Aprisa SRi
Industrial Wireless Router
FCC, IC Bands
UTILITY-GRADE UNLICENSED SCADA
Utility-grade unlicensed radio for Aprisa edge-of-network extension and other short-range applications. Based on proven Aprisa technology, the Aprisa SRi is a license-free 902-928 MHz FCC Part 15 / IC RSS-247 radio with unprecedented flexibility and security.
The Aprisa SR and Aprisa SR+ are distance-engineered and optimized for SCADA and telemetry applications, providing reliable, robust performance however demanding the conditions: what we call ‘real world radio’. RF performance is unbeatable, with attention paid to every element of the design: transmitter, receiver, modulation, and efficiency. The receiver maintains exceptional low noise operation via excellent sensitivity for greater distance and high selectivity and intermodulation suppression for superior protection from interference. This performance is complemented by fast switching circuitry and high transmit power ensuring long-distance operation with exceptional system reliability and availability.
Key Features
- Secure: with its defense-in-depth approach including AES encryption, authentication, address filtering, and user access control, the Aprisa SRi protects against malicious attacks and consumer-grade wireless vulnerabilities.
- Flexible hopping channel and zone arrangements: full band and reduced non-overlapping zone options allow a tailored approach to interference mitigation. The unique combination of advanced forward error correction (FEC) with packet synchronized selective ARQ combats interference. Time-sliced fast hop and advanced access control MAC delivers more usable throughput and reduced latency.
- Future-proof: the Aprisa SRi supports dual serial and dual Ethernet ports in a single, compact form factor, designed to cryptographically secure legacy serial, protect existing device investment, and enable new applications. Old and new application protocols can be run side by side.
- Aprisa SR family: the Aprisa SRi is fully integrated with the Aprisa SR family and includes all family features including networking, management, and security. Maximize your experience with reduced training and time to value.
- Advanced L2 / L3 capabilities: selectable L2 bridge, L3 router, or advanced gateway router combination L2/L3 modes with VLAN, QoS, NAT, and filtering attributes to maximize capacity in constrained bandwidth and prioritize mission-critical traffic while meeting tough security and IP network policy imperatives.
- Link efficiency: Adaptive Coding and Modulation (ACM) and forward error correction maintain the integrity of the wireless connection while an effective channel access scheme and advanced IP routing features ensure efficient transfer of data across the Aprisa SRi network.
- Reliable and robust: the Aprisa SRi requires no manual component tuning and maintains its performance over a wide temperature range using full specification industrially rated components and shared Aprisa family heritage.
- Easily managed: an easy to use GUI supports local element management via HTTPS and remote element management over the air, and SNMP support allows network-wide monitoring and control via a third-party network management system.
Aprisa SRi Details
- FFCC / IC 902-928 MHz band
- RS-232 and IEEE 802.3 protocols
- Software selectable frequency hop sets with black list capability
- Gross data rates up to 240 kbit/s
- Half-duplex operation
- 256, 192, or 128 bit AES encryption
- Adaptive Coding and Modulation: QPSK to 64 QAM
- AES-CCM to NIST SP 800-38C\
- 1W peak output power
- Advanced FEC, packet synchronized selective ARQ
- Dedicated alarm port\
- Layer 2 bridge (VLAN aware), layer 3 Router, and advanced gateway router combination L2/L3 modes
- VLAN tagging and Q-in-Q
- Flexible QoS priority enforcement – by port or traffic type, VLAN, PCP/DSCP, rule including SMAC/DMAC, IP address and IP protocol, and EtherType
- L2 / L3 / L4 filtering
- Substation hardened to IEEE 1613 class 2 and IEC 61850-3
- 30 kV ESD antenna protection
- Class 1, Division 2 for hazardous protection
- –40 to +70 °C operational temperature without fans
Aprisa SRi Applications
- Electricity grid: distribution automation DA/DFA/DR and Volt/VAR cap banks
- Smart grid: concentrator communications and GPRS replacement
- Renewables: distributed energy DER/DERM for solar and wind farms
- Water and wastewater: flow, level, and pressure modulation
- Oil & Gas: wellhead automation, production metering, lift pump automation
Product Specifications
| Aprisa SRi short-form specification | |
|---|---|
| Topology | Point-to-Multipoint (PMP) operation |
| Operating mode | Base Station or Remote Station |
| 915 MHz Industrial Licence Free Spread Spectrum | FCC / IC; 902-928 MHz ACMA / RSM; 915-928 MHz ANATEL; 902-907.5 and 915-928 MHz |
| Channel size | 50 kHz |
| Gross data rates | 64 QAM 240 kbit/s in 50 kHz 16 QAM 160 kbit/s in 50 kHz QPSK 80 kbit/s in 50 kHz |
| Channels per-hop zone | FCC / IC; 50 ACMA / RSM; 25 ANATEL; 35 |
| RF operation | Half-duplex RF operation |
| Data interface ports | Ethernet - 2 ports RJ45 10/100Base-T switch Serial - 2 ports RJ45 RS-232 (Additional RS-232 port via USB converter) |
| Transmit average output power | 0.01 – 0.4 W |
| Compression | Ethernet header and IP/TCP/UDP ROHC header compression Ethernet and serial payload compression to increase the narrowband radio capacity |
| Protocols | Ethernet - IEEE 802.3 IEEE 802.3, 802.1d/q/p with L2 Bridge or L3 Router modes Serial - Legacy RS-232 transport |
| VLAN support | IEEE 802.1Q VLAN support with single and double VLAN tagged |
| Encryption and authentication | Data encryption and authentication using 128,192 and 256 bit AES and CCM security standards |
| International standards | RF, EMC, safety, and environmental EN 60950 Class 1 Division 2 for hazardous locations ETS 300 019 Class 3.4, Ingress Protection IP51 Substation hardened to IEEE 1613 class 2 and IEC 61850-3 |
| Compliance | FCC, IC, ACMA, RSM, and ANATEL |
*Exact specifications vary according to the product variant and local certifications: please see the datasheet relevant to you for exact product specifications for your region.
DATA SHEETS
Data Sheet: Aprisa SRi
Have more questions about Industrial Wireless Router solutions? Need to Purchase 4RF Aprisa Products? Call us at 410-583-1701 or email us at questions@pulsesupply.com.