ABB RER 103 MM Bus Connection Module
The ABB RER 103 MM is a bus connection module designed to interface protection and control devices across optical and electrical networks. It functions as a signal converter, translating optical inputs from SPA, LON, or IEC 60870-5-103 communication buses into electrical RS-485 signals compatible with equipment such as the RE500 series.
Signal Conversion & Network Topologies
The module bridges optical communication protocols with electrical interfaces to support flexible network architectures. It accommodates both loop and star bus topologies to adapt to different substation automation requirements. Additionally, a selectable line idle state configuration allows users to set the optical signal to lit or dark when the line is idle.
Physical & Electrical Characteristics
Compact and designed for easy integration, the unit measures 35 mm × 73 mm × 20 mm and connects via D-sub connectors. It receives 5 VDC power directly from the host device with a power consumption of approximately 0.4 W, supporting data transmission speeds up to 1.25 Mbps across an operating temperature range of -40 deg C to +70 deg C.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | RER 103 MM |
| Brand | ABB |
| Country of Origin | Finland |
| Dimensions (W x H x D) | 35 mm x 73 mm x 20 mm |
| Operating Temperature | -40 deg C to +70 deg C |
| Power Supply | 5 VDC (from host device) |
| Power Consumption | 0.4 W |
| Max Data Transmission Rate | 1.25 Mbps |
| Supported Topologies | Loop, Star |
Frequently Asked Questions
Q: What is the primary function of the RER 103 MM module? A: It converts optical signals from SPA, LON, or IEC 60870-5-103 buses into electrical RS-485 signals for compatibility with RE500 series equipment.
Q: How is the module powered during operation? A: It receives 5 VDC power directly from the host device and consumes approximately 0.4 W of power.
Q: What bus configurations are supported by the unit? A: The module supports both loop and star topology configurations for flexible system design.
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| Condition | 100% New with Original Package |
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| Shipping Port | ShangHai, Xiamen |
| Warranty | 12 Months |
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| A: Yes, we collaborate with over 50 countries worldwide. As a top supplier in China, we offer significant discounts based on market trends. |
| Q: What Is the Warranty Period? |
| A: All our new and original products come with a standard one-year warranty. |
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| A: Delivery usually takes 1-3 days after receiving the initial payment. For items with a lead time, shipping will occur according to the specified schedule. |
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