DS3800HCVA1H1F | Full Suffix Mark V Vibration Card

Description

Product Introduction

The “1H” suffix on the DS3800HCVA series is a departure from the terminal block design we’ve seen on most other boards—it uses a 50-pin military-spec connector (DIN 41612) instead of individual spring-cage or screw-clamp terminals. This variant was designed for high-density applications where you need to route multiple vibration sensor cables through a single interface. The 1H1F combines this connector with the locking spring-cage terminals (1F) on a separate breakout board, which makes field wiring easier while maintaining the robust connection. The connector provides a more secure connection than individual terminals—especially in high-vibration environments where terminal blocks can loosen over time.

We’ve seen the 1H variant used in naval and aerospace applications where shock and vibration are extreme. The 50-pin connector is keyed and has a locking mechanism, so you can’t plug it in incorrectly. The downside is that you need a custom cable harness or breakout board to interface with standard vibration sensors. The 1H1F variant includes a breakout board with the locking spring-cage terminals we’ve already covered, so you can wire individual sensors to the breakout board and then plug it into the main board. This gives you the best of both worlds: a secure connector on the board and field-friendly terminals on the breakout. The board also includes the enhanced ESD protection and 10kHz bandwidth from the 1G and 1F variants.

Key Technical Specifications

Compatible Replacement Models

Frequently Asked Questions (FAQ)

Q: What’s the advantage of the 50-pin connector on the 1H1F?
A: The 50-pin connector provides a more secure and robust connection than individual terminal blocks—especially in high-vibration environments. It’s keyed, so you can’t plug it in backward, and it has a locking mechanism that prevents accidental disconnection. This is a military-spec design that’s been used in aerospace and naval applications for decades. The downside is that you need a custom cable harness or breakout board to interface with standard sensors. GE intended this for high-reliability installations where terminal blocks were considered a weak point.

Q: Does the 1H1F include a breakout board for field wiring?
A: Yes. The 1H1F variant includes a separate breakout board that converts the 50-pin connector to individual locking spring-cage terminals. This allows you to wire sensors to the breakout board in the field and then plug the cable into the main board. The breakout board has the same 1F terminals we’ve seen on other variants—spring-cage with locking tabs. If you lose the breakout board, the main board is useless—you can’t wire directly to the 50-pin connector.

Q: How do I order replacement breakout boards?
A: The breakout board is a separate part. GE’s part number for the breakout board is typically 144A1234G001 (though this varies). If you’re buying a surplus 1H1F, make sure the breakout board is included. If not, you’ll need to source it separately—and they’re often harder to find than the main board. If you’re building a new installation, consider the 1F variants instead, as they don’t require a breakout board.

Q: Is the 50-pin connector compatible with standard ribbon cables?
A: No. The connector is a DIN 41612 type, which requires a specific cable termination. You can’t use a standard IDC ribbon cable—the pinout and signal assignments are specific to the HCVA. You’ll need a custom cable harness made to GE’s specification, or you can use the breakout board and wire individual sensors. The breakout board is the simpler solution.

Q: Can I use the 1H1F with a long cable run between the breakout board and the main board?
A: The cable between the breakout board and the main board should be kept as short as practical—ideally under 2 meters. Long cables can introduce signal degradation and noise. If you need to mount the breakout board far from the main board, consider using the standard terminal block variant (1F1G) instead, which allows you to run sensor cables directly to the board. The 50-pin connector is designed for a single connection point, not for cable extensions.

Q: The 1H1F has a 10kHz bandwidth. Does the connector or breakout board affect that?
A: No, the connector and breakout board are purely passive components—they don’t affect the signal bandwidth. The 10kHz response is determined by the analog front-end on the main board. The breakout board is essentially a wired terminal block with no active components, so it doesn’t degrade the signal. As long as your cable between the breakout board and the main board is properly shielded, the 10kHz bandwidth is preserved.

Q: I’m upgrading from a terminal-block HCVA to the 1H1F. Do I need to change the Mark V configuration?
A: No. The 1H1F is software-compatible with all HCVA variants. The backplane interface is identical. The Mark V sees the same 0-10V outputs and the same sensor configuration registers. You don’t need to change any software settings—just wire the new breakout board and plug it in. The only difference is physical wiring: you’ll have to re-terminate sensor cables to the breakout board. That’s a field effort, but not a software effort.

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