An amazing, small, rugged, In-Line 1553/ARINC Ethernet Converter: NLINE-EMA4(tm). We’ve embedded our industry-leading AltaCore-1553/ARINC protocol engine technology directly into a rugged, MIL-810G/461F cable assembly. Programming of the device is just like any other Alta product with all the advanced BC, RT and BM & ARINC Controls, and simplified programming using the AltaAPI software development kit – you can even run your existing application without re-compile, just as with ENET products. Real-Time 1553/ARINC-Ethernet conversion (<20 uSec) and even auto 1553/ARINC BM/RX data to Ethernet without any programming (auto 1553/ARINC to UDP conversion).
Almost every avionics or communication system implements an Ethernet topology, but most 1553/ARINC Ethernet converter products are processor/Linux based with insecure IP network stacks that greatly slow down Ethernet communications. ENET and NLINE designs are FPGA hardware-based UDP thin servers that provide real-time Ethernet/1553/ARINC bridging/conversion, reducing threats of viruses or internal hacking. These products provide all the advanced controls of traditional 1553/ARINC interfaces and can simultaneously auto-bridge time-stamped 1553 UDP packets without any programming. There is a fast auto-boot feature where 1553 and MIL-1760 RX controls can be managed through standard socket communications as implemented in almost every OS, even DO-178 compliant systems.
On the computer side, are rugged, over-molded RJ-45 Ethernet and USB plug power connectors. On the 1553/ARINC side, is a rugged 38999 connector. An optional cable can break out the signals to a standard 1553 jack connector (BJ77 style) and a DB26 cable connector. See Part Numbers tab for optional cable part number. See below for example cabling. The product is designed to accommodate various connectors for your custom requirements – contact Alta for details.

Signal Capture circuitry is included on the first channel for cable troubleshooting and cybersecurity modeling. The example captures below are shown with our AltaView analyzer, or integrate captures in your application with AltaAPI SDK (included):

Here you can find documentation pertaining to the ENET-EMA4. For additional documentation and software, please visit our secure download area.
| Title | Size | Type |
|---|---|---|
| Alta-NLINE 1553 ARINC Product Family PR | 476.98 KB |
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| AltaView for ARINC (PDF) | 733.13 KB |
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| AltaView for ARINC (PPT) | 1.53 MB | ppt |
| AltaView for MIL-STD-1553 (PDF) | 643.34 KB |
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| AltaView for MIL-STD-1553 (PPT) | 1.27 MB | ppt |
| ARINC SCSI Connector and Cable Pin Outs and Color Codes | 287.62 KB |
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| ARINC Tutorial and Reference |
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| MIL-STD-1553 Tutorial and Reference | 1.19 MB |
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AltaAPI
Alta’s 1553 and ARINC cards include the most advanced Application Programming Interface (API) library tools in the avionics industry, AltaAPI. The API architecture is a properly OSI modeled development package that provides an extremely flexible design to provide quick porting to various operating systems (such as VxWorks 5.X/6.X/7/MILS, Integrity, LynxOS RTOS), Linux 32- and 64-bit, Solaris 10, LabVIEW and 32- and 64-bit Windows 7/8/8.1/10.
AltaView Bus Analyzer
Alta’s Windows avionics analyzer product, AltaView, provides the most modern technologies for MIL-STD-1553 and ARINC-429 network activity and data analysis. Win Server/7/8/10/11 Compatible and VMware with ENET/NLINE Ethernet. Ideal for Cybersecurity Testing.
No Seat License or Dongles - Unlimited Software Updates
AltaAPI-LV
Most of Alta’s MIL-STD-1553 & ARINC products include the industry’s most advanced National Instruments’ LabVIEW™ & RT Support Tools, AltaAPI-LV. Built-in native NI LabWindows™ environment and PCI VISA drivers, Alta’s AltaAPI-LV provides a unified NI tool for easy integration to LabVIEW, RT, and LabWindows™ applications. Easily port native DLLs for Testbench or VIs for Veristand.
AltaRTVal
AltaRTVal provides the most advanced MIL-STD-1553 COTS protocol validation tool in the industry, and helps prepare for Test Systems Inc Full SAE 4111 Validation. The software implements protocol tests for both the SAE AS4111 RT Validation Test Plan and the SAE AS4112 RT Production Test Plan. Ideal for testing new software revisions of current designs or manufacturing production units.
| Part Number | Description | Picture | |
|---|---|---|---|
| BusKit-1B2T-001 | 2 x Single Stub Couplers 2 x 78 Ohm Terminators with 3-Slot Male Connectors 3 x 15ft Lab Grade Cables with 3-Slot Male Connectors |
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| BusKit-1B4T-001 | 2 x Dual Stub Couplers 2 x 78 Ohm Terminators with 3-Slot Male Connectors 5 x 15ft Lab Grade Cables with 3-Slot Male Connectors |
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| RFCap-001 | RF Dust Cap (for Couplers) with 3-Slot Male Connector |
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| Term-001 | 78 Bus Terminator with 3-Slot Male Connector |
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| Part Number | Description | |
|---|---|---|
| ***See Below for Optional J1 Cables*** | ||
| Multi Protocol Models | ||
| NLINE-EMA4-1D4 | One Channel of Dual Redundant MIL-STD-1553 with Dual Function (BC/Mon or mRT/Mon) Capability and 4 Shared Tx/Rx Channels of ARINC-429 and 2 Rx/2 Tx ARINC-717 Selectable Channels (Each 717 Rx/Tx Replaces Two 429 Channels). | |
| NLINE-EMA4-2D4 | Two Channels of Dual Redundant MIL-STD-1553 with Dual Function (BC/Mon or mRT/Mon) Capability and 4 Shared Tx/Rx Channels of ARINC-429 and 2 Rx/2 Tx ARINC-717 Selectable Channels (Each 717 Rx/Tx Replaces Two 429 Channels). | |
| NLINE-EMA4-1F4 | One Channel of Dual Redundant MIL-STD-1553 with Full Function (BC/mRT and Mon) Capability and 4 Shared Tx/Rx Channels of ARINC-429 and 2 Rx/2 Tx ARINC-717 Selectable Channels (Each 717 Rx/Tx Replaces Two 429 Channels). | |
| NLINE-EMA4-2F4 | Two Channels of Dual Redundant MIL-STD-1553 with Full Function (BC/mRT and Mon) Capability and 4 Shared Tx/Rx Channels of ARINC-429 and 2 Rx/2 Tx ARINC-717 Selectable Channels (Each 717 Rx/Tx Replaces Two 429 Channels). | |
| Options: | Example NLINE-MA4-2F4-ADEIN | |
| -A | AltaView SW Enabled | |
| -D | Direct Coupling (Price Per Channel) | |
| -E | Extended Temp (-40 to +85 Indust Components) | |
| -I | Tx Inhibit (BM Function Only) | |
| -N | NVRAM Write Disabled | |
| ***Optional Cable Option | ||
| NLCAB-EMA4-P1-01/02-AUX01 |
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