DATA SHEET

Click here for the SIU32S data sheet

INTRODUCTION

North Atlantic Industries’ (NAI) Sensor Interface Unit (SIU32S) is a rugged base-plate conduction-cooled chassis that leverages and integrates NAI’s Configurable Open Systems Architecture™ (COSA ®) rugged conduction-cooled 3U OpenVPX SBC, multi-function I/O boards and power supply products. The SIU32S provides a compact, high density, processing & graphics capable data distribution system solution for I/O intensive, mission or control systems applications. The SIU32S supports board-level processing and full I/O control and communication over Ethernet. With local processing, MIL-STD-1553, ARINC 429/575, Serial or ARINC 825 CAN bus are also available as primary communications interfaces when the boards are configured as such. PowerPC, Intel® or ARM Single Board Computer (SBC) processors can be added for a complete processing and I/O solution. The SIU32S is designed to support up to two NAI multi-function pre-configurable SBC/multifunction I/O boards, with or without processing, that support a wide variety of interface and communications smart function modules, all fitted/housed in a single rugged multi-board slot SIU system chassis, which is “delivered” pre-integrated and fully tested as a system.

OBJECTIVES

This manual provides the user with basic hardware implementation and information regarding the operation and interface of the SIU32S. Each SIU32S is fitted with either one to two 3U OpenVPX boards and a single mil-standard power supply unit. Additional PSU option for “hold-up” power/time is available.

SCOPE

This manual only covers the operation of the SIU32S as a stand-alone I/O subsystem. This manual does not cover specific details relating to the operation of the specific I/O boards and function module fitted within the SIU32S. Please reference the board specific documentation for details regarding the board level configuration(s).

CONVENTIONS USED IN THIS MANUAL

WARNINGS, CAUTIONS, and NOTES

Note

An operating procedure, practice, or condition, etc., that is essential to emphasize. All numbers are expressed in decimal format unless otherwise noted.

GENERAL SAFETY NOTICES

The following general safety notices supplement the specific warnings and cautions appearing elsewhere in the manual. They are recommended precautions that must be understood and applied during operation and maintenance of the instrument covered herein.

Serious injury may result if personnel fail to observe safety precautions. Dependent on configuration, some modules (e.g. Synchro / Resolver or AC signal sources) can generate output signals with high voltages. Be careful not to contact high-voltage connections when installing, operating or maintaining this instrument.

The SIU32S is delivered as a standalone system with no accessible or serviceable parts.

REPAIR

DO NOT ATTEMPT REPAIR. Under no circumstances should repair of this instrument be attempted. All repairs to this chassis must be accomplished at the factory.

HIGH VOLTAGE

HIGH VOLTAGE may be used in the operation of this equipment.

INPUT POWER ALWAYS ON

Note

The design of the model SIU32S is such that input power is continuously supplied to internal circuits when connected to a main power source. To disconnect the SIU32S from external power, the external power source should first be de-energized. The power input cable can then be disconnected.

Website https://www.naii.com/

SYSTEM SPECIFICATIONS AND DETAILS

Introduction

The model SIU32S is a next generation rugged systems chassis joining the NAI Sensor Interface Unit (SIU) system chassis family pedigree. The SIU32S is configured to support a wide variety of SBC and multifunction I/O boards that can be configured to support a variety of processing, communications and I/O functions that are supported under the NAI Configurable Open Systems Architecture™ (COSA®) product families.

The SIU32S can function either as a centralized or distributed system. It can also be used to supplement existing legacy systems by easily adding sensor data acquisition as well as general I/O and communication interfaces without expensive legacy chassis and backplane redesign. It has been designed with rugged embedded industrial, military and aerospace applications in mind.

Leveraging NAI’s field-proven, unique modular architecture, the SIU32S supports standard 3U OpenVPX board-level compatible boards that can be fitted with a wide selection of different Intelligent I/O, motion simulation/measurement and communications functions such as:

A/D ConverterD/A ConverterI/O TTL/CMOSRTDI/O Discrete
I/O Differential TransceiverSynchro/Resolver LVDT/RVDT MeasurementSynchro/Resolver LVDT/RVDT SimulationStrain GaugeEncoder
Dual-Channel Dual Redundant BC/RT/MT MIL-STD-1553High-Speed Sync/Async RS232/422/423/485ARINC 429/575CAN BusI/O Relay
AC ReferenceEthernet SwitchSSD/FlashCheck w/ NAI's factory or website for latest selection of available functions

This approach provides unprecedented flexibility for supporting existing or new applications where there are specific interfacing requirements.

Significant application benefits include:

  • Independent (pre-processed) I/O functionality targeted to specific data acquisition/control areas
  • Additional capabilities, technology insertion and sensor interfacing to existing fielded applications
  • Minimal integration risk based on current field-proven, deployed technologies

Specifications

The SIU32S is designed to meet the following general product specifications and is provided as a reference. Actual configuration and usage may affect size, weight, and power (SWaP) specifications. Please contact NAI for discerning/defining SWaP considerations regarding specific program configurations. See additional details herein.

