4RF Aprisa SR+ User Manual - page 42
40 | About the Radio
Aprisa SR+ User Manual 1.5.3
Interfaces
Antenna Interface
2 x TNC, 50 ohm, female connectors
Single or dual antenna ports (with or without the use of external duplexer / filter)
Ethernet Interface
2, 3 or 4 ports 10/100 base-T Ethernet layer 2 switch using RJ45
Used for Ethernet user traffic and radio sub-network management.
RS-232 / RS-485 Interface
2, 1 or 0 RS-232 asynchronous ports using RJ45 connector
Optional 1x RS-232 or RS-485 asynchronous port using USB host port with USB to RS-232 or USB to
RS-485 converters
USB Interfaces
1 x Management port using USB micro type B connector
Used for product configuration with the Command Line Interface (CLI).
1 x Host port using USB standard type A connector
Used for software upgrade, diagnostic reporting and configuration save / restore.
Protect Interface
1x Protect interface port
Used for the Protected Station operation.
Alarms Interface
1x Alarm port using RJ45 connector
Used to provide 2 x hardware alarm inputs and 2 x hardware alarm outputs