User's Manual

20 | About the Radio
Aprisa SR User Manual
Product Features
Functions
Point-to-Point (PTP) or Point-to-Multipoint (PMP) operation half duplex
Licensed frequency bands:
VHF 136-174 MHz
UHF 400-470 MHz
Channel sizes:
12.5 kHz
25 kHz
Typical deployment of 30 remote stations from one base station with a practical limit of a few
hundred remote stations
Transparent to all common SCADA protocols; e.g. Modbus, IEC 60870-5-101/104, DNP3 or similar
Dual antenna port option for external duplexers or filters (half duplex operation)
Two Ethernet data interfaces plus two RS-232 asynchronous data interfaces
Terminal server operation for transporting RS-232 traffic over IP
Data encryption and authentication
Layer 2 Ethernet and layer 3 IP filtering
SNMPv2 and SNMPv3 support
Radio and user interface redundancy (provided with Aprisa SR Protected Station)
Complies with international standards, including ETSI RF, EMC, safety and environmental standards
Performance
Long distance operation
High transmit power
Low noise receiver
Forward Error Correction
Electronic tuning over the frequency band
Thermal management for high power over a wide temperature range
Usability
Configuration / diagnostics via front panel Management Port USB interface, Ethernet interface
Built-in webserver with full configuration, diagnostics and monitoring functionality, including
remote station configuration / diagnostics over the radio link
LED display for on-site diagnostics
Software upgrade and diagnostic reporting via the Host Port USB flash drive
Over-the-air software distribution and upgrades
Simple installation with integrated mounting holes for wall, DIN rail and rack shelf mounting