General

SIU32S General SWaP Specifications

Input VoltageStandard/Default: DC: 18 to 36 VDC (28 VDC nominal)
Power (Base unit):~10 W (PSU efficiency, at 100W load) @ 28 VDC nominal
Then, add the power calculated for the configuration-specific board’s module(s) power (see separate specific boards and module(s) specifications).
I/O Signal GND reference is isolated from main power source return and chassis.
Power/Heat Dissipation:Conduction Cooled (CC):
~90 watts (maximum) when properly mounted to a cold plate, which must be maintained at a temperature not to exceed 71°C.
Air/Convection Cooled (AC)
Contact/consult with NAI for configuration and power dissipation. SIU Air/Convection version maximum power dissipation is dependent, but not limited to, configuration, power dissipation, air flow, program and other environmental considerations.
NOTE: The total SIU32S power dissipation is dependent on the configuration of the boards and function module types fitted in the SIU32S. Environmental and other operating characteristic variable considerations should be considered.
Temperature, Operating:-40°C to 71°C
Conduction cooled: As measured at primary thermal transfer interface.
Temperature, Storage:-55°C to 105°C
Size:Height: ~4.6” (117 mm) CC / ~4.8” (122 mm) AC (w/additional heat dissipator fin height)
Depth: ~9.5” (241 mm)
Width: ~6.0” (152 mm) CC or ~6.2” (157 mm) AC
Weight:The weight of an SIU32S system is dependent on the configuration. The approximate weight of the SIU32S is based on the selection of the PSU, boards and functional module(s).
The approximate weight of a configured SIU32S is:
~8.8 lbs. unpopulated - Chassis/backplane/rigid flex & connector boards/PSU
(conduction cooled) (includes ~2.2 lbs. for PSU)
~9.1 lbs. unpopulated - Chassis/backplane/rigid flex & connector boards/PSU
(air/convection cooled) (includes ~2.2 lbs. for PSU)
~11.5 lbs. fully populated (conduction cooled) (includes ~1.35 lbs. for each additional fully function module populated board)
~11.8 lbs. fully populated (air/convection cooled) (includes ~1.35 lbs. for each additional fully function module populated board)

UNPACKING AND INSPECTION

Unpacking

The SIU32S packing materials were designed specifically for transport protection of the SIU32S. When receiving the shipment container, inspect packaging for any evidence of physical damage. If damage is evident, it is recommended that the carrier agent is present when opening the shipping container. It is further recommended that all packing material is retained in the event the SIU32S needs to be shipped elsewhere.

System/Chassis Identification

An identification label, indicating part number, unique serial number and Ethernet PHY MACs / default IP address(es) is affixed to the system chassis.

Figure 1. SIU32S Unit Identification Label Location

Label information provided

  • Unit Level Part Number Unit
  • Level Serial Number Unit
  • Level Date Code

Also, typically provided with:

  • Slot/Board configuration(s) as applicable
  • Slot/Board serial numbers and D/C
  • Slot/Board IP address / MAC address (if applicable)

Special labeling requirements are also considered (i.e. UID matrix, customer part number, etc.). Contact factory for special labeling requirements.

Inspection

Inspect the chassis and connectors to ensure that they were not damaged during transit.

MECHANICAL INTERFACE

Mechanical Description

The standard SIU32S is a rugged milled 6061 aerospace grade aluminum alloy stock. Conduction cooled version is expected to be mounted to a thermally conductive surface to maintain the specified temperature. The system thermal management design considerations should ensure that the chassis thermal interface (SIU32S bottom surface) does not exceed 71°C. Mounting holes are provided on the chassis bottom housing flanges (as depicted).

Maximum power and heat dissipation are dependent on the board and function complement chosen. Contact NAI for application guidance. See the reference outline drawing(s) below.

Mounting Requirements

The SIU32S is conduction cooled and must be mounted in accordance with the drawing. The Outline and Installation Drawing (OID) provides recommended hardware, torque, cold-plate flatness and surface finish specifications, and thermal conductivity requirements.

Figure 2. SIU32S Conduction Cooled Outline Dimensions & Mounting Pattern (Reference Only)

Notes:

  1. For reference only.
  2. Unless otherwise specified, dimensions are in inches (mm); tolerances are:
  • 2 PL DEC ±0.01; 3 PL DEC ±0.005
  • FRACT ±1/64 (0.4); ANGLES ±1/2 (12.7)

Figure 3. SIU32S Conduction Cooled w/Fiber Optic Option Outline Dimensions & Mounting Pattern (Reference Only)

Notes:

  1. For reference only.
  2. Unless otherwise specified, dimensions are in inches (mm); tolerances are:
  • 2 PL DEC ±0.01; 3 PL DEC ±0.005
  • FRACT ±1/64 (0.4); ANGLES ±1/2 (12.7)

Chassis (Earth) GND

Chassis ground point threaded insert location is on the connector face (front) of the SIU32S as shown.

Figure 4. SIU32S Outline Dimensions/Chassis GND location

Note:

A Chassis GND braid or equivalent is expected to be secured by the following hardware or equivalent (delivered/installed with the SIU32S assembly):

  • SCREW, SOCKET HEAD CAP, 8-32, ½” LONG, 18-8 SS
  • Lock Washer, #8, 0.174” ID, 0.293” OD, 18-8 SS
  • Flat Washer, #8, 0.172” ID, 0.375” OD, 18-8 SS

Securing information:

  • The chassis is designed/built with a helical insert: NAS1130-08-15 or equivalent (8-32 Helical Insert, 0.246” Length, 18-8 Stainless Steel)
  • Maximum screw/insert hole depth is 0.4”
  • Recommended torque for the SIU32S Chassis GND screw: 15 in-lbs. (170 N-cm)

Finish

Unless otherwise specified, the following standard finish, or equivalent per NAI process requirements applies:

  1. PRE-TREATMENT: CHEMICAL FILM COATING IAW MIL-DTL-5541, TYPE II, CLASS 3, ALL OVER.
  2. PAINT PRIMER COAT: IAW-MIL-PRF-23377, TYPE II, CLASS 2, WITH A 0.9MIL MINIMUM DRY FILM THICKNESS TO EXTERIOR SURFACES SHOWN IN PAINT MASKING FIGURES.
  3. PAINT FINISH COAT: APPLY MEDIUM TEXTURE USING PER MIL-PRF-85285, TYPE I, CLASS 2, SEMI-GLOSS BLACK WITH A DRY FILM THICKNESS OF 0.0008 TO 0.0012 TO EXTERIOR SURFACES.
  4. FINISH NOTES 2 AND 3 OMITTED FROM THERMAL INTERFACE SURFACE INDICATED & FROM ALL HARDWARE.

