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4.3 CPR32-NET operation with memory cards
CPR32-NET is equipped with built-in memory buffer with capacity for 240 000 events. During
normal operation of RACS 4 system, events can be automatically or manually uploaded to PR
Master software. Such upload results in clearing memory buffer of CPR32-NET.
There are situations, when event buffer with greater capacity is required. It could results from the
rare events uploading to PR Master or enormous generation of events in short time or because of
backup requirements.
CPR32-NET network controller can operate with optional memory card, which can be purchased
from Roger. Such card enables recording of 30 million events. The socket for card is shown in fig. 1
and it is located under CR2032 battery.
Switching between built-in flash memory and flash memory card in CPR32-NET can be done by
means of the PR Master option, which can be accessed in CPR32-NET properties i.e. PR Master-
>CPR32-NET->Configuration->Settings->Events buffer – see fig. 10.
Fig. 10 Events buffer option
4.4 Secure communication with CPR32-NET
4.4.1 Encrypted communication
The communication between PR Master software and CPR32-NET as well as among CPR32-NET
units in RACS 4 system unit is encrypted by means of AES128 CBC algorithm. By default null
password (empty) is used but it is recommended to specify own communication password during
configuration of CPR32-NET.
Communication password is defined by means of CPR32-NET webpage (menu: Passwords) where it
must be entered into following fields:
Communication password
and
Retype communication
password
–see fig. 11. Moreover the same password must be entered in PR Master software
(menu: Tools->Options->CPR32-NET – see fig. 12.
