microNode
Small and ultra-power efficient module for Smart Grid and other device applications

The On-Ramp Wireless ULP microNode provides unprecedented range and robustness for wireless sensing applications in a small package. Optimized for low-power applications requiring multi-year battery life, the On-Ramp Wireless microNode, sets a new standard for wireless networking performance, system cost, and flexibility.
On-Ramp Wireless’ Ultra-Link Processing™ (ULP) technology offers a 25× range advantage over competing solutions, equating to a more than 600× advantage in coverage. This means that ULP is the first system using extremely low-power technology to provide metro-scale networking in the unlicensed ISM-bands. ULP also provides a 25× network capacity advantage, which substantially lowers network infrastructure cost per square mile of coverage.
The microNode’s open, standard interface provides easy integration with a variety of customer devices in need of a high performance wireless module optimized for size and power consumption.
Key Features
Industry leading range, capacity, and total cost of ownership for wireless sensor networks
2.4 GHz free ISM-band using Direct-Sequence Spread Spectrum (DSSS) for increased resiliency
Ultra-low power sensor applications extend battery life greater than 20 years
Dynamic receive sensitivity maximizes data rate and power savings
AES 128/256-bit encryption
Small form factor and completely engineered module ready for partners to integrate easily into existing or planned products
Supports industry-standard sensor interfaces
microNode available Q3 2011
Specifications:
| Parameter | On-Ramp microNode |
|---|---|
| Wireless Frequency | 2.4 GHz ISM |
| Bandwidth | 1 MHz |
| Modulation | Dynamic-Direct Sequence Spread Spectrum (D-DSSS) |
| Multiple Access Scheme | Random Phase Multiple Access (RPMA) |
| Transmit Power | +20 dBm (FCC/IC)/+10dBm (ETSI) |
| Receive Sensitivity | -142 dBm |
| Data Throughput | 60 kbps (in 1 MHz) |
| Indoor Range | 1 km (0.6 miles) |
| Outdoor Range | Up to 64 km (40 miles)/3200 km free space range |
| Maximum Allowable Path Loss | 172 dBm (FCC/IC) |
| Access Point Capacity | Each ULP Access Point can support 64,000 nodes in a star topology |
| Average Power (sleep) | 72 µW |
| Typical Power (Rx) | 300 mW |
| Typical Power (Tx) | 750 mW |
| Operating Voltage | 2.5 – 5.5 VDC |
| Dimensions | 26 mm (W) x 55 mm (H) x 3 mm (D) |
| Operating Temperature | -40 °C to 85 °C |
| Security | AES 128/256-bit encryption |
| Interfaces | SPI |
| Certifications | FCC, IC, ETSI* * Other certifications are currently in process. |