CONNECTOR DESIGNATIONS, LOCATIONS & DESCRIPTIONS

The Power, I/O Interface and Ethernet connectors are located on the SIU32S front panel housing.

Figure 5. SIU32S (Front Panel Connector Placement)

SIU32S Connector Designation and Description

REF. DES.
KEY
MANUFACTURER / MIL-DTL SPEC. (or Equiv.)
P/N
MATE P/N
J1
N
AMPHENOL
TVP02RF-23-151S(S2AD)
TV06RF-23-151P
J2
A
AMPHENOL
TVP02RF-23-151SA(S2AD)
TV06RF-23-151PA
J3
A
MIL-DTL-D38999 Type
D38999/20FB35PA
D38999/26FB35SA
J4
(Option)
N
AMPHENOL
CF-594011-01S w/MALE MT 12
FIBER FERRULE
CF-594611-01P w/FEMALE MT 12 FIBER FIRRULE
J5
(Option)
AMPHENOL
HD-BNC JACK (75 OHM)
HD-BNC JACK (75 OHM)
J6
(Option)
AMPHENOL
HD-BNC JACK (75 OHM)
HD-BNC JACK (75 OHM)
J7
(Option)
AMPHENOL
HD-BNC JACK (75 OHM)
HD-BNC JACK (75 OHM)
J8
(Option)
AMPHENOL
HD-BNC JACK (75 OHM)
HD-BNC JACK (75 OHM)

CONNECTOR DETAILS AND PINOUTS

Generic pinout. See module I/O section or contact factory regarding any special module I/O configuration.

J3, Primary Power Connector

Primary input power is supported on the SIU32S via the J3 connector. Power input for the SIU32S: 28 VDC (standard, default).

28 VDC Input Connector

Part Number: TVP02RW-11-35PN, (w/ 10,000 pf conn filtering)

Equivalent to MIL-DTL-D38999 Series III and insert arrangement IAW MIL-STD-1560: Shell size 11-35 (Insert 35), “A” key, 13 pins.

Input Mating Connector: D38999/26WB35SA or equivalent

Figure 6. 28 VDC Pin Insert Arrangement, Front View

.28 VDC Pin-out

J3 PinSIU32S Power Input
1, 2, 10, 1128V-PRI
6, 7, 8, 1328V-SEC
3, 4, 5, 1228V-RTN
9Chassis GND
Each pin is rated at 3 A (max.).

I/O Connectors (J1 to J2) and SLOT Designations

Connectors J1 and J2 route all the I/O from the two OpenVPX boards within the SIU32S. The I/O pins from the boards (user defined, and factory configured) are designated from the 3U board slot locations. The Slot-X P1 and P2 connectors of the OpenVPX cards are routed through the backplane to the SIU32S front panel connector rigid-flex assemblies. The specific I/O pin-out information for the J1 and J2 is defined by the configuration of the OpenVPX boards and function modules fitted to the OpenVPX boards.

Unless otherwise specified: MIL-DTL-38999 HD Type III or Equiv. / Electroless Nickel

Jx DesignationSIU32S Connector MFG. P/N (or equivalent)Board #NAI Conn P/N
J1TVP02RF-23-151S(S2AD)Slot-105-0473-COM
J2TVP02RF-23-151SA(S2AD)Slot-205-0468-COM
(J3)(D38999/20FB35PA)[ PSU (Slot-3) ](05-0662-COM)

Figure 7. SIU32S Slot and Connector Association Details

Mating Connector Information

Mating Connector Kit; NAI P/N: SIU32S-CONN-KIT

Available as an optional separate line item. The mating connector kit includes 1 each (or equivalent): MIL-DTL-38999 HD Type III or Equiv.

J1 MateNAI P/N: 05-0480-COM
HD38999 Type III / TV06RF23-151PN / EN, 151-pin, N-Key
J2 MateNAI P/N : 05-0475-COM
HD38999 Type III / TV06RF23-151PA / EN, 151-pin, A-Key
J3 MateNAI P/N : 05-0671-COM
D38999/26FB35SA / OD, 13-pin, A-Key
J4 Mate
(Option)
NAI P/N : 05-0529-COM
CONN, MT38999, CIRCULAR, FIBER OPTIC, 11-01, N-Key
J5 - J8 Mate
(Option)
NAI P/N : 07-0148
Cable Assembly, BNC Plug to HD-BNC Plug, 75 OHM, Belden 4855R, 78.7”
EN: Electroless Nickel; OD: Olive drab, Cadmium plated

POWER-UP AND BASIC OPERATIONS

Panel LEDs & Functions

Front Panel Power & Status LED Indicators

Figure 8. SIU32S Status LEDs Location

SIU32S Status LEDs Function

LEDSTATUS / FUNCTION
ILLUMINATEDEXTINGUISHED
POWER GRN:Blinking: Initializing Steady On: Power-On/ReadyPower-off
*STATUS RED:Module BIT (Attention required)No Module BIT Attention Required

*Status LED operations: Unless otherwise specified, default Status LED operations is controlled by the Slot-1 SBC/Root Complex card over the internal I2C communications link and functionally defined by the customer applied software application (the register is 0x38).

Elapsed Time Counter (ETC)

Integrated within the SIU32S backplane is an Elapsed Time Counter (ETC) IC, which records the accumulated time that the elapsed time recorder’s Event pin has been held high (in 250 ms increments). The ETC is stored on the chip from registers 0x0A-0x0D and read by the Slot-1 SBC/Root Complex card over the internal I2C communications link (the register is 0x6B).

