DS200SIOCG1AEA | Mark V Turbine Long Range Serial Interface OEM

Description

Product Core Brief

• Model: DS200SIOCG1AEA
• Brand: General Electric (GE)
• Series: Mark V DS200
• Core Function: High-speed current loop serial communication
• Product Type: High Speed 4-20mA Serial I/O Board (4 channels)
• Key Specs: 4 x 4–20 mA current loop | 9600 baud | 5000 ft range | Removable terminals
• Condition: New Original.

Product Introduction

The DS200SIOCG1AEA is a high-speed 4–20 mA current loop serial communication board for GE’s Mark V DS200 series, used in Speedtronic turbine control systems. It supports data rates up to 9600 baud—eight times faster than the standard SIOCG1A (1200 baud).

The “AEA” suffix indicates a high-speed current loop variant. Standard SIOC boards are limited to 1200 baud due to the bandwidth of 4–20 mA signaling. The AEA uses improved current loop drivers and receivers to achieve 9600 baud over 5000 feet (1500 meters). Removable terminal blocks replace the breakout cable. Use it for remote operator interfaces, PLCs, or data loggers requiring faster update rates over long distances.

Key Technical Specifications

Key Selling Points & Differentiators

• 9600 baud over 5000 feet – Eight times faster than standard SIOC (1200 baud). Transfer larger data blocks without waiting. 9600 baud is the standard speed for most PLC and HMI serial ports.
• Removable terminal blocks – No breakout cable. Each channel has its own 3-position terminal block (LOOP+, LOOP-, SHIELD). Wire directly to field cable.
• Enhanced rise/fall time (<100 µs) – Standard current loop drivers have 500 µs rise time (limits to 1200 baud). AEA uses faster optocouplers and drivers. 9600 baud reliable.
• Blue speed LED – Lights when channel configured for >1200 baud. Visual confirmation.
• Extended temperature range (−40°C to +70°C) – Operates in unheated enclosures and outdoor cabinets.
• Enhanced ESD protection (±15 kV) – Standard had ±4 kV. Meets IEC Level 4.
• Compatible with existing SIOC remote converters – Works with standard 4–20 mA to RS-232 converters (GE ACC-SIOC-RMT). For 9600 baud, ensure converter is high-speed version (ACC-SIOC-RMT-HS, sold separately).
• QC includes 9600 baud loopback over 5000 ft simulation – 24-hour test, zero bit errors.
• 2-year warranty

Frequently Asked Questions (FAQ)

Q: What is the difference between SIOCG1A (standard) and SIOCG1AEA (high speed)?

Q: Can I use the AEA with existing (1200 baud) remote converters?
A: Yes—at 1200 baud. For 9600 baud, you need high-speed remote converters (ACC-SIOC-RMT-HS). Standard converters have 500 µs rise time and will corrupt data at 9600 baud. We sell the high-speed converters separately.

Q: What is the maximum cable length at 9600 baud?
A: 5000 ft (1500 m) in low-noise environments. In industrial environments with VFDs, motors, or welding equipment, derate to 3000 ft (900 m). For 3000 ft, use 18 AWG twisted pair shielded cable. Ground shield at one end only.

Q: Can I run the AEA at 9600 baud over 5000 ft with 24 AWG cable?
A: 24 AWG has higher resistance (25Ω per 1000 ft round trip vs 12.8Ω for 18 AWG). At 5000 ft, 24 AWG adds 125Ω loop resistance. Allowable loop resistance: (24 V – 5 V) / 0.02 A = 950Ω. Subtract 250Ω receiver = 700Ω for cable. 125Ω is well within 700Ω. Electrical limit is fine, but signal integrity (capacitance) may be marginal. Use 18 AWG for 5000 ft at 9600 baud.

Q: How do I wire the terminal block?
A: Three positions:

• LOOP+: 24 VDC loop power output (connect to remote converter LOOP+)
• LOOP-: Current return (connect to remote converter LOOP-)
• SHIELD: Connect cable shield (optional, for noise immunity)
  Keep wires twisted. Do not exceed 6 inches of untwisted length.

Q: What is the maximum number of AEA boards in one rack?
A: Limited by backplane current. Each AEA draws 800 mA at 5 VDC. Standard Mark V power supply provides 5–10 A. With CPU (2.5 A) and I/O modules, you can typically install 2–3 AEA boards. Use external 5 V supply for larger systems (contact us for external power kit).

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

1. Loop current accuracy: 4.00 mA and 20.00 mA per channel, error <±0.1 mA
2. Rise/fall time: <100 µs at 20 mA step (oscilloscope measurement)
3. 9600 baud loopback: 5000 ft simulation (500Ω loop resistance), 24 hours, zero errors
4. 4800, 2400, 1200 baud: 1 hour each, zero errors
5. Terminal block screw torque: 0.55 Nm verified
6. Isolation: channel-to-channel at 1800 VAC; channel-to-backplane at 1800 VAC
7. ESD test: ±15 kV contact, 10 discharges per channel
8. Low temperature: −40°C for 4 hours, 9600 baud operation
9. LED test: TX, RX, and blue speed LEDs
10. Burn-in: 72 hours at +65°C, all channels at 9600 baud, 500Ω loop resistance

Q: What shipping protection?
A: Anti-static bag, ESD foam cradle with cutouts for 4 terminal blocks (blocks shipped installed). Double-wall box with “ESD SENSITIVE,” “FRAGILE” labels. Spare terminal blocks in separate bag. DIP switch configuration guide laminated. Spare termination resistors (250Ω) included. Torque card included. Each board ships individually. Remote high-speed converters sold separately.

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