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4.4. Attack from remote

An attack from remote, meaning from outside the local REF network, should

be prevented. Therefore, unauthorized users should not be able to get access

to REF 542plus. A remote attack is only possible when the devices are

connected to company intranet or Internet. Installing the IPSec function is

recommended.

4.5. Number of devices allowed per subnet

The number of devices per subnet is limited. The limitation is set to 254

devices.

The practical subnet size should be defined by the application and have a

practical size of 10 devices. In case a GSM Modem is connected, one device

per total network is sufficient.

1MRS755865

Multifunctional Protection and Switchbay

Control Unit

Installation Manual for Web Interface

Installation manual

REF 542plus

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