Basic Operations

The SIU32S is delivered as a tested unit. All pins and operation have been verified. It is recommended that Power and Ethernet connections be made to verify operation of the boards fitted within the SIU32S by making use of NAI’s Embedded Soft Panel based GUI sample application that can be utilized as a board level “exercising” tool (if the SIU32S card configuration supports). The example process below describes the use of NAI’s Ethernet communications software tool.

After applying appropriate power to the SIU32S, connect a host computer (laptop or similar running Windows or Linux), to the appropriate Ethernet enabled/configured board (configured/populated in slot 1) Port A or Port B. The selection of Ethernet Port A or B is dependent on Slot-1 OpenVPX board configuration.

Note

Ethernet port assignments, MAC address, and factory default IP address are indicated on the chassis label.

QUALIFICATION

The SIU32S has been designed to meet the following general specifications. Cooling type, size, weight, power and environmental characteristics may affect the program requirements and the specifications as applied. Contact factory for the SIU32S Qualification Test status.

Environmental

Environmental Qualification Testing Specifications

*Environmental MIL-STD-810 (1) (unless otherwise specified)
No.DescriptionProcedureCyclesTableFigureComments
514Random VibeMethod 514.6, 0.1g2/Hz from 100 to 1K Hz., -3dB octave 5-100 Hz and -6dB 1K-2K Hz,(operational)
514Sinusoidal VibeTBD
501Temp (High)33 periods (@ 4 hrs. ea.) within 24 hrs. cycle at 71 ºC baseplate
502Temp (Low)13 periods (@ 4 hrs. ea.) within 24 hrs. cycle at -40 ºC baseplate
503Temp (Shock)33 x 1 hr. each hot & cold cycle
507HumidityII10507.5-7507.5-IXCyclic high humidity (Cycle B2)
500Altitude (50K)II1n/an/a10m/s to 50,000ft for 1 hr.
513AccelerationII1513.6-IIn/aCarrier-based Aircraft (18g's max)
516Shock - OperatingI3516.6-In/a40g's, 1 min each x 6 axis
516Shock - CrashV3516.6-In/a75g's, 1 min each x 6 axis
*Ingress Protection IEC 60529 (*1, 2)
No.DescriptionProcedureCyclesTableFigureComments
IP54Dust Protection(other - pending characterization /contact factory)
IP54Water Splashing(other - pending characterization /contact factory)
IP65Dust Tight(other - pending characterization /contact factory)
IP65Water Jets(other - pending characterization /contact factory)

EMI/EMC Specifications

EMI/EMC Qualification Testing Specifications

*EMC / MIL-STD-461 (*1, 2) (unless otherwise specified)
MIL-STD-461FMethod/Curve/ProcedureComments
CE102Conducted, Emissions, Power Leads, 10K - 10M Hz
CS101Conducted, Susceptibility, Power Leads, 30 - 150K Hz
CS106Conducted, Susceptibility, Power Leads
CS114Conducted, Susceptibility, Power Leads, 10K - 10M Hz
CS115Conducted, Susceptibility, Bulk Injection
CS116Conducted, Susceptibility, SIN Transient 10K - 100M Hz
RE101Radiated, Emissions, Magnetic Field, 30 - 100K Hz
RE102Radiated, Emissions, Electric Field, 10K - 1.25G Hz
RS101Radiated, Susceptibility, Magnetic Field, 30 - 100K Hz
RS103Radiated, Susceptibility, Electric Field, 2M - 18G Hz

Notes:

*1 - Designed to meet / Generic Test Reports Available

*2 - Utilizing proper shielded cables and system grounding practices

HEAT DISSIPATION

The SIU32S is capable of dissipating up to a total of 90 Watts when properly mounted. Generally, the conduction cooled version thermal interface must be maintained at a temperature not to exceed 71°C. Other operating and environmental factors and variable must be considered when specifying for a higher-level system platform integration. The total SIU32S power dissipation is dependent on the configuration of the OpenVPX boards and power supply fitted in the SIU32S.

RELIABILITY

The reliability of the SIU32S is dependent on the configuration of the OpenVPX boards and power supply fitted within it. The Mean Time between Failures is for the SIU32S configured with chassis, backplane, EMI Filter and connectors.

MTBF

The Mean Time between Failures is configuration, environment, and temperature dependent. Please contact factory regarding calculations based on the specific configuration and program requirements.

SIGNAL PIN-OUTS

The following pinout tables provide a general use guideline AS AN EXAMPLE, ONLY. Pinout routing will be dependent on card type/configuration for optimal I/O usage. Consult NAI factory for assistance in determining specific configuration signal definitions as applicable.

Pin-Out / General / I/O Connector (Slot 1)

The following pinout is an example of a SIU32S Slot-1 populated with a 68INT6-N SBC fitted with two CM5, 2-Channel Dual-Redundant MIL-STD- 1553 & 8-Channel ARINC 429/575 function module and a DT1, 24-Channel discrete input/output function module.

