Controller - Institute of Transportation Engineers

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LCD - Liquid Crystal Display LED - Light Emitting Diode LOGIC - Negative Logic Convention (Ground True) State LSB - Least Significant Byte lsb - Least Significant Bit MB - MegaByte MSB - Most Significant Byte msb - Most Significant Bit m - Milli MCU/MPU/ - Micro Controller Unit, Microprocessor Unit, or Integrated IMP Multiprotocol Processor MIL - Military Specifications MODEM - Modulation/Demodulation Unit Module - A functional unit that plugs into an assembly Motherboard - A printed circuit connector interface board with no active or passive components MOS - Metal-Oxide Semiconductor MOV - Metal-Oxide Varistor MS - Military Standards N - Newton: SI unit of force N.C. - Normally closed contact N.O. - Normally open contact NA - Presently Not Assigned. Cannot be used by the contractor for other purposes NEMA - National Electrical Manufacturer's Association Standard for the ATC – Type 2070 March 29, 2001 108
NETA - National Electrical Testing Association, Inc. n - nano NLSB - Next Least Significant Byte nlsb - Next Least Significant Bit NMSB - Next Most Significant Byte nmsb - Next Most Significant Bit PCB - Printed Circuit Board PDA - Power Distribution Assembly PLA/PAL - Programmable Array Logic Device Power Failure - A Power Failure is said to have occurred when the incoming line voltage falls below 92 +/- 2 VAC for 50 ms. See Power Conditions. Power - Power is said to be restored when the incoming line voltage equals Restoration or exceeds 97 +/- 2 VAC for 50 ms. See Power Conditions. Power - 16.7 ms ( one 60 Hz cycle ) reaction period is allowed to be Conditions included in the 50 ms timing or added to (67 ms duration ). The hysteresis between power failure and power restoration voltage settings shall be a min. of 5 VAC with a threshold drift of no more than 0.2 VAC. ppm - Parts per million PWM - Pulse Width Modulation RAM - Random Access Memory RF - Radio Frequency RMS - Root-Mean-Square ROM - Read Only Memory Device Standard for the ATC – Type 2070 March 29, 2001 109
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A Recommended Standard of the Joint
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Table of Contents 1 FOREWORD.......
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4.4.3 CPU Active Indicator.........
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2 INTRODUCTION 2.1 Overview The Adv
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Type 2070 Controller Unit - Type 20
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3.1.5.3 Cold Rolled Steel Sheet, Ro
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The potentiometer power rating shal
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3.2.13 Wiring, Cabling, and Harness
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Insulation Resistance: 5,000 megohm
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The equipment shall be engineered f
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3.5.1.5 Each PCB connector edge sha
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All circuits, unless otherwise note
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3.7.5.2 The quality control procedu
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The EIA-485 Line Drivers/Receivers
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The 2070-1B CPU shall not draw more
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4.2.4 Transition Board A TRANSITION
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timer34 = access to MC68360's inter
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An Async-Communications Serial Devi
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Note: The inhibit DCD selection has
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4.2.7.2.9.2 Setting Hardware Clock
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4.2.7.4.3 The Error Handler error r
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4.2.7.6.6 OS-9 compliant header fil
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4.3.5.4 One KHz Reference A synchro
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Input scanning shall begin at I0 (b
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Generate the CRC value Generate the
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SCC Transmit Error Count Transmit E
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e - r - S - A one-byte leading edge
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(Type Number = 182) 1 0 1 1 0 1 1 0
Page 57 and 58: MC Timestamp NMSB x x x x x x x x B
Page 59 and 60: '0' - immediately upon command rece
Page 61 and 62: The timeout value shall be in the r
Page 63 and 64: Each character shall be composed of
Page 65 and 66: 4.4.5.8 Cursor positioning shall be
Page 67 and 68: supply compartment from the back of
Page 69 and 70: Less than 0.2% rms, 1% peak to peak
Page 71 and 72: 4.7 Chapter Details TABLE OF CONTEN
Page 73 and 74: Standard for the ATC - Type 2070 Ma
Page 87 and 88: 2. Modulation: Phase coherent frequ
Page 89 and 90: external screws, except where calle
Page 91 and 92: 5.4.2.10 A 22-line minimum HAR 2 Ha
Page 93 and 94: Type 2070N - NEMA Module, Back Cove
Page 105 and 106: 6 GLOSSARY 6.1.1 Terms and Abbrevia
Page 107: EEPROM - Electrically Erasable, Pro
Page 111: VDC - Voltage Direct Current VME -
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