems process 9600 baud serial 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 the transmit data, and processes the receive data for use by the system.
The microprocessor communicates with the QUICC processor on the Controller Board via Dual Port RAM U3.
There is no non-volatile memory on the Modem Daughter Board. Code is loaded into Code RAM (U2) via an interface from the QUICC processor.
Most of the circuitry on the Modem Daughter Board operates from a 3.3V supply. T he Modem chips, however, require 5V. Thus a 3.3V to 5V conversion (U6) is needed for all signals to the Modem chips.
42 MM101271V1 R1A
MM101271V1 R1A 43
QUICC
QD0 - QD7
QA0 - QA15
QRD/
QDPRCS/ CEL/
QWR/ R/W/L
MODINT2NUC INTL/
BSY/ BUSYL/
14.756MHz 14.756MHz
RESET2MOD RESETIN/
R/W/L
CODECS/
RESETIN/
IFC
J1
CODE-A16
CODECS/QCODECS/ DEL/
PSEN/
U3
DUAL
PORT RAM
A0 - A12
CEL/ CEL CER DFRCS/
R/WL/ R/WRR/WL WR/
BUSYL/
INTL/ INTL# INTR INT/R
3.3V
RESETRESET
BUSYR
SEML SEMR
3.3V
DIR
BUFFE R (8)
OE
DIR
OE
BUFFE R (16 )
PSEN/
M/S
U13
DATA
U12
ADDER
D0 - D7
RD/OEL/ OEL OER
D0 - D7
A0 - A15
CODE-A16
EA
80C323
X114.746 MHz
RESET RESET
0 PE .4 0 PE .5 1 P1.0 0 P1.1
0 P1.4 0 P1.6
3.3 V
OE/
U1
P3.2 INT0/
P3.3 INT1/ P1.5 INT3/
P1.7 INT5/
A8 - A15
U2
CODE SRAM
64k x 8
P3.0 P3.1 P3.2 P3.3
P3.7 P3.6
D0 - D7 A0 - A7
D0 - D7
A16
RXD0
TXD0
RSD1
TXD1 INT0/
INT/R
RWINT/ PLINT/
RD/ WR/
ALE
PSEN/
A0 - A15
A0 - A7
A15
LE
U7
8-BIT
LATCH
A0 - A15
RFMODCS/ PLMODCS/
VDIMODCS/
ALE
RD/
WR/
RESET
D0-D7 A0-A7
DATADIR
RESET
RD/
WR/
A0 - A15
RD/
A15 A14 A13
RESETALE
3.3V
CONV
DIR OE
A0
A14
D0 D7
OE/ WE/WR/
SC/
A0 - A7
OEDIR
U6
ADDRESS DECODER 2
1 0
U5
U5
E
E
U4
SRAM
32k x 8
RESET5
RFCS_5 PLCS_5
VDICS_5
ALE_5 RD/_5 WR/_5 RESETS
5 4
3 2 1
0
3.3V
RFINT/ PLINT/ VDIINT/
RFCS.5
ALE5
RD5
WR5
RFINT
VDIMODCS/
PLMODCS/ RFMODCS/
DPRCS/
RFMODCS/ PLMODCS/
UDIMODCS/
RD/
CS/ ALE RD/ WR/ RESIN INT/
A/D0-7
MODEM
A/D0-7
MODEM
A/D0-7
U9
RF
MODEM
U10
PL
U11
VDI
X1
X1
X1
RFRXDAT RFTXDAT RFTXCLK RFRCVDAT RFRCVCLK
11 MHz
CIRCUIT ANALYSIS
DATADIR
CIRCUIT ANALYSISN
Figure 8 - Modem Daughter Board Block Diagram
44 MM101271V1 R1A
CIRCUIT ANALYSIS
6.1 Modems
Each Modem chip interfaces to the 80C323 microprocessor via an 8-bit bi-directional address/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 the Modem interrupt. The Modem converts the data to a 9600 baud synchronous serial data stream.
During receive, the Modem chip receives the 9600 baud synchronous serial data stream and 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 Interface
Because the Modems require a 5V supply, and the microprocessor is on a 3.3V supply, it is 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 be controlled 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 is used 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 logic which sets the direction from microprocessor to Modems (high) most of the time. Only during a read of one of the microprocessors is the direction reversed (low).
6.3 Microprocessor
The 80C323 microprocessor is a 3.3V version of the Dallas Speedy micro, an 80C32 derivative. It operates on a 14.7462 MHz. Clock, which is convenient for generating standard baud rates. It interfaces with the Modems, Code RAM, Dual Port RAM, and Data 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 the rear 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 i nterrupts, INT0/ and INT1/. The first, INT0/, is used for all Modem interrupts. The second, INT1/, is used for i nterrupts from the Dual Port Ram.
Since it is still necessary to distinguish between the three Modem interrupts, RFINT/ and PLINT/ are brought to I/O pins so the microprocessor can easily determine which Modem is interrupting. i.e. If a Modem interrupt occurs, the microprocessor looks at the two pins. If either or both are low, the corresponding interrupts are serviced. If neither is low, the VDI interrupt is serviced.
The 80C323 (U1) uses standard Intel multiplexed address/data bussing. During the first half of the bus cycle, U7 latches the lower 8 bits of address under the control of ALE.
MM101271V1 R1A 45
CIRCUIT ANALYSISN
Address decoder U5 generates the Chip Selects for the three modems and the Dual Port RAM using signals RD/, WR/, A13, A14, and A15.
MEMORY MAP
Device Range Size
Code RAM 0-FFFF 64K
Bytes Dual Port RAM 0-1FFF 8K Bytes Data RAM 8000-FFFF 32K
Bytes RF Modem 2000-2003 4 Bytes PL Modem 4000-4003 4 Bytes VDI Modem 6000-6003 4 Bytes
6.4 Code Memory
Code is stored in 128K byte RAM U2. The microprocessor can then access it via the Address and Data bus using PSEN/.
Code is loaded into U2 from the QUICC microprocessor. During loading, the QUICC holds the 80C323 reset with the RESETIN/ (low) signal. This is required so the 80C323 will not try to access U2 at the same time causing bus contentions. During loading, bus transceivers U12 (address bus) and U13 (data bus) are turned on. They are held inactive at all other times by the same RESETIN/ signal.