J1 MIL Connector68INT6-N (as Configured)MOD-1 / CM5MOD-2 / DT1Signal Description
1ETH2-TP2P10/100/1000BASE-T, ± 2.5V typ. (over twisted pair)
2ETH2-TP2N10/100/1000BASE-T, ± 2.5V typ. (over twisted pair)
3ETH2-TP3P10/100/1000BASE-T, ± 2.5V typ. (over twisted pair)
4ETH2-TP3N10/100/1000BASE-T, ± 2.5V typ. (over twisted pair)
7MOD2_DATIO06DT-IO-GNDDiscrete I/O, 0-60Vdc, programmable Input/Output
8MOD2_DATIO11VCC2 (7-12)Discrete I/O, 0-60Vdc, programmable Input/Output
9MOD2_DATIO 12DT-IO-GNDDiscrete I/O, 0-60Vdc, programmable Input/Output
10USB1-SSRXPUSB1
11USB1-SSRXNUSB1
12MOD2_DATIO 04IO-CH04Discrete I/O, 0-60Vdc, programmable Input/Output
13MOD2_DATIO03IO-CH03Discrete I/O, 0-60Vdc, programmable Input/Output
14TTL_CH1TTL
15TTL_CH2TTL
16MOD2_DATIO 05VCC1 (1-6)Discrete I/O, 0-60Vdc, programmable Input/Output
17+5V-USB2+5v for USB2
18GDISCRETE1GDiscrete1
19GND
22TTL_CH4USB1
23TTL_CH3TTL
24MOD2_DATIO 16IO-CH16Discrete I/O, 0-60Vdc, programmable Input/Output
25MOD2_DATIO15IO-CH15Discrete I/O, 0-60Vdc, programmable Input/Output
28GND
31MOD1_DATIO 17AR429-A-CH042 CH. Dual-redundant MIL-STD-1553 & 8 Channel ARINC429/575
32MOD1_DATIO 18AR429-B-CH042 CH. Dual-redundant MIL-STD-1553 & 8 Channel ARINC429/575
33+5V-USB1+5v for USB1
34GND
35MOD2_DATIO28IO-CH12Discrete I/O, 0-60Vdc, programmable Input/Output
36MOD2_DATIO 27IO-CH11Discrete I/O, 0-60Vdc, programmable Input/Output
40MOD2_DATIO 31IO-CH23Discrete I/O, 0-60Vdc, programmable Input/Output
41MOD2_DATIO23VCC4 (19-24)Discrete I/O, 0-60Vdc, programmable Input/Output
42MOD2_DATIO 24DT-IO-GNDDiscrete I/O, 0-60Vdc, programmable Input/Output
43MOD1_DATIO 21AR429-A-CH062 CH. Dual-redundant MIL-STD-1553 & 8 Channel ARINC429/575
44MOD1_DATIO 22AR429-B-CH062 CH. Dual-redundant MIL-STD-1553 & 8 Channel ARINC429/575
45MOD2_DATIO 18DT-IO-GNDDiscrete I/O, 0-60Vdc, programmable Input/Output
46MOD2_DATIO 17VCC3 (13-18)Discrete I/O, 0-60Vdc, programmable Input/Output
47MOD2_DATIO 19IO-CH19Discrete I/O, 0-60Vdc, programmable Input/Output
48MOD2_DATIO20IO-CH20Discrete I/O, 0-60Vdc, programmable Input/Output
52MOD2_DATIO32IO-CH24Discrete I/O, 0-60Vdc, programmable Input/Output
53MOD1_DATIO 02BUSAN-CH12 CH. Dual-redundant MIL-STD-1553 & 8 Channel ARINC429/575
54MOD1_DATIO 01BUSAP-CH12 CH. Dual-redundant MIL-STD-1553 & 8 Channel ARINC429/575
55GND
56DDP-B1-DNVideo DisplayPort (DDI) + HDMI
57DDP-B1-DPVideo DisplayPort (DDI) + HDMI
58USB2NUSB2
59USB2PUSB2
60MOD2_DATIO26IO-CH06Discrete I/O, 0-60Vdc, programmable Input/Output
61MOD2_DATIO 25IO-CH05Discrete I/O, 0-60Vdc, programmable Input/Output
63GND
64VID-PWRVideo DisplayPort (DDI) + HDMI
65HDMI-HPDVideo DisplayPort (DDI) + HDMI
67GND
68DDP-B3-DNVideo DisplayPort (DDI) + HDMI
69DDP-B3-DPVideo DisplayPort (DDI) + HDMI
70USB1-SSTXNUSB1
71USB1-SSTXPUSB1
72MOD2_DATIO13IO-CH13Discrete I/O, 0-60Vdc, programmable Input/Output
73MOD2_DATIO09IO-CH09Discrete I/O, 0-60Vdc, programmable Input/Output
74MOD2_DATIO 10IO-CH10Discrete I/O, 0-60Vdc, programmable Input/Output
81VPX-SATA1-TXPSATA
82VPX-SATA1-TXNSATA
85MOD2_DATIO 14IO-CH14Discrete I/O, 0-60Vdc, programmable Input/Output
88SER-TXD0Transmit for Serial Channel 0
89SER-RXD0Receive for Serial Channel 0
90SER-TXD1Transmit for Serial Channel 1
91SER-RXD1Receive for Serial Channel 1
