DS200SIOBH1 | GE DS200 4-Port RS-232/485 Module In Stock

Description

Product Core Brief

• Model: DS200SIOBH1
• Brand: General Electric (GE)
• Series: Mark V DS200
• Core Function: High-speed serial communication board
• Product Type: High Speed Serial I/O (4 ports)
• Key Specs: 4 x RS-232/485 | 921.6 kbps | 128-byte FIFO | Isolated
• Condition: New Surplus.

Product Introduction

The DS200SIOBH1 is a high-speed serial communication board for GE’s Mark V DS200 series, used in Speedtronic turbine control systems. It provides four independently configurable RS-232 or RS-485 serial ports with data rates up to 921.6 kbps.

The SIOBH1 is a performance upgrade from the SIOBG1 series. Standard SIOB boards are limited to 115.2 kbps. The SIOBH1 supports 921.6 kbps (8x faster) with larger 128-byte FIFOs (vs 16-byte). Use it for high-speed data logging, fast PLC communication, or connecting devices that require higher baud rates (modern HMIs, high-speed printers, data concentrators). Ports are optically isolated (2500 VAC) with DIP switch configuration—no software required.

Key Technical Specifications

Key Selling Points & Differentiators

• 921.6 kbps maximum baud rate – 8x faster than standard SIOB (115.2 kbps). Transfer large data logs quickly. Reduce communication latency.
• 128-byte FIFO per port – 8x larger than SIOB (16-byte). Handles high-speed data bursts without CPU intervention.
• Software-free configuration – DIP switches set baud rate, protocol, termination, bias. No drivers or special software.
• High-speed capable RS-485 – Supports 921.6 kbps over short distances (100 ft). Use with modern PLCs and high-speed data loggers.
• Blue speed LED – Lights when port configured for >115.2 kbps. Visual confirmation of high-speed mode.
• Optically isolated (2500 VAC) – Prevents ground loops at high speeds where noise is more critical.
• Switchable termination and bias – Built-in 120Ω terminator and 560Ω bias resistors per port.
• QC includes 921.6 kbps loopback test – All 4 ports at maximum baud rate for 24 hours, zero bit errors.
• 2-year warranty

Frequently Asked Questions (FAQ)

Q: What is the difference between SIOBG1AAA (standard) and SIOBH1 (high speed)?

Q: What is the maximum cable length at 921.6 kbps?
A: RS-232: 25 ft (7.6 m). RS-485: 100 ft (30 m) with shielded twisted pair. For longer distances, reduce baud rate. At 115.2 kbps, RS-485 length is 1000 ft (300 m). At 9600 baud, 4000 ft (1200 m).

Q: Can the SIOBH1 communicate with older SIOB boards on the same RS-485 network?
A: Yes—baud rate must match the slowest device. If you have a mix of SIOB (115.2 kbps max) and SIOBH1, set the SIOBH1 to 115.2 kbps or lower. The SIOBH1 is backward compatible.

Q: Does the SIOBH1 require special cables for high speed?
A: Use the included breakout cable for RS-232. For RS-485 at 921.6 kbps, use Belden 9842 (shielded twisted pair) with impedance 120Ω. Keep stub lengths under 6 inches. Terminate both ends with 120Ω (enable onboard termination).

Q: How do I configure a port for 921.6 kbps?
A: DIP switch settings: For Port 1, set switches 1-4 to binary 1101 (depends on coding—see guide). The blue LED lights when configured for >115.2 kbps. Verify with an oscilloscope if unsure.

Q: The board has a 26-pin connector but no DB9 ports on the panel. What cable do I need?
A: The included breakout cable converts 26-pin to 4 x DB9 male (straight-through pinout). Cable length is 1 meter (3.3 ft). If you need longer cable, use RS-485 mode or add extenders. We sell extended cables (2 m, 5 m) as accessories.

Q: What QC tests are specific to the SIOBH1?
A: Ten tests:

1. RS-232 loopback at 921.6 kbps: 10 million bytes per port, zero errors
2. RS-485 loopback at 921.6 kbps: 10 million bytes per port, zero errors
3. All baud rates tested: 300 to 921.6 kbps, accuracy ±1%
4. 128-byte FIFO test: continuous transmission at 921.6 kbps
5. Flow control: RTS/CTS and XON/XOFF at 921.6 kbps
6. Isolation: port to backplane at 3000 VAC; port to port at 1500 VAC
7. RS-485 termination: 120Ω ±5%
8. RS-485 bias: 560Ω ±5%
9. LED test: all TX/RX and blue speed LEDs
10. Burn-in: 72 hours at +65°C, all ports at 921.6 kbps continuous loopback

Q: What shipping protection?
A: Anti-static bag, ESD foam cradle, double-wall box with “ESD SENSITIVE,” “FRAGILE” labels. Breakout cable (26-pin to 4 x DB9) in separate bag. DIP switch configuration guide laminated. Spare termination resistors included. Each board ships individually.

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