4RF Aprisa SR Plus Product Description - page 20
18 | Introduction
Aprisa SR+ Product Description
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 Interface
2, 1 or 0 RS-232 asynchronous ports using RJ45 connector
Optional 1x RS-232 asynchronous port using USB host port with USB to RS-232 converter
Used for RS-232 asynchronous user traffic only.
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 and diagnostic reporting.
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