92GND
94MOD1_DATIO 11CH1-STANDARD/BNP12 CH. Dual-redundant MIL-STD-1553 & 8 Channel ARINC429/575
95USB1NUSB1
96USB1PUSB1
97MOD2_DATIO21IO-CH21Discrete I/O, 0-60Vdc, programmable Input/Output
98MOD2_DATIO 22IO-CH22Discrete I/O, 0-60Vdc, programmable Input/Output
100GND
103MOD1_DATIO 08BUSAN-CH22 CH. Dual-redundant MIL-STD-1553 & 8 Channel ARINC429/575
104MOD1_DATIO 07BUSAP-CH22 CH. Dual-redundant MIL-STD-1553 & 8 Channel ARINC429/575
105MOD2_DATIO02IO-CH02Discrete I/O, 0-60Vdc, programmable Input/Output
106MOD2_DATIO 01IO-CH01Discrete I/O, 0-60Vdc, programmable Input/Output
107MOD1_DATIO 12CH1-MODE0/BNN12 CH. Dual-redundant MIL-STD-1553 & 8 Channel ARINC429/575
110MOD1_DATIO 04BUSBN-CH12 CH. Dual-redundant MIL-STD-1553 & 8 Channel ARINC429/575
111MOD1_DATIO 03BUSBP-CH12 CH. Dual-redundant MIL-STD-1553 & 8 Channel ARINC429/575
112MOD1_DATIO 15AR429-A-CH022 CH. Dual-redundant MIL-STD-1553 & 8 Channel ARINC429/575
113MOD1_DATIO 16AR429-B-CH022 CH. Dual-redundant MIL-STD-1553 & 8 Channel ARINC429/575
115MOD2_DATIO 29IO-CH17Discrete I/O, 0-60Vdc, programmable Input/Output
116MOD2_DATIO30IO-CH18Discrete I/O, 0-60Vdc, programmable Input/Output
118MOD1_DATIO 20AR429-B-CH052 CH. Dual-redundant MIL-STD-1553 & 8 Channel ARINC429/575
119MOD1_DATIO 19AR429-A-CH052 CH. Dual-redundant MIL-STD-1553 & 8 Channel ARINC429/575
120ETH2-TP0N10/100/1000BASE-T, ± 2.5V typ. (over twisted pair)
121ETH2-TP0P10/100/1000BASE-T, ± 2.5V typ. (over twisted pair)
122MOD1_DATIO 09BUSBP-CH22 CH. Dual-redundant MIL-STD-1553 & 8 Channel ARINC429/575
123MOD1_DATIO 10BUSBN-CH22 CH. Dual-redundant MIL-STD-1553 & 8 Channel ARINC429/575
124MOD1_DATIO 05CH1-RT-ADDR2/ANP12 CH. Dual-redundant MIL-STD-1553 & 8 Channel ARINC429/575
125MOD1_DATIO 06CH1-RT-ADDR3/ANN12 CH. Dual-redundant MIL-STD-1553 & 8 Channel ARINC429/575
126MRSTnMRST
127RTC-STDBYRTC Standby
129MOD1_DATIO 24AR429-B-CH082 CH. Dual-redundant MIL-STD-1553 & 8 Channel ARINC429/575
130MOD1_DATIO 23AR429-A-CH082 CH. Dual-redundant MIL-STD-1553 & 8 Channel ARINC429/575
133MOD1_DATIO 13AR429-A-CH012 CH. Dual-redundant MIL-STD-1553 & 8 Channel ARINC429/575
134MOD1_DATIO 14AR429-B-CH012 CH. Dual-redundant MIL-STD-1553 & 8 Channel ARINC429/575
135MOD2_DATIO 07IO-CH07Discrete I/O, 0-60Vdc, programmable Input/Output
136GND
137GND
138HDMI-SCL-AUXPVideo DisplayPort (DDI) + HDMI
139HDMI-SDA-AUXNVideo DisplayPort (DDI) + HDMI
140GND
141VPX-SATA1-RXNSATA
142VPX-SATA1-RXPSATA
143MOD2_DATIO08IO-CH08Discrete I/O, 0-60Vdc, programmable Input/Output
144SER-TXD2SER-TXD Serial Channel 2 RS-232 signal, (+/-12V) typ.
145SER-RXD2SER-RXD Serial Channel 2 RS-232 signal, (+/-12V) typ.
146ETH2-TP1N10/100/1000BASE-T, ± 2.5V typ. (over twisted pair)
147ETH2-TP1P10/100/1000BASE-T, ± 2.5V typ. (over twisted pair)
148DDP-B2-DPVideo DisplayPort (DDI) + HDMI
149DDP-B2-DNVideo DisplayPort (DDI) + HDMI
150DDP-B0-DPVideo DisplayPort (DDI) + HDMI
151DDP-B0-DNVideo DisplayPort (DDI) + HDMI
KX-S1-INN10GBase-KR
KX-S1-INP10GBase-KR
KX-S1-OUTN10GBase-KR
KX-S1-OUTP10GBase-KR
KX-S3-INN10GBase-KR
KX-S3-INP10GBase-KR
KX-S3-OUTN10GBase-KR
KX-S3-OUTP10GBase-KR
P1-SYSCONnSYSCON
n/c
n/c
n/c
n/c
n/c
n/c
n/c
n/c
n/c
n/c
n/c
n/c
n/c
n/c
n/c
n/c
n/c
n/c
n/c
n/c
n/c
n/c
n/c
n/c
n/c
n/c
n/c
n/c
n/c
n/c
n/c
n/c

