DS3800NSFC1J1G | OEM GE Turbine Control Fiber Optic Communication Board

Description

Product Introduction (Anti-Template)

A 4km fiber link that fails when the enclosure temperature hits 60°C is a reliability problem you don’t need. The DS3800NSFC1J1G extends the range of the standard NSFC to 4km and ruggedizes the board for harsh environments. The “1J1” provides the extended-range optical transceivers; the “G” suffix adds through-hole terminal anchoring, a high-Tg PCB, and an extended operating temperature range.

What you get is a fiber optic board that can survive in outdoor enclosures, turbine decks, and remote stations. The 2.4mm PCB (versus the standard 1.6mm) resists vibration and thermal cycling; the high-Tg material prevents delamination at high temperatures; the -25°C to +70°C operating range covers most industrial environments. A pipeline operator in the Middle East—where cabinet temperatures hit 65°C in summer—lost a standard NSFC board to thermal stress. The 1J1G has been running for two years without issue.

Key Technical Specifications

Compatible Replacement Models

Frequently Asked Questions (FAQ)

What’s the difference between the 1J1G and the 1J1?
The 1J1G adds ruggedized construction: a 2.4mm PCB (vs 1.6mm), high-Tg material for thermal resistance, and an extended operating temperature range (-25°C to +70°C vs 0°C to +55°C). The optical performance—4km range, ST connectors—is identical. The 1J1G is for harsh environments; the 1J1 is for standard control rooms.

What’s the maximum distance?
4km with 62.5/125µm fiber, up to 5km with 50/125µm fiber. The board’s ruggedization doesn’t affect the range—it affects the board’s ability to survive in harsh environments.

What’s the difference between multimode and single-mode fiber?
Multimode fiber (62.5/125µm or 50/125µm) is cheaper and uses shorter-wavelength transceivers (850nm/1300nm). Single-mode fiber has a smaller core (9/125µm) and uses longer-wavelength transceivers (1310nm/1550nm) for much longer distances (10-40km). The NSFC uses multimode transceivers—it’s not compatible with single-mode fiber.

Can I use the 1J1G with 50/125µm fiber?
Yes, and you’ll get better range (up to 5km) because 50/125µm fiber has lower attenuation. The board’s optical transceivers work with both 50/125µm and 62.5/125µm fiber.

What’s the operating temperature range?
-25°C to +70°C. That’s the board’s ambient temperature range. The board uses high-Tg material and extended-temperature components to survive in outdoor enclosures and turbine decks.

Can I hot-swap the 1J1G?
No. Power down the rack before swapping.

What’s your test procedure?
Our inbound test:

• Visual: inspect ST connectors for damage, verify 2.4mm PCB thickness.
• Optical power test: verify the board passes the optical signal with minimal loss.
• Thermal cycling: cycle the board from -25°C to +70°C for 3 cycles while monitoring continuity.
• Communication test: loopback at 115.2 kbps over a 100m fiber patch cable.
• LED test: verify LEDs illuminate correctly.

We reject about 4% of inbound boards—mostly for contaminated or damaged ST connectors or failed thermal-cycle tests.

What’s the most common field issue?
Dirty fiber connectors. The 1J1G’s ruggedization doesn’t protect against dirt. Clean ST connectors with a fiber optic cleaning pen before each connection. Also, remember that the 1J1G’s extended temperature range doesn’t apply to the fiber cable—use fiber cable rated for your environment. Finally, check your fiber bends—a tight bend can cause signal loss, which reduces the effective range. For 62.5/125µm fiber, the minimum bend radius is 25mm.

ABB PP836
ABB PP836
ABB SCC-CEL3020
ABB PM825