
North Atlantic Industries, Inc.
Discrete Channels ............................................................................................................................................................40
28 I/O Channels total, (12 In, 12 Out, 4 programmable In/Out .........................................................................................40
Input Characteristics:........................................................................................................................................................40
Output Characteristics:.....................................................................................................................................................40
General Characteristics:...................................................................................................................................................40
LVDT (Module L*) –Four Isolated LVDT Measurement Channels (2, 3 or 4 Wire)...............................................................41
S/D (Module S*) –Four Isolated Synchro/Resolver Measurement Channels........................................................................41
D/S (Module 6*) –Three Isolated Digital-to-SYN/RSL Ch, 0.25 VA Power Output ................................................................42
DLV (Module 5*) –Three Isolated DLV Stimulus Channels, LVDT or RVDT Outputs...........................................................43
Encoder (Module E7) –Four (4) Isolated SSI, A-Quad-B Encoder / General Counter..........................................................44
SSI Mode..........................................................................................................................................................................44
Incremental Quadrature (A-QUAD-B) Encoder / Counter Mode.......................................................................................44
General.............................................................................................................................................................................44
DC Power Supply (Module V*) - Isolated ±15V DC/DC converter.......................................................................................45
Input..................................................................................................................................................................................45
Output...............................................................................................................................................................................45
Power Input.......................................................................................................................................................................45
AC Reference (Module W6, W7) –Optional, Isolated, On-Board Reference Supply.............................................................46
Reference (Module W*) –AC Source, Isolated, Programmable............................................................................................47
68C3 ADDRESS CONFIGURATION...................................................................................................................... 48
PRODUCT CONFIGURATION AND MEMORY MAP ............................................................................................ 49
68C3 CARD-LEVEL MODULE CONFIGURATION and MEMORY MAPPING......................................................................50
ARINC 429/575 SIX CHANNEL, TX/RX (MODULE A4) ........................................................................................ 51
Features................................................................................................................................................................................51
ARINC 429/575 Overview .....................................................................................................................................................51
Functional Description...........................................................................................................................................................51
Receive Operation.................................................................................................................................................................52
Transmit Operation................................................................................................................................................................52
Schedule Transmit Commands .............................................................................................................................................53
Message...........................................................................................................................................................................53
Gap...................................................................................................................................................................................53
FixedGap..........................................................................................................................................................................53
Pause ...............................................................................................................................................................................53
Interrupt............................................................................................................................................................................54
Jump.................................................................................................................................................................................54
Stop..................................................................................................................................................................................54
Transient Protection..........................................................................................................................................................54
Built-In-Test ......................................................................................................................................................................54
Loop-Back ........................................................................................................................................................................54
Specifications ........................................................................................................................................................................54
Module Factory Defaults........................................................................................................................................................55
Registers and Delays ............................................................................................................................................................55
Tx (Transmit) Buffer (FIFO)...................................................................................................................................................56
Rx (Receive) Buffer (FIFO)....................................................................................................................................................56
Rx FIFO (Buffer) Threshold...................................................................................................................................................57
Tx FIFO (Buffer) Threshold ...................................................................................................................................................57
Rx FIFO (Buffer) Level (Number of Rx Buffer Words)...........................................................................................................57
Tx FIFO (Buffer) Level (Number of Tx Buffer Words)............................................................................................................57
Channel Control Low.............................................................................................................................................................58
Channel Control High............................................................................................................................................................59
Channel Status......................................................................................................................................................................60
Interrupt Enable.....................................................................................................................................................................61