Pin-Out / General / I/O Connector (Slot 2)

The following pinout is an example of a SIU32S Slot-2 populated with a 68G5P. Please contact NAI for assistance/consult in generating a configuration specific pinout.

J2 MIL Connector68G5P (as Configured)MOD-1 / DA1MOD-2 / FM9MOD-3 / TN1Signal Description
7GND Reference (signal/system GND)
16MOD1-DATIO09OUT_CH
12 Ch. ±10 VDC or ± 25 mA / Ch.17MOD1-DATIO10OUT_CH05-
12 Ch. ±10 VDC or ± 25 mA / Ch.19
GND Reference (signal/system GND)24MOD1-DATIO13OUT_CH
12 Ch. ±10 VDC or ± 25 mA / Ch.25MOD1-DATIO14OUT_CH07-
12 Ch. ±10 VDC or ± 25 mA / Ch.26
GND Reference (signal/system GND)27MOD1-DATIO27EXT-REF+
12 Ch. ±10 VDC or ± 25 mA / Ch.28MOD1-DATIO28EXT-REF-
12 Ch. ±10 VDC or ± 25 mA / Ch.29MOD1-DATIO23OUT_CH
12 Ch. ±10 VDC or ± 25 mA / Ch.30MOD1-DATIO24OUT_CH12-
12 Ch. ±10 VDC or ± 25 mA / Ch.35MOD1-DATIO21OUT_CH
12 Ch. ±10 VDC or ± 25 mA / Ch.36MOD1-DATIO22OUT_CH11-
12 Ch. ±10 VDC or ± 25 mA / Ch.38MOD1-DATIO19OUT_CH
12 Ch. ±10 VDC or ± 25 mA / Ch.39MOD1-DATIO20OUT_CH10-
12 Ch. ±10 VDC or ± 25 mA / Ch.42(N/A, SER-GND)
N/A (RS232 Debug, if configured)43MOD1-DATIO11OUT_CH
12 Ch. ±10 VDC or ± 25 mA / Ch.44MOD1-DATIO12OUT_CH06-
12 Ch. ±10 VDC or ± 25 mA / Ch.45MOD3-DATIO28
TSN-ETH4-TP1-N/C Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point (N/46MOD3-DATIO27
TSN-ETH4-TP1+N/C Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point (N/47
GND Reference (signal/system GND)48MOD1-DATIO29EXT-SYNC+
12 Ch. ±10 VDC or ± 25 mA / Ch.49MOD1-DATIO30EXT-SYNC-
12 Ch. ±10 VDC or ± 25 mA / Ch.51MOD1-DATIO15OUT_CH
12 Ch. ±10 VDC or ± 25 mA / Ch.52MOD1-DATIO16OUT_CH08-
12 Ch. ±10 VDC or ± 25 mA / Ch.54(N/A, SER-TXD)
N/A (RS232 Debug, if configured)55(N/A, SER-RXD)
N/A (RS232 Debug, if configured)56MOD1-DATIO03OUT_CH
12 Ch. ±10 VDC or ± 25 mA / Ch.57MOD1-DATIO04OUT_CH02-
12 Ch. ±10 VDC or ± 25 mA / Ch.58MOD3-DATIO32
TSN-ETH4-TP3-N/C Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point (N/59MOD3-DATIO31
TSN-ETH4-TP3+N/C Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point (N/60MOD1-DATIO25
12 Ch. ±10 VDC or ± 25 mA / Ch.61MOD1-DATIO26
12 Ch. ±10 VDC or ± 25 mA / Ch.63MOD1-DATIO07OUT_CH
12 Ch. ±10 VDC or ± 25 mA / Ch.63
N/C64MOD1-DATIO08OUT_CH04-
12 Ch. ±10 VDC or ± 25 mA / Ch.67
GND Reference (signal/system GND)70MOD3-DATIO26
TSN-ETH4-TP0-N/C Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point (N/71MOD3-DATIO25
TSN-ETH4-TP0+N/C Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point (N/74
GND Reference (signal/system GND)75MOD2-DATIO31FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC76MOD2-DATIO32FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC77
N/C78MOD2-DATIO09FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC79MOD2-DATIO10FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC83MOD3-DATIO29
TSN-ETH4-TP2+N/C Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point (N/84MOD3-DATIO30
TSN-ETH4-TP2-N/C Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point (N/85MOD1-DATIO17OUT_CH
12 Ch. ±10 VDC or ± 25 mA / Ch.86MOD1-DATIO18OUT_CH09-
12 Ch. ±10 VDC or ± 25 mA / Ch.87MOD2-DATIO27FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC88MOD2-DATIO28FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC90MOD2-DATIO03FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC91MOD2-DATIO04FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC92MOD2-DATIO01FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC93MOD2-DATIO02FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC95MOD3-DATIO20
TSN-ETH3-TP1-N/C Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point (N/96MOD3-DATIO19
TSN-ETH3-TP1+N/C Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point (N/98MOD2-DATIO23FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC99MOD2-DATIO24FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC100MOD2-DATIO15FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC101MOD2-DATIO16FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC102MOD2-DATIO07FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC103MOD2-DATIO08FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC104MOD2-DATIO05FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC105MOD2-DATIO06FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC106MOD3-DATIO14
TSN-ETH2-TP2-Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point107MOD3-DATIO13
TSN-ETH2-TP2+Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point108MOD3-DATIO24
TSN-ETH3-TP3-N/C Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point (N/109MOD3-DATIO23
TSN-ETH3-TP3+N/C Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point (N/110MOD1-DATIO05OUT_CH
12 Ch. ±10 VDC or ± 25 mA / Ch.111MOD1-DATIO06OUT_CH03-
12 Ch. ±10 VDC or ± 25 mA / Ch.112MOD2-DATIO19FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC113MOD2-DATIO20FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC114MOD2-DATIO11FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC115MOD2-DATIO12FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC118MOD3-DATIO09
TSN-ETH2-TP0+Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point119MOD3-DATIO10
TSN-ETH2-TP0-Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point120MOD3-DATIO18
TSN-ETH3-TP0-N/C Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point (N/121MOD3-DATIO17
TSN-ETH3-TP0+N/C Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point (N/123MOD1-DATIO01OUT_CH
12 Ch. ±10 VDC or ± 25 mA / Ch.124MOD1-DATIO02OUT_CH01-
12 Ch. ±10 VDC or ± 25 mA / Ch.125MOD2-DATIO21FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC126MOD2-DATIO22FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC127MOD2-DATIO13FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC128MOD2-DATIO14FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC129MOD3-DATIO15
TSN-ETH2-TP3+Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point130MOD3-DATIO16
TSN-ETH2-TP3-Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point131MOD3-DATIO21
TSN-ETH3-TP2+N/C Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point (N/132MOD3-DATIO22
TSN-ETH3-TP2-N/C Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point (N/134MOD2-DATIO29FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC135MOD2-DATIO30FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC137MOD2-DATIO17FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC138MOD2-DATIO18FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC139MOD3-DATIO11
TSN-ETH2-TP1+Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point140MOD3-DATIO12
TSN-ETH2-TP1-Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point141MOD3-DATIO03
TSN-ETH1-TP1+Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point142MOD3-DATIO04
TSN-ETH1-TP1-Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point143MOD2-DATIO25FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC144MOD2-DATIO26FM9
n/c FM9 SATA Solid State Drive (SSD) Module; 1.92 TB TLC146MOD3-DATIO06
TSN-ETH1-TP2-Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point147MOD3-DATIO05
TSN-ETH1-TP2+Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point148MOD3-DATIO07
TSN-ETH1-TP3+Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point149MOD3-DATIO08
TSN-ETH1-TP3-Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point150MOD3-DATIO01
TSN-ETH1-TP0+Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point151MOD3-DATIO02
TSN-ETH1-TP0-Single Channel, Dual-Redundant Ports, TSN, IEEE 802.1AS, End Point(N/A, ETH, if configured)
N/A(N/A, ETH, if configured)
N/A(N/A, ETH, if configured)
N/A(N/A, ETH, if configured)
N/A(N/A, ETH, if configured)
N/A(N/A, ETH, if configured)
N/A(N/A, ETH, if configured)
N/A(N/A, ETH, if configured)
N/A(N/A, ETH, if configured)
N/A(N/A, ETH, if configured)
N/A(N/A, ETH, if configured)
N/A(N/A, ETH, if configured)
N/A(N/A, ETH, if configured)
N/A(N/A, ETH, if configured)
N/A(N/A, ETH, if configured)
N/A(N/A, ETH, if configured)
N/AMOD1-DATIO31
12 Ch. ±10 VDC or ± 25 mA / Ch.MOD1-DATIO32
12 Ch. ±10 VDC or ± 25 mA / Ch.MOD1-DATIO33
N/CMOD1-DATIO34
N/CMOD1-DATIO35
N/CMOD1-DATIO36
N/CMOD1-DATIO37
N/CMOD1-DATIO38
N/CMOD1-DATIO39
N/CMOD1-DATIO40
N/CN/C (+5V-USB-)
N/CN/C (ETH1-RXN)
N/CN/C (ETH1-RXP)
N/CN/C (ETH1-TXN)
N/CN/C (ETH1-TXP)
N/CN/C (ETH2-RXN)
N/CN/C (ETH2-RXP)
N/CN/C (ETH2-TXN)
N/CN/C (ETH2-TXP)
N/CN/C (-USB-DM)
N/CN/C (-USB-DP)
N/CN/C (USB-GND-)
N/C
N/C
N/C
N/C
(N/A)
(N/A)
N/C
N/C

