Description
Product Core Brief
- Model: F31X111PSHAFG1
- Brand: GE (General Electric)
- Series: Excitation / Power Conversion Control Platform
- Core Function: High-capacity power supply board with fiber-optic interface power for excitation and power conversion systems.
- Product Type: Power Supply Board with Fiber-Optic Interface Power
- Key Specs: Multiple DC outputs | Fiber-optic transceiver supplies | High current capacity | Protection circuitry
- Condition: ⚠️ Discontinued – New Surplus / OEM stock. Specialized fiber-optic variant.
Product Introduction
This GE F31X111PSHAFG1 is a specialized high-capacity power supply board for GE’s excitation and power conversion control platforms. The “F” suffix indicates this board includes dedicated low-noise power outputs for fiber-optic transceivers and communication modules, making it ideal for systems with fiber-optic network interfaces.
The board provides multiple regulated DC outputs, including high-current +5 V and +24 V supplies for logic and field devices, plus dedicated low-noise outputs for fiber-optic transceivers. The fiber-optic power outputs have additional filtering and tighter regulation to ensure optimal performance of optical communication in high-EMI environments. The board includes comprehensive protection circuitry and status monitoring for reliable operation in critical power generation applications.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | GE (General Electric) |
| Model Number | F31X111PSHAFG1 |
| Product Type | Power Supply Board (High Current + Fiber-Optic Power) |
| Input Voltage | 120/240 VAC or 125 VDC |
| Output Voltage 1 | +5 VDC (logic supply, high current) |
| Output Voltage 2 | +24 VDC (field supply) |
| Output Voltage 3 | +5 VDC (fiber-optic transceiver supply, low noise) |
| Output Voltage 4 | ±15 VDC (analog supply) |
| Output Current (5V Logic) | Up to 10 A continuous |
| Output Current (24V) | Up to 5 A continuous |
| Output Current (5V Fiber) | Up to 2 A continuous |
| Output Ripple (Fiber Supply) | <20 mV peak-to-peak |
| Protection | Overcurrent, short-circuit, thermal, overvoltage |
| Status Indication | LED indicators for each output |
| Communication | Backplane connector |
| Operating Temperature | 0 to +55 °C |
| Storage Temperature | -40 to +85 °C |
| Board Dimensions | Standard 6U or custom form factor |
Key Selling Points & Differentiators
- Dedicated Fiber-Optic Transceiver Power: Specialized low-noise +5 V output with <20 mV ripple ensures optimal performance of optical communication modules in high-EMI environments.
- High Current Capacity: Provides up to 10 A on the +5 V logic supply—supports demanding configurations with multiple control and communication modules.
- Comprehensive Protection: Overcurrent, short-circuit, thermal, and overvoltage protection on all outputs. Critical for protecting sensitive control electronics.
- Quantified Testing Protocol: We test each output under full load for 12 hours. Ripple on the fiber-optic supply is verified with an oscilloscope at 20 MHz bandwidth.
- Warranty & Support: 2-year functional warranty. We provide installation guidance and compatibility verification.
Frequently Asked Questions (FAQ)
Q1: What is the difference between the PSHAFG1 and the standard PSHAEG1?
A: The PSHAEG1 is the standard high-current power supply. The PSHAFG1 includes an additional dedicated low-noise +5 V output for fiber-optic transceivers, with ripple below 20 mV. The PSHAFG1 is specifically designed for systems with fiber-optic communication modules.
Q2: Which modules require the dedicated fiber-optic transceiver power output?
A: Fiber-optic communication boards and network interface modules that use optical transceivers require low-noise power to maintain signal integrity. The PSHAFG1’s dedicated output is designed for these modules. Using a standard power supply can result in increased bit error rates or intermittent communication faults.
Q3: Does the dedicated fiber-optic output have the same protection as the other outputs?
A: Yes, the fiber-optic transceiver output has the same overcurrent and short-circuit protection as the main logic outputs. The trip point is approximately 2.2 A, and the protection auto-resets after fault clearance.
Q4: Can I use the dedicated fiber-optic output for other purposes?
A: The output is a standard +5 V supply and could theoretically be used for other devices. However, it is specifically filtered for low noise and may not have the same current capacity as the main +5 V logic supply (2 A vs. 10 A). Using it for non-fiber-optic loads may waste its low-noise capability.
Q5: What is the ripple specification on the dedicated fiber-optic output?
A: The ripple is less than 20 mV peak-to-peak at full load, measured with a 20 MHz bandwidth oscilloscope. This is significantly lower than standard power supplies (typically 50 mV) and is essential for maintaining optical signal integrity.
Q6: Is this board compatible with the standard F31X series backplane?
A: Yes, the board is designed for the F31X series backplane. It uses standard connectors and mounting. Verify the specific slot assignment in your system documentation before installation.
Q7: Does this board have battery backup?
A: This specific variant does not include battery backup. It is a power supply only. If your system requires parameter retention during power loss, you would need a separate memory backup board.
Q8: What is the lifecycle status of the PSHAFG1?
A: This board is rare. GE produced the PSHAFG1 in limited quantities for systems with fiber-optic communication. We have a small batch of new surplus units. Used pulls are very uncommon. If your system requires the dedicated fiber-optic power output, we recommend securing a spare. Our new surplus units are fully tested and guaranteed. We do not expect to source more of this variant.

ABB CI854AK01
Schneider TSXP572634
A-B 1756-PAR2
Email: sales@plcfcs.com
Phone:+86 15343416922
Wechat:+86 15343416922
PLC : Allen Bradley , Siemens MOORE, GE FANUC , Schneider
DCS : ABB ,Honeywell, Invensys Triconex , Foxboro , Ovation,YOKOGAWA, Woodword, HIMA
TSI : Triconex , HIMA , Bently Nevada , ICS Triplex
Complete service we offer
Payment: T/T
Delivery: 1-2 days
Shipment: DHL UPS FedEx, etc
After-sales service: Yes, 24/7 hours




Email: jiedong@sxrszdh.com
Phone / Wechat:+86 15340683922

Wechat:+86 15343416922