The Toshiba GDU100 (Model 101B-00-10) is a high-reliability Data Communication Unit designed for industrial power systems and substations to facilitate seamless data exchange between field devices and central control systems under high-voltage DC operating conditions.
Product Parameters (Datasheet)
- Model Number: GDU100
- Part Number: 101B-00-10
- Device Type: Data Communication / Gateway Unit
- Rated Input Voltage: 110V / 125V DC (Nominal)
- Operating Voltage Range: 88V to 150V DC
- Communication Protocols: Support for proprietary Toshiba protocols and standard industrial bus systems
- Interface Ports: Serial (RS-232/485) and specialized high-speed backplane connectors
- Isolation: Optical and galvanic isolation between power and communication circuits
- Mounting: Standard Toshiba 19-inch rack or modular sub-rack system
- Operating Temperature: -10°C to +55°C
Country of Origin
This communication module is manufactured by Toshiba Corporation in Japan, ensuring the precision engineering and electromagnetic compatibility (EMC) required for utility-grade power applications.
Application Fields
The GDU100 is typically deployed in environments requiring high noise immunity:
- Electrical Substations: Transmitting relay status and metering data to SCADA systems.
- Power Plants: Coordinating communication between turbine controllers and the main plant bus.
- Railway Traction Power: Monitoring DC rectifiers and switchgear in transit power stations.
- Heavy Industrial Facilities: Providing data links for high-voltage motor control centers (MCC).
Product Usage Instructions
- Mounting: Slide the GDU100 into its designated slot in the Toshiba control rack. Secure the front panel screws to ensure proper grounding to the chassis.
- Power Connection: Connect the 110V/125V DC auxiliary power source. Double-check polarity, as these units are often sensitive to incorrect DC wiring.
- Communication Wiring: Use shielded twisted-pair cables for RS-485 or specialized fiber optic converters if the environment has high levels of electromagnetic interference.
- Addressing: Configure the unit’s hardware address via the internal DIP switches or through the system software before powering on.
- Status Monitoring: Use the front panel “RUN” and “ALM” (Alarm) LEDs to verify the unit has initialized correctly and is actively polling data.
Product Technical Description
The GDU100 serves as a bridge in the Toshiba “G-Series” or similar automation architectures. Technically, it functions as a protocol converter and signal isolator. Since it operates on a 110/125V DC station battery bus, it includes a robust internal DC-DC converter to provide stable logic-level power. The 101B-00-10 variant is specifically hardened against the surges and transients common in high-voltage switchyards, utilizing a multi-layered shielding design to protect data integrity during circuit breaker operations.
Q&A (Common Questions)
Q: Can I power this unit with 110V AC? A: No, the GDU100-101B-00-10 is strictly a DC-powered unit. Connecting it to AC power may cause permanent damage to the internal power supply module.
Q: What is the primary function of the “101B” revision? A: This suffix generally refers to a specific communication hardware configuration, often defining the number of ports or the specific firmware version compatible with Toshiba’s upper-level controllers.
Q: Does this unit support Ethernet communication? A: This specific legacy model focuses on serial and backplane data. For Ethernet connectivity, an external gateway or a newer generation GDU model would be required.
Q: How do I clear a communication “Alarm” LED? A: Check the physical cable connections first. If the wiring is intact, a reset of the main controller or a power cycle of the GDU100 is typically required to re-establish the handshake.
Similar Model Recommendations
- Toshiba GDU101 (Enhanced port density variant)
- Toshiba GDU200 (Modern digital successor)
- Toshiba DIU100 (Digital Input Unit for the same system)
- Toshiba DOU100 (Digital Output Unit companion)
- Toshiba PSU-110D (Matching 110V DC Power Supply Module)
Find more technical specifications for the Toshiba GDU100 and explore our inventory of industrial data communication modules.
