Managing the Radio | 221
Aprisa SRx User Manual 1.3.0
TERMINAL PROTECTION
Protection Type
The Protection Type defines if a radio is a stand-alone radio or part of an Aprisa SR Protected Station. The
default setting is None.
Option
Function
None
The Aprisa SR radio is a stand-alone radio (not part of an Aprisa SR
Protected Station).
Redundant
(Protected Station)
The Aprisa SR radio is part of an Aprisa SR Protected Station.
The RF ports and interface ports from two standard Aprisa SR
radios are switched to the standby radio if there is a failure in the
active radio
Monitored Hot Standby
(Protected Station)
Set to make this Aprisa SR radio part of an Aprisa SR Protected
Station.
The RF ports and interface ports from two standard Aprisa SR
radios are switched to the standby radio if there is a failure in the
active radio.
The standby radio is monitored to ensure its correct operation
should a switch-over be required. See ‘Monitored Alarms’ on page
270 for the list of monitored alarms.
Serial Data Driven Switching The Aprisa SR radio is part of an Aprisa SR Data Driven Protected
Station.
Provides radio and RS-232 serial port user interface protection for
Aprisa SR radios.
Automatic Periodic Switch Duration
The Automatic Periodic Switch Duration sets the time interval for automatic switch-over from the active
radio to the standby radio.
This feature will automatically switch-over from the active radio to the standby radio if there are no
alarms preventing the switch-over to the standby radio. It can be used to provide confidence that the
standby radio is still operational maybe after many days of standby operation.
The maximum number of days that can be set is 49 days.
The default setting is 0 which disables the automatic switch-over feature.
PROTECTION MANAGEMENT IP ADDRESS
Primary Address
This parameter shows the IP address of the primary radio (usually the left side radio A).
Secondary Address
This parameter shows the IP address of the secondary radio (usually the right side radio B).