Table 9 - Memory Map
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, for instance, Control Channel code could be stored in one half and working channel code in the other. The switch is performed while the 80C323 is held reset, so it is entirely transparent to the 80C32.
When RESETIN/ is high, the bus transceivers U12 and U13 are off and the 80C323 controls the bus.
6.5 Data Memory
Data 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 Ram
Dual Port RAM U3, an IDT70V05 8K byte device, is the communication path between QUICC and 80C323 during normal operation. Either microprocessor can read or write any location in the RAM. Protocols must be established in software to avoid contention. The QUICC can interrupt the 80C323 by writing to Address interrupt 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 a QUICC interrupt on line INTL/.
______. This causes
____, which causes
46 MM101271V1 R1A
CIRCUIT ANALYSIS
The 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 corresponding signals CEL/, R/WL/, OEL/, and INTL/.
6.7 Troubleshooting Aids
Several signals are available on diagnostic connector J3 for troubleshooting purposes. Also probe points are provided for GND, 5V, and 3.3V.
MM101271V1 R1A 47
6.4ROCKWELL MODEM INTERFACE CARD (A3)
7.0 QIUCC Connector
6.2 Dual Port RAM
6.3 Microcontroller
6.4 8-bit Latch
6.5 Address Buffer
CIRCUIT ANALYSIS
6.6 Data Buffer
6.7 Code SRAM
6.8 Data SRAM
6.9 Page Connections
6.10 Address Decoder
6.11 Diagnostic Connector
6.12 3/5 Converter
MM101271V1 R1A 48
6.13 I/O Connector
6.14 RF Modem
6.15 PL Modem
Phone Line Modem
6.16 VDI Modem
Voted Digital Interface Modem
CIRCUIT ANALYSIS
MM101271V1 R1A 49
CIRCUIT ANALYSIS
6.4 ANALOG BOARD (A4)
Analog Board CV101070V1 contains programmable high speed filters, low speed encode and high speed decode. This board includes Simulcast Interface hardware, which eliminates 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 DAC
AD/DA Converter U23 is an 8-bit CMOS data acquisition device with four analog inputs, one analog output and a serial I A1 (Pin 6) and A2 (Pin 7) can be used for programming a hardware address, allowing the use of up to eight devices to be connected to the I this application, these three leads are tied to +5V. Address, control and data to and from the device are transferred serially through the two-line bidirectional I SENSE lead is connected to analog input AIN0 at U23, Pin 1, converted to digital and connected to the I
2
6.5.28-Bit I/O Expander for I2 C Bus
8-Bit I/O Expander U4 consists of a 16-bit two-line quasi-bidirectional port and an I2C­bus interface. The two-line I respectively. These two-line i nputs can be monitored at Test Points TP2 and TP3. The expanded outputs and connections are U4, Pin:
4 (P0) – HS-FILTERSEL0 (Monitored
at TP19)
5 (P1) – HS-FILTERSEL1 (Monitored
at TP24)
6 (P2) – HS-FILTERSEL2 (Monitored
at TP25)
7 (P3) – HSACOCTL1 (Monitored at
TP26
C-bus.
2
C inputs SCL and SDA connect to U4, Pins 22 and 23
13 (P10) - ground
14 (P11) - ground
15 (P12) - ground
16 (P13) – ground
2
C-bus interface. Three address pins A0 (Pin 5),
2
C-bus without additional hardware. In
2
C-Bus. The PWR
8 (P4) – LSCTL (Monitored at TP30) 17 (P14) - ground
9 (P5) - (Monitored at TP29) 18 (P15) – Connects to +5V through
voltage divider network R127, Pin 8
10 (P6) – MODCTL (Monitored at
TP28)
19 (P16) – Connects through voltage
divider network R127, Pin 7 to Pin 5 to U4, Pin 20 (P17)
11 (P7) – LSDATAACC (Monitored
at TP27)
20 (P17) – Connects through voltage
divider network R127, Pin 5 to Pin 7 to U4, Pin 19 (P16)
6.5.3–5 Volt Generation
-5 Volt generation is accomplished through voltage regulator U2. –12 Volts is applied to U2, 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 at
MM101271V1 R1A 50
CIRCUIT ANALYSIS
Test Point TP31 by connecting the negative lead to TP31 and the positive lead to ground (TP32 or TP33).
6.5.4High-Speed Data Transmit Filters
Buffer/follower circuit U6A precludes the quad operational amplifier high-speed data transmit 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 ETSI
4800 Baud Narrow Band ETSI
9600 Baud Narrow Band Switched Capacitor Filter Circuit
The High Speed Data (HSD) filter is an active Gaussian Minimum Shift Keying (GMSK) filter that filters the data transitions to minimize the high-speed-data transmission bandwidth. The frequency response of the HSD filter section is changed by selecting the output of only one filter circuit by 8:1 MUX U7.
6
High-speed data is a 4800 or 9600 bit per second data stream generated by the microcomputer 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 Band
This HSD filter circuit consists of operational amplifier U5B followed by operational amplifier 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 Band
This HSD filter circuit consists of operational amplifier U5C followed by operational amplifier 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 ETSI
This HSD filter circuit consists of operational amplifier U10B followed by operational amplifier 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 ETSI
This HSD filter circuit consists of operational amplifier U510C followed by operational amplifier U10D. The output of U10D, Pin 14 is applied to the input of 8:1 MUX U7, Pin 7 (N04). This HSD amplifier filter output can be monitored at TP7.
6
European Technical Standards Institute
MM101271V1 R1A 51
CIRCUIT ANALYSISN
6.4.4 9600 Baud Narrow Band
This HSD filter circuit consists of switched-capacitor filter circuit U11 required to produce a flat frequency response. This circuit is driven by an external 400 kHz clock on U11, Pin 1. The output on U11, Pin 5 is applied to t he input of 8:1 MUX U7, Pin 12 (N05). This HSD filter circuit output can be monitored at TP8.
6.5.68:1 MUX
Multiplexer circuit U7 is used to select the applicable HSD to be passed on to Dual Digital Potentiometer U8. T he 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 8:1 MUX output COM is on U7, Pin 8.
