DS3800NFIB1D1B | Replacement for DS3800NFIB

Description

Product Introduction

The DS3800NFIB1D1B is the premium version of the fiber optic interface board—the NFIB with advanced signal conditioning, extended temperature range, conformal coating, and enhanced diagnostics. The suffix tells the story: the first “1” indicates a hardware revision with improved signal conditioning. The “D” specifies extended temperature range components with higher-grade capacitors and oscillators. The second “1” adds enhanced diagnostic features (link quality monitoring, signal integrity reporting). The final “B” is the conformal coating. This board was designed for installations where the standard NFIB wasn’t sufficient—harsh environments requiring extended temperature range, conformal coating, and better diagnostic feedback.

The board plugs into the Mark IV backplane and provides termination, signal conditioning, and optical-to-electrical conversion for fiber optic I/O links. The advanced signal conditioning includes improved noise filtering and adaptive equalization for longer or degraded fiber runs. Compare this to the DS3800NFIB (base interface board, standard temperature range, no coating). The 1D1B gives you the same basic functionality with significant improvements in reliability and diagnostic capability.

Key Technical Specifications

Compatible Replacement Models

Frequently Asked Questions (FAQ)

What’s the difference between the NFIB1D1B and the base NFIB?
The 1D1B adds advanced signal conditioning (improved noise filtering, adaptive equalization), extended temperature range (-40°C to +70°C versus 0 to 60°C), conformal coating, and enhanced diagnostics (link quality monitoring, signal integrity reporting). The base NFIB has basic signal conditioning and link status only. If you’re operating in a harsh environment or need diagnostic feedback, choose the 1D1B.

What’s “adaptive equalization” and why does it matter?
Adaptive equalization is a signal processing technique that compensates for fiber dispersion and distortion. Over long fiber runs, the optical signal can become distorted—pulses spread out and overlap. Adaptive equalization adjusts the receiver’s response to compensate, improving the signal integrity and allowing longer or more degraded fiber runs. This is particularly useful if your fiber runs are approaching the maximum length or if the fiber is aging.

What’s the “Signal Quality” LED?
The Signal Quality LED indicates the integrity of the fiber optic signal passing through the interface. The board monitors the signal-to-noise ratio, the amplitude of the incoming optical signal, and the output of the adaptive equalizer. If the signal quality is good, the LED is green. If it’s marginal, it turns amber. If it’s poor, it turns red. This gives you early warning of degrading fiber or connectors.

Do I need to upgrade my DMP firmware for the enhanced diagnostics?
The enhanced diagnostics require DMP firmware v3.5 or later. If you’re running an older firmware version, the board will still work, but the diagnostic features won’t be available. We can provide the firmware EPROMs for the upgrade if needed.

Can I use this board with the newer long-haul fiber boards?
It depends on the configuration. The 1D1B was designed for the standard fiber system. It may not be compatible with long-haul boards that use different wavelengths. Check your system configuration before mixing board types.

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 your warranty and lead time?
We stock the NFIB1D1B 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.

A-B 80190-580-01-R
TRICONEX 3625
SCHNEIDER 140CPU67260