General System Functions

PS-ON/OFF#

SIU32S PSU is strapped to be always “ON”. The unit will power-on if external +28V power is applied.

SYSRST#

[GND] or Logic-level “Low” (referenced to internal System GND of the SIU32S) initiates/applies an active low assertion to the OpenVPX SYSRST# signal on the cards. Applied and once released, this will effectively introduce a root ‘system/card’ reset. SYSRST# signal is typically accessed from the SLOT-1 card, J1 MIL-connector.

Note

SYSRST# function is dependent on slot 1 card type/configuration; SYSRST# is typically routed to the “MRSTn” reset input of the SBC (root-complex) /Slot-1 card. If/as applicable, the card issues the RSTn signal on the backplane to all other “end-point” cards within the chassis when SYSRST# is asserted.

Note

The +28VDC power return, system signal ground, and chassis ground are electrically isolated from each other by a minimum of 1 MΩ.

PART NUMBER DESIGNATION

Standard Product = SIU32S-XXXXX

XXXXX = NAI/Factory assigned unique configuration identifier

Standard Product = SIU32S-XXXXX

Chassis FamilySIU32S
Chassis VersionXXXXX
- Standard 3U OpenVPX 2-slot card version (plus dedicated PSU slot). - Pre-Configured Card, Function, Slot Designation and PSU Definitions*. - Unique product specific configuration code assignment / identifier. Contact factory for other than standard version**.
_Specifications are subject to change without notice._

NOTES:

*Factory assigned X-digit code will reference the complete SIU configuration information in the NAI Master Code List (MCL) or Part Number Configurator, as assigned and documented at the factory.

SIU mating connector kit part number:

OpenVPX Systems; 2x 151-pin (unique keys) & 1x 13-pin 28 VDC Power: SIU32S-CONN-KIT

**If your configuration option is not listed please contact factory at 1-631-567-1100

REVISION HISTORY

Hardware Manual - SIU32S
Revision DateDescription
2025-09-22Added power/signal/chassis ground isolation note.

NAI Cares

North Atlantic Industries (NAI) is a leading independent supplier of Embedded I/O Boards, Single Board Computers, Rugged Power Supplies, Embedded Systems and Motion Simulation and Measurement Instruments for the Military, Aerospace and Industrial Industries. We accelerate our clients’ time-to-mission with a unique approach based on a Configurable Open Systems Architecture™ (COSA®) that delivers the best of both worlds: custom solutions from standard COTS components.

We have built a reputation by listening to our customers, understanding their needs, and designing, testing and delivering board and system-level products for their most demanding air, land and sea requirements. If you have any applications or questions regarding the use of our products, please contact us for an expedient solution.

Please visit us at: www.naii.com or select one of the following for immediate assistance:

Documentation

https://www.docs.naii.com

FAQ

http://www.naii.com/faqs

Application Notes

http://www.naii.com/applicationnotes

Calibration and Repairs

http://www.naii.com/calibrationrepairs

Call Us

(631) 567-1100

Link to original