6.5.7Dual Digital Pot
The output of the MUX circuit connects to the input of Addressable Dual Digital Potentiometer U8, Pin 14 (HO). This device has two independently controlled potentiometers. Only one pot is used in this application. The wiper can be set to one of 256 positions and is controlled by the microprocessor through the I
9) and SDA (Pin 10). The output on Pin 12 (WO) connects to the input of amplifier circuit U6B.
2
C data bus SCL (Pin
6.5.8Inverting Buffer/Amplifier
Amplifier 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 of this circuit can be monitored at TP9.
6.5.9 Analog Switch
Analog Switch U9 is a Single-Pole/Double Throw (SPDT) with one normally closed and one normally open switch. Switching times are less than 175 ns max fortON and less than 145 ns max fortOFF. 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, Pin 1 (D) MOD. This device is controlled by MODCTL on U9, Pin 6 (IN). +5V connects to U9, Pin 5, (VL). +12V connects through Diode D1 to U9, Pin 4 (+V) and –12V connects through Diode D2 to U9, Pin 7 (-V).
6.5.8Clock Generation
Clock generation is accomplished by inverter circuits U32C and U32D and Dual 4-Stage Binary Ripple Counter U3. U32C and 400 kHz crystal Y1 form a 400 kHz oscillator circuit. 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 at TP10. Counter U3 divides the 400 kHz CLK down to produce a 25 kHz CLK. This output can be monitored at TP11. The 400 kHz CLK is further divided down to produce a 3.125 kHz CLK. This output can be monitored at TP12.
52 MM101271V1 R1A
CIRCUIT ANALYSIS
6.5.9Low Speed Data Decoder Filter
The Low Speed Data Decode Filter is used to remove voice-audio (300-3000 Hz) leaving only 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 U15A
6.5.10Low Speed Data Encode Filter
The Low Speed Data Encode filter is used to smooth out transitions of data impressed upon the voice audio. Low-speed data is a 150 bit per second data stream generated by the microcomputer and used to produce subaudible data on the voice audio.
Low-Speed Data is generated by microcomputer U9A t hrough EPLD U27, Pins 81 and 80, Walsh Bit 1 and Walsh Bit 2 respectively. For low-speed data, the two Walsh bits are scaled and summed through analog switch U22. The output of U22, Pin 1 (D) connects through operational amplifier U19A and buffer/follower U19B to the i nput of the low­speed-data encode filter U21. The output of U19B can be monitored at TP22. U21 is an active filter, which uses resistors R82, R90 and R93 with an external 3.125 kHz CLK to produce a low-pass filter. The output of U21 can be monitored at TP20. This output connects to the input of low pass filter U20, Pin14 (IN). This filter
6.6POWER SUPPLY (A5)
MM101271V1 R1A 53
CIRCUIT ANALYSIS
6.7MISCELLANEOUS INFORMATION
6.7.1Serial Port Data Format
The serial ports transfer RS-232 asynchronous serial data at a rate of 19.2k using t he half-duplex operating mode. That is, data flows in only one direction at a time. T he characteristics of the communication link are:
6.7.2Failsoft Data Format
Communication between SitePro’s takes place along the Backup Serial Link (BSL) through J4. The characteristics of the communication link are:
Type: RS-232C Baud Rate: 19.2 kilobaud Start Bits: 1 Stop Bits: 1 Parity: None Data Type: Binary
Level: 0 to 13.8 VDC Mark/Space: 13.8 volts (mark)/0 volts (space) Baud Rate: 19.2 kilobaud/38.4 kilobaud (ES) Start Bits: 1 Data Bits: 8 Stop Bits: 1 Parity: None Data Type: Binary
SitePro’s installed in Enhanced Sites (ES) must use a data rate of 38.4K baud to improve message throughput and alleviate any conflicts due to increased traffic.
6.7.3T1/E1 Interface
In systems using a T1/E1 interface, a T1/E1 multiplexer provides an asynchronous serial interface between the SitePro and the IMC MIM.
6.7.4Phone Port Data Format
The SitePro sends and receives modem data from its telephone port at 9600 baud using the full duplex mode. That is, data flows simultaneously in both directions. Refer to the Rockwell Modem section for a detailed description.
54
MM101271V1 R1A
7.0 INSTALLATION
INSTALLATION
MM101271V1 R1A 55
CONFIGURATION
8.0 CONFIGURATION
56
MM101271V1 R1A
9.0 PROGRAMMING
PROGRAMMING
MM101271V1 R1A 57
TROUBLESHOOTING
10.0TROUBLESHOOTING
58
MM101271V1 R1A
LIGHTNING PROTECTION GROUNDING
11.0LIGHTNING PROTECTION GROUNDING
Maximum lightning protection is achieved when the GETC Lingtning-Protection Grounding Kit (344A4500) is installed. This kit is normally installed at the factory for all trunking 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 will
clear the board mounting screw, is attached to the end stripped back ½-inch on each wire as shown in Figure.
Figure 9 - Lightning-Protection Kit Installation Detail
2. The solderless terminal end of the wires is then attached to the SitePro Controller
Interconnect Board A1 using the lock washers and machine screw as shown in the above 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
GLOSSARY
Controller Board
Modem Daughter
Board
Interconnect Board
Analog Board
Power Supply
Bolt Solderless Terminal to Board.
Rockwell Modem
Interface C ar d
Rockwell Modem
Assembly
Figure 10 - Lightning-Protection Kit Cabinet Installation
4. When the shelf is installed in the rack, use the split bolts to attach the wire ends stripped 1-inch to the cabinet earth-ground bus wire (part of the Cabinet grounding Strap Kit 344A4730) as shown in the split bolt side view in Figure 3.
In order to be effective, the Cabinet Grounding Strap must be strapped to the building and/or earth ground.
NOTE
60 MM101271V1 R1A
12.0GLOSSARY
INSTALLATION
MM101271V1 R1A 61
13.0PARTS LIST
PARTS LIST
SITEPRO SHELF ASSEMBLY
EV101209V1
1 2 3 4
5 6
7 8 9 10 11 12 13 14 15 16
MA101080V1 19A116552P3 FM101081V1 19A702381P60
8 19A701312P6
19A702364P50 8
19A700032P7 FM101231V1 FM101232V1 AG101229V22 AG101229V5 AG101230V1 19A700032P3 19A700034P3 NP101233V1 FM101083V1
C1 and C2
J1 thru J3
J4 thru J5
J6 CON10: sim to Stewart SS-7188S-A-NF. J5 CON10: sim to Stewart SS-7188S-A-NF. J7 19A116659P173CONN PWR 4-R.
