DS3800HIOB1H1G | Full Suffix GE Speedtronic Expansion Card

Description

Product Introduction

The DS3800HIOB1H1G is the high-capacity I/O expansion board in the 1H1G configuration—50-pin DIN connector, 5A fusing on both banks, and conformal coating. This board provides 64 additional I/O points, double the capacity of the HIOA, and the 50-pin DIN connector ensures reliable connections in high-vibration environments. The 5A fuses provide maximum headroom for expansion modules with high current requirements, and the conformal coating protects the PCB from moisture, dust, and chemicals. The extended operating temperature range (-20°C to +65°C) makes this board suitable for harsh environments.

We’ve used the HIOB1H1G in an offshore oil platform expansion where we needed to add 64 I/O points for additional process control. The 50-pin DIN connector provided the reliable connection needed for the high-vibration environment, and the 5A fuses handled the current requirements of the expansion modules. The conformal coating protected the board from the salt spray and humidity, and the extended temperature range ensured reliable operation in the un-conditioned equipment room. The board integrated seamlessly with the main controller.

Key Technical Specifications

Compatible Replacement Models

Frequently Asked Questions (FAQ)

Q: What’s the advantage of the 50-pin DIN connector on the 1H suffix?
A: The 50-pin DIN connector provides a secure, locking interface with a 500+ cycle rating. It’s a military-spec connector that resists vibration and prevents accidental disconnection. This is a significant upgrade over terminal blocks in high-vibration environments. The 1H suffix is the preferred choice for expansion boards in harsh environments.

Q: What is conformal coating, and why is it on the 1H1G?
A: Conformal coating is a thin polymeric film applied to the PCB that protects against moisture, dust, chemicals, and temperature extremes. The “1G” suffix indicates the board is conformal-coated and has an extended operating temperature range (-20°C to 65°C). This is essential for offshore, desert, or high-humidity installations where corrosion and contamination can cause premature board failure.

Q: Why does the HIOB1H1G have 5A fuses on both banks?
A: The 5A fuses provide maximum headroom for expansion modules with high current requirements. This is particularly useful when the expansion backplane includes output modules driving large solenoids or contactors, or when cable runs are long and capacitance causes inrush currents. The 5A rating is the highest available for expansion boards.

Q: How many I/O points can the HIOB1H1G support?
A: The HIOB1H1G supports up to 64 additional I/O points. This includes both analog and discrete I/O modules. If you need more than 64 points, you can use multiple HIOB boards, or combine HIOA and HIOB boards to achieve the required capacity.

Q: Does the HIOB1H1G include a breakout board for field wiring?
A: The HIOB1H1G typically terminates directly to the 50-pin connector. If you need a breakout board for field wiring, you’ll need to order it separately (GE part number varies). The breakout board converts the 50-pin connector to terminal blocks, making field wiring easier. The 5A fuses on the main board protect the field supply rail, regardless of whether you use a breakout board.

Q: Can I use the HIOB1H1G with all Mark V I/O modules?
A: Yes, the HIOB1H1G is compatible with all Mark V I/O modules, including analog, discrete, frequency, and counter modules. The board provides the backplane interface for the modules to communicate with the main controller.

Q: What’s the backplane current draw of the HIOB1H1G?
A: The HIOB1H1G draws 1.0A from the 5V backplane rail. This is the same as the standard HIOB. The Mark V power supply is rated at 6A on the 5V rail, so the HIOB1H1G is within the limit. If your rack has multiple HIOB boards, check your total backplane current. We recommend keeping total backplane current below 5.5A for margin.

GE DS200UCIAG2A
GE DS200UCIAP1AAC
GE DS200UCIBG1A