Description
Key Technical Specifications
| Parameter | Typical Value / Note |
|---|---|
| Model | 1900002919-0000R |
| Brand | ELMA Electronic |
| Product Type | 3U VPX Universal RTM breakout board |
| Architecture | OpenVPX / VPX ecosystem accessory |
| Primary Function | Exposes RTM signals for test, integration, and debugging |
| Signal Access | rJ0, rJ1, rJ2 RTM signals broken out to 0.010″ × 0.010″ PCB pad grid |
| Typical Use | Utility, power, single-ended, and low-speed differential signal access |
| Cooling Reference | Conduction-cooled load/RTM accessory referenced by vendors |
| Dimensions | 45 × 220 × 233.4 mm (vendor-reported; verify physically) |
| Weight | 1.5 kg (vendor-reported; verify) |
| Environmental | 0°C to 55°C; 95% non-condensing humidity (vendor-reported) |
| Origin | USA (vendor-reported) |
Product Introduction
The ELMA 1900002919-0000R is a 3U VPX universal RTM breakout board used primarily during system integration, test, and validation. Instead of functioning as a processor or I/O controller, it provides physical access to RTM signals originating from the rJ0, rJ1, and rJ2 connectors on a VPX rear transition module.
This type of board is useful when engineers need to probe utility signals, auxiliary voltages, system-management bus lines, geographic addressing, reset signals, or low-voltage single-ended/low-speed differential I/O without modifying the primary VPX card. The signals are brought out to a fine pad grid, allowing temporary wiring, D-Sub termination, or direct probe access.
For procurement and maintenance teams, the main risk is misclassification. Because the part number appears in surplus listings alongside PLCs, backplanes, and control modules, buyers should confirm the physical label, connector type, and ELMA documentation before acceptance.
QA/QC Transparency SOP
- Identity Verification
Confirm 1900002919-0000R on the OEM label. Verify that the board matches a 3U VPX RTM breakout form factor, not a PLC or CPU module. - Mechanical Inspection
Inspect rJ0/rJ1/rJ2 connectors, pad grid integrity, mounting points, and PCB condition. Reject units with cracked connectors, burnt pads, or non-OEM rework. - Continuity & Isolation Check
Verify pin-to-pad continuity for representative RTM signals. Check for shorts, open circuits, and isolation between adjacent pad rows. - System Integration Test
Mate the board with a compatible 3U VPX chassis and RTM carrier. Confirm mechanical fit, connector alignment, and signal accessibility. - Documentation & Packaging
Record revision, serial number, and test results. Package in ESD-safe materials with the exact part number, revision, and condition clearly marked.
Field Engineer Gotchas
- It is not a PLC or processor.
Risk: Treating it as a control module because surplus listings mention “backplane” or “hard PLC.”
Fix: Confirm it is a VPX RTM breakout board. - Chassis and RTM compatibility must be verified.
Risk: Assuming it fits any 3U VPX slot without checking rear connector alignment.
Fix: Confirm the chassis, carrier, and RTM mechanical profile. - Pad-grid wiring is not production-hardened by default.
Risk: Using the breakout board as a permanent field interface.
Fix: Treat it as an integration/test accessory unless ELMA explicitly qualifies it for permanent deployment. - Vendor dimensions and specs vary.
Risk: Ordering based on unverified surplus data.
Fix: Measure the physical unit and cross-check with ELMA documentation. - Signal mapping is application-dependent.
Risk: Assuming fixed pin functions across all VPX systems.
Fix: Validate signal definitions against the host VPX profile and RTM schematic.
ELMA 1900002919-0000R
Application Scenarios
- VPX system integration where engineers need direct access to RTM utility and I/O signals.
- Lab validation of custom VPX boards before final cable harness or backplane deployment.
- Defense, aerospace, rail, and industrial embedded systems using OpenVPX/VPX architectures.
- Troubleshooting RTM signal paths when a field system shows intermittent rear-plane communication or power-distribution issues.
FAQ
Is 1900002919-0000R a PLC module?
No. It is a 3U VPX universal RTM breakout board used for signal access and integration.
What signals can it expose?
Vendor documentation describes access to utility, power, single-ended, low-speed differential, geographic address, and system-management signals via the rJ0/rJ1/rJ2 connectors.
Can it be used as a permanent I/O interface?
It is primarily an integration/test accessory. Permanent use should be confirmed with ELMA or the system integrator.
Does it support conduction-cooled systems?
Conduction-cooled variants are referenced in related ELMA product families, but the exact cooling qualification for 1900002919-0000R should be confirmed against the OEM datasheet.
Is this still available from ELMA?
Availability should be confirmed directly with ELMA or authorized distributors. Surplus stock may exist, but configuration and revision must be verified.