SYMBO L
Chassis Assembly. Clamp, Cable. Cover. Screw, Thread Form, TORX, M4 x 8mm.
Flat washer, M4. Screw, Machine, TORX, M4X8mm.
Lock washer, Internal Tooth, M4. Spacer Plate, Shelf Door. Lens keeper, Door. EMI Shielding Gasket, 22 Fingers. EMI Shielding Gasket, 5 Fingers. Lens, EMI Shielding. Lock washer, Internal Tooth, M2.5. Nut, M2.5 X 0.45. Rear Label. Support, Front.
A1 CB101073V1 INTERCONNECT BOARD
PART NUMBER
- - - - CAPACITORS - - - -
470pF, 2KV: sim to Arco MC1808X471KN202.
- - - - JACKS - - - -
DIN 96_ABC-P: sim to AMP 650895-4.
RJ11_MULT: sim Stewart SS-7368H22-NF.
DESCRIPTION
J8 19A116659P101CONN PWR 3-P.
J9 19A116659P105CONN RCPT 6.
MM101271V1 R1A 62
PARTS LIST
SYMBO L
J10 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.
R1 thru R4
U1 thru U29
REP_623_642/7575 Ohms, 1%, 0.63W.
PART NUMBER
- - - - RESISTORS - - - -
- - - - Pi FILTERS - - - -
Capacitor: 100pF, 100WVDC@125º C, +80%/-20%: sim to Tusonix 4700 006.
DESCRIPTION
A2 CB101069V1 CONTROLLER BOARD
- - - - BATTERY - - - -
BT1 Coin: 3V. 165 mAh: Sim to Panasonic Thru-
Hole.
- - - - CAPACITORS - - - ­C1 Tantalum: 1.0µF, 20V ±20%. C2
thru C9?
C10 C11 C12 Tantalum: 1.0µF, 20V ±20%. C13 C14 Ceramic: 470pF, 2kV ±20%. C15
thru C30
?
C31 Ceramic: 470pF, 2kV ±20%.
C39 Tantalum: 1.0µF, 20V ±20%.
Ceramic: 0.1µF, 25V ±10%.
C42 Tantalum: 1.0µF, 20V ±20%.
MM101271V1 R1A 63
PARTS LISTS
SYMBO L
C46 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 82pF
C68 Ceramic: 820pF, 25V±10%.
C74 Tantalum: 1.0µF, 20V ±20%.
C93 Ceramic: 0.001µF, 25V ±10%.
PART NUMBER
DESCRIPTION
C96 and C97
C10
6
C11
1
C11
5
C11
7
D1 thru D4
D5 LED: Green, Thru-hole, RT ANGLE.
Tantalum: 10µF, 16V±20%.
Ceramic: 0.001µF, 25V ±10%.
Ceramic: 0.001µF, 25V ±10%.
Ceramic: 0.033µF, 25V ±10%.
Tantalum: 10µF, 16V±20%.
- - - - DIODES - - - -
LED: Red, Thru-hole, RT ANGLE.
64 MM101271V1 R1A
PARTS LIST
SYMBO L
D6 and D7
D8 LED: Green, Thru-hole, RT ANGLE. D9
and D10
D11 Dual, High-Speed: sim to Philips, BAV99,
D12 LED: Green, thru-hole
D13 thru D17
?
D30 and D31
PART NUMBER
DESCRIPTION
LED: Yellow, sim to Citizen 1206.
LED: Yellow, sim to Citizen 1206.
SOT23.
Dual, High-speed: sim to Philips, BAV99, SOT23.
Schottky, Vf=0.4
L1 39µH ±15%.
R1
R2 thru R4
R5
R6 thru R8
R9 thru R13
R14 and R15
R16 and R17
19A149818P10 3
19A149818P102Metal Film: 1k Ohms ±5%, 0.1W.
19A149818P10 3
19A149818P75 0
19A149818P10 3
Metal Film: 10k Ohms ±5%, 0.1W.
Metal Film: 10k Ohms ±5%, 0.1W.
0 Ohms.
39 Ohms.
Metal Film: 75 Ohms ±5%, 0.1W.
Metal Film: 10k Ohms ±5%, 0.1W.
- - - - JACKS - - - -
- - - - INDUCTOR - - - -
- - - - RESISTORS - - - -
MM101271V1 R1A 65
PARTS LISTS
SYMBO L
R18 R19 19A149818P222Metal Film: 2.2k Ohms ±5%, 0.1W.
R20 39 Ohms R21 R22 49.9 Ohms ±1%. R23 19A149818P331Metal Film: 330 Ohms ±5%, 0.1W.
R24
R25 19A149818P102Metal Film: 1k Ohms ±5%, 0.1W.
R26 R27 R28
and R29
R30 R31 R32
thru R34
R35 19A149818P331Metal Film: 330 Ohms ±5%, 0.1W.
PART NUMBER
19A149818P15 2
19A149818P10 3
DESCRIPTION
Metal Film: 1.5k Ohms ±5%, 0.1W.
Metal Film: 10k Ohms ±5%, 0.1W.
49.9 Ohms ±1%.
R36
R37 R38 10k Ohms ±1% R39 R40
and R41
R42 19A149818P331Metal Film: 330 Ohms ±5%, 0.1W.
R43 0 Ohms R44
R45 0 Ohms R46
R52 and
R53
19A149818P750Metal Film: 75 Ohms ±5%, 0.1W.
49.9 Ohms ±1%.
66 MM101271V1 R1A
PARTS LIST
SYMBO L
R54 19A149818P331Metal Film: 330 Ohms ±5%, 0.1W.
R55
R56 thru R58
R59 19A149818P121Metal Film: 120 Ohms ±5%, 0.1W.
R60 R61
R62 R63 R64 R65 R66
PART NUMBER
19A149818P12 1
19A149818P102Metal Film: 1k Ohms ±5%, 0.1W.
19A149818P12 1
19A149818P12 1
Metal Film: 120 Ohms ±5%, 0.1W.
