Table of Contents
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Section 1.0 Introduction.................................................................................................................4
1.1 Scope....................................................................................................................................4
1.2 Equipment Description ........................................................................................................4
1.3 General Specifications .........................................................................................................4
1.3.1 Operating Altitude: .......................................................................................................5
1.3.2 Accuracy: ......................................................................................................................5
1.3.3 Serial Port Altitude Data Resolution: ...........................................................................5
1.3.4 Mechanical Characteristics:..........................................................................................5
1.3.5 Environmental:..............................................................................................................5
1.3.6 Over Range: ..................................................................................................................5
1.4 Parallel Altitude Data Port Specifications: ..........................................................................6
1.5 Serial Port Specifications RS232 (TxD1 and TxD2):..........................................................6
1.6 Serial Port Specifications RS485.........................................................................................7
1.7 Serial Communication Format:............................................................................................7
1.8 Serial Communication Protocol :.........................................................................................8
Section 2.0 Operation ....................................................................................................................9
2.1 General:................................................................................................................................9
2.2 Operating Instructions: ........................................................................................................9
Section 3.0 Installation and Calibration: .....................................................................................10
3.1 Mechanical Installation......................................................................................................10
3.2 Electrical Installation: ........................................................................................................10
3.3 Serial Altitude Data Port Test Equipment: ........................................................................11
3.4 Parallel Altitude Data Port Test Equipment ......................................................................11
Section 4.0 Calibration and Configuration ..................................................................................12
4.1 Calibration Overview:........................................................................................................12
4.2 Required Equipment Span Adjust: ....................................................................................12
4.3 Required Equipment Dynamic Calibration........................................................................13
4.4 Span Adjust Procedure.......................................................................................................14
4.5 Hyper Terminal Set-Up on the IBM Compatible PC: .......................................................15
4.6 Serial Port Software Configuration....................................................................................16
4.7 Dynamic Calibration Adjustment Procedure:....................................................................18
4.8 Configuration and Calibration Command List ..................................................................21
4.9 Error Correction Table.......................................................................................................22
Digitizer / Transponder Interconnections ....................................................................................23
GPS Connection Data ..................................................................................................................28
UPS Aviation Technologies (IIMorrow) .....................................................................................28
Narco AT-50 and AT-50A Installation........................................................................................31
Wiring Harness Diagram Part Number 881404...........................................................................32
Span Adjust Block Diagram ........................................................................................................33
Dynamic Calibration Block Diagram ..........................................................................................34
Temperature vs. Warm-up Time..................................................................................................35
Outline Drawing ..........................................................................................................................36
WARRANTY REGISTRATION ................................................................................................39
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