Automatic Redundancy - Bosch Security Escort SE2000 Series Technical Reference Manual

Security Escort
7.3.1

Automatic redundancy

Automatic redundancy kicks in during the following circumstances:
1.
2.
3.
4.
7.3.2 Manual redundancy
Manual redundancy is only applicable to the following circumstances:
1.
2.
Bosch Security Systems B.V.
Master computer information is not configured in slave computer – If the master
computer's related information is not configured in the slave computer, the slave
computer will consider the master computer as unavailable. As such, the control of
devices will switch to the slave computer automatically.
Master computer not reachable from slave computer – If the master computer's related
information is configured in the slave computer, but the slave computer is unable to
connect to the master computer, the slave computer will keep attempting to connect for
10 consecutive times. If the slave computer is still unable to connect to the master
computer, the control of devices will switch to the slave computer automatically.
Master computer not responding – The slave computer will send "heart beat" messages
to the master computer every second. The master computer will acknowledge each "heart
beat" messages to the slave computer. If the slave computer did not receive 6 continuous
"heart beat" acknowledgements from the master computer, the slave computer will
consider the master computer as unreachable. As such, the control of devices will switch
to the slave computer automatically.
Master computer acknowledges "heart beat" message – The slave computer will send the
"heart beat messages" continuously. Once the slave computer receives the "heart beat"
acknowledgement from the master computer, the slave computer will consider the
master computer as being back in operation. As such, the slave computer disconnects all
the devices and requests the master computer to take control of the devices.
RS232 connected to either master or slave computer – Switch the RS232 connection
manually to the other computer.
Newly RS232 connected computer takes control – The newly RS232 connected computer
will inform the other computer to lose their control. The other computer will disconnect
all the devices. The newly connected RS232 system will connect and take control of the
devices.
Technical Reference Manual
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2019.08 | V2.18.1.6 | DOC