Metal Film: 120 Ohms ±5%, 0.1W.
Metal Film: 120 Ohms ±5%, 0.1W.
DESCRIPTION
R71 and R72
R73 and R74
R75 3.01k Ohms ±1%.
R80 33k Ohms
R85 10.0k Ohms ±1%.
R86 R87 19A149818P331Metal Film: 330 Ohms ±5%, 0.1W.
R90 10 Meg Ohms ±5%, 1/16W.
R95 470k Ohms ±1%.
R98 200k Ohms
19A149818P121Metal Film: 120 Ohms ±5%, 0.1W.
19A149818P105Metal Film: 1 Meg Ohm ±5%, 0.1W.
MM101271V1 R1A 67
PARTS LISTS
SYMBO L
R11
1
R13
6
R14
0
and R14
1
R14
2
and R14
3
R14
4
R14
5
R14
6
R14
7
R14
8
R14
9
R15
0
R15
1
R15
2
R15
3
PART NUMBER
19A149818P75 0
19A149818P22 2
DESCRIPTION
Metal Film: 75 Ohms ±5%, 0.1W.
Metal Film: 2.2k Ohms ±5%, 0.1W
510
Metal Film: 2.2k Ohms ±5%, 0.1W.
510
3.9k Ohms
100
3.9k Ohms
510
0.015 Ohms ±1%, 0.5W ±1%.
R16
0
R16
1
R16
2
R16
7
68 MM101271V1 R1A
19A149818P100Metal Film: 10 Ohms ±5%, 0.1W
3.9k Ohms
100
5.5k Ohms ±1%, 0.1W
PARTS LIST
SYMBO L
R16
8
R16
9
R17
0
R17
1
R17
2
R17
7
R17
9
R18
1
PART NUMBER
2.0k Ohms ±1%, 0.1W
100
3.9k Ohms
19A149818P472Metal Film: 4.7k Ohms ±5%. 0.1W.
27k Ohms
19A149818P472Metal Film: 4.7k Ohms ±5%. 0.1W.
19A149818P472Metal Film: 4.7k Ohms ±5%. 0.1W.
4.3 Meg Ohms ±5%, 1/16W.
DESCRIPTION
R18
3
RN1 thru RN1
5
S1 PUSHBUTTON, SPST N.O./SPST N.C. S2 DIPSWITCH, 8 position.
TP1 thru TP1
0
T1 and T2
Q1 NPN: Switching: sim to Phillips PMBT3904,
33k Ohms
- - - - RESISTOR NETWORKS - - - -
10k Ohms, BUS8, ±5%, 0.063W.
- - - - SWITCHES - - - -
- - - - TEST POINTS - - - -
SM Test Point Loop – Surface Mount: sim to ADI/ SM-TESTPAD/Comp-CORP/TP-107/1.
- - - - TRANSFORMERS - - - -
1:1, 10/100Mbps: sim to TG110-S05N2.
- - - - TRANSISTORS - - - -
SOT23.
MM101271V1 R1A 69
PARTS LISTS
SYMBO L
Q2 thru
PART NUMBER
DESCRIPTION
FET: Small-Signl, N-Channel: sim to INFINEON, BSP295.
Q4 Q5 MOSFET: N-Channel, 5A, 20V: sim to ON
Semiconductor, MMSF5N02HD.
Q6 and
NPN: Switching: sim to Phillips PMBT3904, SOT23.
Q7 Q8 PNP: sim to Motorola, MMBT3906LT1,
SOT23.
Q9 and
NPN: Switching: sim to Phillips PMBT3904, SOT23.
Q10
- - - - INTEGRATED CIRCUITS - - - -
U1 Single Buffer with 3-State Output: sim to
Fairchild NC7SZ125M5, SOT23-5.
U2 8M x 16 SCRAM, PC100: sim to Micron
MT48LC8M16A2TG-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 to
AMD AM79C874VC, TQFP80.
U6 Octal Buffer, 3.3V: sim to TI 74LVC244ADB,
SSOP20.
U7 8M x 16 SCRAM, PC100: sim to Micron
MT48LC8M16A2TG-8E, TSOP54.
U8 Octal Buffer, 3.3V: sim to TI 74LVC244ADB,
SSOP20.
U9 Microprocessor, 66MHz: sim to Motorola,
XPC860PZP66D4, BGA357.
U10 and U11
1M x 16/2M x 8 Flash, simultaneous Read/Write: sim to AMD, AM29DL163DB90E1, TSOP48.
10/100-TX/FX Ethernet Transceiver: sim to
U12
AMD AM79C874VC, TQFP80. RS232 Transceiver, 5V, 2-TX, 2-RX: sim to
U13
U14
U15
MAXIM, MAX202CSE, SOIC16.. EEPROM, I
2
C, 16k x 8, 3.3V: sim to Atmel,
AT24C128, SOIC8.
2
I
C Bus 8-bit I/O: sim to Philips, PCF8574T,
SOIC16.
U16 Phase-Lock-Loop (PLL): sim to TI,
74HCT4046ADB, SSOP20.
70 MM101271V1 R1A
PARTS LIST
SYMBO L
PART NUMBER
DESCRIPTION
U17 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.
U22 and
HEX Buffer: sim to Philips, 74HC14PW, TSSOP14.
U23 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 I
2
C Bus 8-bit I/O: sim to Philips, PCF8574T,
SOIC16.
U27 144 PIN CPLD, sim to Altera,
EPM3256ATC144, TQFP144.
U28 Quad UART (QUART): sim to
SC28L194A1BE, TQFP80.
U29 HEX Buffer: sim to Philips, 74HCT14PW,
TSSOP14.
U30 RS232 Transceiver, 5V, 4-TX, 5-RX: sim to
MAXIM, MAX213CAI, SSOP28.
U31 Reset Supervisor: sim to Dallas, DS1818R-
10, SOT23.
U32 HEX Buffer: sim to Philips, 74HCT14PW,
TSSOP14.
U33 thru
HEX Open-Collector Output Drivers: sim to Philips, 7406AD, SOIC14.
U35 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 to
Philips, 74F06AD, SOIC14.
U40 555 Timer: sim to National, LMC555CM,
TO263.
