DS3800NGMA | Mark IV General Purpose I/O Module

Description

Product Introduction

The DS3800NGMA is a general-purpose I/O communications board for Mark IV systems—the “G” in the suffix indicates general-purpose functionality, the “M” indicates I/O capability, and the “A” is a manufacturing revision. This board was used in installations where the standard fiber boards (NFCF, NFCD, NFDB) or the NGDC didn’t have the right configuration for the application. It provides flexible, configurable I/O links for remote devices and inter-cabinet communication.

The board plugs into the Mark IV backplane and provides a configurable I/O interface. It’s more flexible than the dedicated communication boards, but that flexibility comes with more configuration effort. Compare this to the DS3800NFCF (single-channel fiber optic board) or the DS3800NGDC (general-purpose fiber optic board). The NGMA is a general-purpose I/O board—it can handle different types of I/O depending on the configuration.

Key Technical Specifications

Compatible Replacement Models

Frequently Asked Questions (FAQ)

What does the NGMA board do?
The NGMA is a general-purpose I/O communications board for Mark IV systems. It provides flexible, configurable I/O links for remote devices and inter-cabinet communication.

What’s the difference between the NGMA and the NGDC?
The NGMA is a general-purpose I/O board—it can handle different types of I/O depending on configuration. The NGDC is a general-purpose fiber optic board—it’s specifically for fiber optic communication. The NGMA is more versatile but requires more configuration effort.

How is the NGMA configured?
The NGMA is configured via jumpers on the board or through firmware settings. The exact configuration depends on the application. Check your system documentation for the specific configuration requirements. If you’re replacing a failed NGMA, 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 NGMA?
We’ve serviced about a dozen NGMA boards. The most common failure is the edge connector—corrosion from humidity. The second most common failure is the configuration memory—the settings can become corrupted. The board is repairable.

What’s your warranty and lead time?
We stock the NGMA 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.

GE IS220UCSAH1A
ABB PP836A
ETEL DSB2P152-111E-000H