4RF Limited SRN0400025A ユーザーズマニュアル
Product Options | 29
Aprisa SR User Manual
Configuration Management
The Primary and Secondary radios are managed with the embedded web-based management tool,
SuperVisor (see ‘Managing the Radio’ on page 59) by using either the Primary or Secondary IP address.
Configuration changes in one of the radios will automatically be reflected in the partner radio.
SuperVisor (see ‘Managing the Radio’ on page 59) by using either the Primary or Secondary IP address.
Configuration changes in one of the radios will automatically be reflected in the partner radio.
To ensure all remote stations are registered to the correct (active) base station, changes to the Network
Table are automatically synchronized from the active radio to the standby radio. The Network Table is
only visible on the active radio. This synchronization does not occur if the Hardware Manual Lock is active.
Table are automatically synchronized from the active radio to the standby radio. The Network Table is
only visible on the active radio. This synchronization does not occur if the Hardware Manual Lock is active.
Switch Over
The switch over to the standby radio can be initiated automatically, on fault detection, or manually via
the Hardware Manual Lock switch on the Protection Switch or the Software Manual Lock from SuperVisor.
Additionally, it is possible to switch over the radios remotely without visiting the station site, via the
remote control connector on the front of the Protection Switch.
the Hardware Manual Lock switch on the Protection Switch or the Software Manual Lock from SuperVisor.
Additionally, it is possible to switch over the radios remotely without visiting the station site, via the
remote control connector on the front of the Protection Switch.
On detection of an alarm fault the switch over time is less than 0.5 seconds. Some alarms may take up to
5 seconds to be detected.
5 seconds to be detected.
The Protection Switch has a switch guard mechanism to prevent protection switch oscillation. If a switch-
over has occurred, subsequent switch-over triggers will be blocked if the guard time has not elapsed.
over has occurred, subsequent switch-over triggers will be blocked if the guard time has not elapsed.
The guard time starts at 20 seconds and doubles each switch-over to a maximum of 320 seconds and
halves after a period of two times the last guard time with no protection switch-overs.
halves after a period of two times the last guard time with no protection switch-overs.
Switching Criteria
The Protected Station will switch over operation from the active to the standby radio if any of the
configurable alarm events occur, or if there is a loss of the ‘keep alive’ signal from the active radio.
configurable alarm events occur, or if there is a loss of the ‘keep alive’ signal from the active radio.
It is possible to configure the alarm events which will trigger the switch over. It is also possible to prevent
an alarm event triggering a switch over through the configuration of blocking criteria.
an alarm event triggering a switch over through the configuration of blocking criteria.
Any of the following alarm events can be set to trigger or prevent switching from the active radio to the
standby radio (see ‘Events > Events Setup’ on page 137).
standby radio (see ‘Events > Events Setup’ on page 137).
PA current
Tx AGC
Tx reverse power
Thermal shutdown
Temperature threshold
Thermal shutdown
RSSI Threshold
RX Synthesizer Not Locked
Rx CRC errors
RF no receive data
Ethernet port 1 – no receive data
Ethernet port 2 – no receive data
Ethernet port 1 - data receive errors
Ethernet port 2 – data receive errors
Ethernet port 1 – data transmit errors
Ethernet port 2 - data transmit errors
Serial port – no receive data
Serial port – data receive errors
Component failure
Calibration failure
Configuration not supported
Protection Hardware Failure
It will not attempt to switch over to a standby radio which has power failure.
It will also not switch over to a standby radio with an active alarm event which has been configured as a
‘blocking criteria’.
‘blocking criteria’.