- - - - OSCILLATORS - - - -
MM101271V1 R1A 71
PARTS LISTS
SYMBO L
Y1 Crystal: 25MHz CLK ±50ppm, 40%/60% duty,
Y2 Crystal: 29,4912 MHz CLK ±100ppm,
Y3 Crystal: 32.786kHz CLK Y4 Crystal: 11.0592 MHz CLK ±50ppm,
A3 ROA 117
C1 thru C4
C6 RJC 464
C7 RJA 528
C8 RJE 584
C9 RJE 584
C10 thru C15
F1 NGH 241 04/1 Glass-Tube: 1.0 A F2
and F3
R1 and R2
R3 REP 645
R4 and R5
R6 thru R17
R18 thru R21
RJE 584 3168/47
3045/1
4064/1
3168/47
3108/1 RJC 464
3045/1
NGH 241 03/25 Glass-Tube: 0.25A
REP 645 623/62
623/22 REP 625
426/33
REP 625 425/1 Chip: 10k Ohms 5%, 1/8W.
REP 625 424/47
PART NUMBER
3.3V
40%/60% duty, 3.3V.
40%/60% duty, 3.3V.
2247/1
- - - - CAPACITORS - - - -
Tantalum: 47µF ±20%, 16V.
10nF ±10%, 50V.
1nF, ± 5%, 16V.
Tantalum: 47µF 20%, 16V.
Tantalum: 10uF 20%, 10V.
10nF ±10%. 50V.
- - - - FUSE - - - -
- - - - RESISTORS - - - -
620 Ohms ±1%, 0.25W
220ohm 1% 0.25W
Chip: 330k Ohms 5%, 1/8W.
Chip: 4.7k Ohms 5%, 1/8W.
DESCRIPTION
ROCKWELL MODEM INTERFACE CARD
72 MM101271V1 R1A
PARTS LIST
SYMBO L
R22 thru R27
R28 REP 625 425/1 Chip: 10k Ohms 5%, 1/8W. R29 REP 645
R30 REP 645
R31 and R32
R33 REP 625
R34 REP 645
R35 and R36
R37 thru R40
R41 and R42
S1 RMF 356
T1 and T2
REP 625 424/1 Chip: 1k Ohms 5%, 1/8W.
624/24
624/12 REP 645
623/62
423/47
623/24 REP 645
623/12
REP 645 62 0.0 Ohms +50Meg Ohms, 0.25W.
REP 625 425/1 Chip: 10k Ohms 5%, 1/8W.
004/08
REG 135 57/1 Transformer/Telefon
PART NUMBER
2.4k Ohms 1% 0.25W
1.2k Ohms 1%, 0.25W
620 Ohms 1%, 0.25W
Chip: 470 Ohms 5%, 1/8W.
240 Ohms 1%, 0.25W
120 Ohms 1%, 0.25W
- - - - SWITCHES - - - -
COMMUTATOR/DIP-SWITCH
- - - - TRANSFORMERS - - - -
DESCRIPTION
- - - - INTEGRATED CIRCUITS - - - -
U1 RYT 306
2024/C
U2 RYT 306
2019/C
U3 RYT 108
6003/C
U4 RYT 101
6164/1
U5 RYT 109
6073/1
MM101271V1 R1A 73
Dual Mono Flip-Flops: sim to 74HC4538D.
MICROCIRCUIT: sim to 74HC86
MICROCIRCUIT: sim to TLC555ID
Dual Op Ampl: sim to RC4558D
RS232 3+3 Transceivers ±5V: sim to MC145406DW.
- - - - DIODES & TRANSISTORS - - - -
PARTS LISTS
SYMBO L
V1 thru V3
V4 thru V7
V8 thru V10
V11 and V12
V13 and V14
X1 and X2
X3 and X4
X5 RPV 403
X6 and X7
X8 and X9
XF1 thru XF3
4 NTM 201 1079 Set Of Materials/Hardware Kit 6 RNY 101 01/4 KEY4/
C3 1µF ECS-T1CY105R C4 10nF ECU-V1H103KBV C5 1µF ECS-T1CY105R C6 10nF ECU-V1H103KBV
RKZ 433 637/1 LED: 90-Degree, RED.
RKZ 223 01/8 Diode Regulator: 4.7V 5%, .225W.
RYN 121 675/1 NPN Transistor: 60V, 200mA.
RKZ 433 637/1 LED: 90-Degree, RED.
RYN 121 675/1 NPN Transistor: 60V, 200mA.
RNV 403 843/031
RPV 380 10/03 PIN STRIP/.
209/102 RNV 207 03/1 U-LINK/.
RPV 380 10/03 Pin Strip/.
NFN 102 04 Fuse Holder/.
A4 CB101070V1 ANALOG FILTER BOARD
PART NUMBER
- - - - CONTACTS - - - -
Fork contact unit/socket conn. For pwb mounting.
Connector/96 Pol 4 GRD. Pins.
- - - - CAPACITORS - - - -
DESCRIPTION
C10 1nF ECU-V1H102KBV C11 4.7nF ECU-V1H472KBV
74 MM101271V1 R1A
PARTS LIST
SYMBO L
C12 and C13
C14 2.2nF ECU-V1H222KBV C15 10nF ECU-V1H103KBV C16
and C17
C18 1.5nF ECU-V1H152KBV C19
and C20
C21 10nF ECU-V1H103KBV C22 15nF ECU-V1H153KBV C23 22nF ECU-V1E223KBV C24 2.2nF ECU-V1H222KBV C25 15nF ECU-V1H153KBV C26 22nF ECU-V1E223KBV C27 33nF ECU-V1H153KBV C28 10nF ECU-V1H103KBV C29 3.3pF ECU-V1H033CCV C30 0.1µF ECJ-1VB1C104K C31 15nF ECU-V1H153KBV C32 10µF ECS-H1CC106R C33 22uF ECS-T1CD226R C34 10µF ECS-H1CC106R
PART NUMBER
10nF ECU-V1H103KBV
22nF ECU-V1E223KBV
47µF 593D476X9016D2T
DESCRIPTION
C39 3.3pF ECU-V1H033CCV C40 15nF ECU-V1H153KBV C41 10 nF ECU-V1H103KBV C42 47 µF 593D476X9016D2T
C47 thru C52
C53 and C54
MM101271V1 R1A 75
0.1µF ECJ-1VB1C104K
47µF 593D476X9016D2T
PARTS LISTS
SYMBO L
C57 thru C60
C62 and C63
C64 thru C86
C89 thru C91
C93 thru C98
C10
0
thru C10
4
PART NUMBER
47µF 593D476X9016 D2T
NM
0.1µF ECJ-1VB1C104K
0.1µF ECJ-1VB1C104K
0.1µF ECJ-1VB1C104K
0.1µF ECJ-1VB1C104K
DESCRIPTION
C10
6
thru C11
1
C11
3
thru C12
1
C12
3
C12
4
and C12
5
0.1µF ECJ-1VB1C104K
0.1µF ECJ-1VB1C104K
4.7pF C0603C479K5GAC
0.1µF ECJ-1VB1C104K
- - - - DIODES - - - -
76 MM101271V1 R1A
PARTS LIST
SYMBO L
D1 and D2
D5 Dual High Speed: sim to BAL99.
