DS3800NGRA | OEM GE Speedtronic General Purpose Remote

Description

Product Introduction

The DS3800NGRA is a general-purpose remote adapter board for Mark IV systems—the “G” in the suffix indicates general-purpose functionality, the “R” indicates remote adapter, and the “A” is a manufacturing revision. This board was used in distributed control applications where remote I/O interfaces needed to be adapted to the Mark IV system. It provides flexible, configurable remote interfaces that can be adapted to different I/O configurations.

The board plugs into the Mark IV backplane and provides a configurable remote interface. It’s more flexible than the dedicated remote I/O boards, but that flexibility comes with more configuration effort. Compare this to the DS3800NFCF (fiber optic board) or the DS3800NGPA (port adapter). The NGRA is a remote adapter—it’s specifically designed for remote I/O applications where the standard boards don’t fit the configuration.

Key Technical Specifications

Compatible Replacement Models

Frequently Asked Questions (FAQ)

What does the NGRA board do?
The NGRA is a general-purpose remote adapter board for Mark IV systems. It provides flexible, configurable remote I/O interfaces for distributed control applications.

What’s the difference between the NGRA and the NGPA?
The NGRA is a remote adapter—it’s specifically designed for remote I/O applications. The NGPA is a general-purpose port adapter—it provides configurable port interfaces. The NGRA is typically used for remote I/O connections; the NGPA is used for general communication links.

How is the NGRA configured?
The NGRA is configured via jumpers on the board or through firmware settings. Check your system documentation for the specific configuration requirements. If you’re replacing a failed NGRA, photograph the jumper settings before removing the old board.

Can I hot-swap this board?
No. Mark IV backplanes are not hot-swappable. Power down the cabinet, lock out the breaker, and wait 60 seconds before removing or installing the board.

What’s the most common failure mode on the NGRA?
We’ve serviced about a dozen NGRA boards. The most common failure is the edge connector—corrosion from humidity. The second most common failure is the remote interface circuitry—it can degrade over time. The board is repairable.

What’s your warranty and lead time?
We stock the NGRA in limited quantities. Lead time is 1-2 business days. We offer a 1-year warranty. We test every board with a 24-hour burn-in and a diagnostic verification. The test report is included.

Is this board compatible with the Mark VIe?
No. This board is for Mark IV systems only. The backplane architecture is different.

TRICONEX 3721
TRICONEX 3721
TRICONEX 3351