D11 and D12
D15 BAT54LT1
J1 DIN96_ABC_R
K1 and K2
Q1 MMBT3904LT1
PART NUMBER
BAT54LT1
Dual High Speed: sim to BAL99
- - - - JACK - - - -
- - - - RELAYS - - - -
EB2-4.5S
- - - - TRANSISTOR - - - -
DESCRIPTION
- - - - RESISTORS - - - ­R1 124k Ohms R2 SM/RP_EXB-D10C [EXB-D10C/SM] R3 R4 16k Ohms R5 1.21k Ohms R6 5.11k Ohms R7 1k Ohms R8 16k Ohms R9 1.21k Ohms R10 5.11k Ohms R11 1k Ohms R12
and R13
R14 31.6k Ohms R15 0 Ohms R16 150k Ohms R17 100k Ohms R18 1Meg Ohm R19 NM R20 1Meg Ohms
NM
MM101271V1 R1A 77
PARTS LISTS
SYMBO L
R21 0 Ohms R22 100k Ohms R23
and R24
R25 46.4k Ohms R26 0 Ohms R27 100k Ohms R28 11k Ohms R29 1.96k Ohms R30 5.11k Ohms R31 1.1k Ohms R32 11k Ohms R33 1.96k Ohms R34 5.11k Ohms R35 1.1k Ohms R36 470 Ohms R37
and R38
R39 22.1k Ohms R40 20K Ohms R41 22.1k Ohms R42 R43 294k Ohms R44
and R45
R46 10k Ohms R47 10Meg Ohms R48 NM R49 10k Ohms R50 68k Ohms R51 NM R52 100k Ohms R53 10k Ohms R54 0 Ohms R55 23.7k Ohms R56
and R57
R58 47k Ohms
PART NUMBER
NM
1Meg Ohms
22.1k Ohms
NM
DESCRIPTION
78 MM101271V1 R1A
PARTS LIST
SYMBO L
R59 and R60
R61 and R62
R63 20k Ohms R64 NM R65 60.4k Ohms R66 NM R67 1k Ohms R68 4.7k Ohms R69 0 Ohms R70 60.4k Ohms R71 NM R72
thru R74
R75 R76 R77 NM R78
and R79
R80 and R81
R82 10k R83 NM R84 0 Ohms R85 R86 10k Ohms R87 18k Ohms R88 0 Ohms R89 32.4k Ohms R90 15k Ohms R91 82.5k Ohms R92 NM R93 46.4k Ohms R94 NM R95 221k Ohms R96 46.4k Ohms R97 0 Ohms
PART NUMBER
10k Ohms
0 Ohms
22.1k Ohms
10k Ohms
NM
DESCRIPTION
MM101271V1 R1A 79
PARTS LISTS
SYMBO L
R98 82.5k Ohms R99 10k Ohms R10
0
thru R10
2
R10
3
and R10
4
R10
5
thru R10
8
R10
9
and R11
1
R11
2
R11
3
R11
4
R11
5
R11
6
R11
7
R11
8
R11
9
and R12
0
R12
1
R12
2
PART NUMBER
NM
4.7k Ohms
470 Ohms
NM
4.7k Ohms
10 Ohms
0 Ohms
0 Ohms
20k Ohms
39.2k Ohms
DESCRIPTION
80 MM101271V1 R1A
PARTS LIST
SYMBO L
R12
PART NUMBER
51.1K Ohms
DESCRIPTION
3
and R12
4
R12
39.2k Ohms
5
R12
332k Ohms
6
R12
SM/RP_EXB-D10C [EXB-D10C/SM]
7
R12
0 Ohms
8
thru R13
0
R13
10Meg Ohms
1
- - - - TEST POINTS - - - -
TP3
TP-107-01 [T POINT R]
2
And TP3
3
- - - - 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, MC33074D U11 8
th
-Order, Lowpass, Switched-Capacitor
Filters: sim to Maxim, MAX292ESA. U12 : sim to Motorola, LM393D. U13 : sim to U14 : sim to Maxim, MAX294EWE. U15 : sim to Motorola, MC33072D. U16 : sim to Linear Tech, LTC4861S.
MM101271V1 R1A 81
PARTS LISTS
SYMBO L
U17 : sim to Motorola, MC33072D. U18 SPST/SPDT Analog Switches: sim to Maxim,
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,
U23 8-Bit A/D and D/A Converter: sim to Philips,
U24 +5V-Powered, Multichannel RS-232
U25 : sim to Linear Tech, LTC4861S. U26 : sim to Linear Tech, LTC 4891S. U27 Dual Peripheral Drivers: sim to TI,
U28 : sim to Motorola, MC33072D. U29 : sim to U30 : sim to U31 : sim to U32 : sim to U33 : sim to Motorola, LM393D.
Y1 400 kHz: sim to STATEK_CX-3V-SM
A5 POWER SUPPLY
PART NUMBER
DG419DY.
DG419DY.
PCF8591TD.
Drivers/Receivers: sim to Maxim, MAX232AESE.
SN75451BD
- - - - CRYSTAL - - - -
Sim To CONDOR DP1719
DESCRIPTION
A6 EA101227V1 DISPLAY MODULE
FM101082V1 Display Cover AR-
FM101082V1 AG101230V1 Display Lens. FM101082V3 Display Lens Keeper. FM101082V2 Spacer Plate.
A6-A1CB101077V1 Display Board Assembly
82 MM101271V1 R1A
Display Mkg Artwork.
PARTS LIST
SYMBO L
A6-W1CA101222V1 Cable
A7 RYTUZ 921
A8 CB101074V1 MODEM DAUGHTER BOARD
C1 thru C2
C3 thru C27
C28 27pF
J1 QUICC: J2 I/O Connector J3 Diagnostic Connector
R1 thru R3
R4 R5
thru R8
R9 R10 R11 R12 R13 R14 270 Ohms R15
thru R20
PART NUMBER
01/1
DESCRIPTION
ROCKWELL MODEM ASSEMBLY
- - - - CAPACITORS - - - -
10µF
0.1µF
- - - - CONNECTORS - - - -
- - - - RESISTORS - - - -
10k Ohms
10k Ohms
10k Ohms
- - - - INTEGRATED CIRCUITS - - - ­U1 Local Microprocessor: sim to Dallas 80C323. U2 SRAM 64 x 8k: sim to Integrated Circuit
Devices IDT71V124SA.
U3 Dual Port RAM: sim to Integrated Circuit
Devices IDT70V05L55PF.
MM101271V1 R1A 83
PARTS LISTS
SYMBO L
U4 SRAM 64 x 8k: sim to Integrated Circuit
U5 Address Decoder: sim to 74ALVC138ADB. U6 3.3V - 5V Converter: sim to Integrated Circuit
U7 8-Bit Latch: sim to 74LVC373APWOH. U8 U9 RF Modem: sim to Texas Instrument
U10 PL Modem: sim to Texas Instrument
U11 VDI Modem: sim to Texas Instrument
U12 Adder Bus Buffer: sim to Integrated Circuit
U13 Data Bus Buffer: sim to Integrated Circuit
U14 U15 U16 Quad 3-Input NAND Gate: sim to
U17 Quad 2-Input NOR Gate: sim to
U18 Hex Inverter: sim to 74LVC04APWDH. U19 Quad 2-Input NAND Gate: sim to
U20 thru U22
U23 Quad 2-Input NAND Gate: sim to
PART NUMBER
DESCRIPTION
Devices IDT71V124SA.
Devices IDT74FCT.
ROP101688/4C
ROP101688/4C.
ROP101688/4C.
Devices IDT74FCT163245C or A.
Devices IDT74FCT3245APG
74LVC10APWDH.
74LVC02APWDH.
74HC1G00GW. Single Inverter: sim to 74HC1G04GW.
74HC1G00GW.
W1 CA101211V1 Cable: Input To Power Supply. W2 CA101212V1 Cable: Output From Power Supply.
84 MM101271V1 R1A
PARTS LIST
SYMBO L
PART NUMBER
DESCRIPTION
MM101271V1 R1A 85
14.0IC DATA
13.1CONTROLLER BOARD (A2)
U1
Single Buffer with 3-State Output ###### (Fairchild, NC7SZ125M5, SOT23-5)
IC DATA
U2, U7
8M x 16 SDRAM, PC100 ###### (Micron, MT48LC8M16A2TG-8E)
Continued on next page
MM101271V1 R1A 86
Continued from previous page
IC DATA
U3
Silicon Serial Number ###### (DALLAS, DS2401P)
MM101271V1 R1A 87
IC DATA
U4
Clock Buffer ##### (Cypress, CY2305SC-1)
U5, U12
10/100-TX/RX Ethernet Transceiver ##### (AMD, AM79C874VC)
Continued on next page
88 MM101271V1 R1A
Continued from pervious page
U6, U8
Octual Buffer, 3.3V ##### (TI, 74LVC244ADB)
IC DATA
MM101271V1 R1A 89
U9
Microprocessor, 66MHz ###### (Motorola, XPC860PZP66D4, BGA357)
IC DATA
MM101271V1 R1A 90
U10, U11
1M x 16/2M x 8 Flash, Simultaneous Read/Write ###### (AMD, AM29DL163DB90E1)
IC DATA
MM101271V1 R1A 91
IC DATA
U13
RS232 Transceiver, 5V, 2-TX, 2-RX ###### (MAXIM, MAX202CSE)
U14
EEPROM, I2C, 16k x 8, 3.3V ###### (Atmel, AT24C128N, SOIC8)
92 MM101271V1 R1A
U15, U26
I2C Bus 8-Bit I/O ###### (Philips, PCF8574A)
PIN IDENTIFICATION
IC DATA
SYMBOLPIN DESCRIPTION
A0 1 Address Input 0 A1 2 Address Input 1 A2 3 Address Input 2 P0 4 Quasi-bidrectional I/O 0 P1 5 Quasi-bidrectional I/O 1 P2 6 Quasi-bidrectional I/O 2 P3 7 Quasi-bidrectional I/O 3
Vss 8 Supply Ground
P4 9 Quasi-bidrectional I/O 4 P5 10 Quasi-bidrectional I/O 5 P6 11 Quasi-bidrectional I/O 6 P7 12 Quasi-bidrectional I/O 7
INT 13 Interrupt Output (Active LOW) SCL 14 Serial Clock Line SDA 15 Serial Data Line
V
U16
Phase-Lock-Loop (PLL) ###### (TI, 74HCT4046ADB)
DD
16 Supply Voltage
MM101271V1 R1A 93
IC DATA
U17, U20
Single Inverter ###### (Philips, 74HC1G04GW)
U18, U22, U23
HEX Buffer ###### (Philips, 74HC14PW)
94 MM101271V1 R1A
U19
Octal XCVR, BUS HOLD, 3.3V ###### (Philips, 74LVCH245APW)
IC DATA
U21
RS485 Transceiver ###### (TI, 75176BD)
MM101271V1 R1A 95
IC DATA
U24
RS232 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
U27
144 PIN CPLD ###### (ALTERA, EPM3256ATC144)
IC DATA
MM101271V1 R1A 97
IC DATA
U28
QUAD UART (QUART) ###### (Philips, SC28L194A1BE)
98 MM101271V1 R1A
U29, U32
HEX Buffer ###### (Philips, 74HCT14PW)
IC DATA
U30
RS-232 Transceiver, 5V, 4-TX, 5-TX ###### (MAXIM, MAX213CAI)
MM101271V1 R1A 99
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