Configuration Events; Communication Security Events; Communication Channels - Secure Liberty 100 Technical Reference Manual

5.16.9 Configuration Events

The meter records the following changes in its configuration event log:
● Receipt or activation of meter configuration
● Change of operating modes - Prepay or Credit
● Profile configuration
● Configuration of events
● Time setting
● Cancellation of delayed meter configuration
● Configuration, enabling or disabling of DST*
● Setting the payment card ID and Site ID
● Receipt or activation of meter firmware
● On demand billing
● Completion of installation
● Change in System Parameter setting
● Counter reset
● Data restriction setting
● Demand limit configuration
● Debt setting
● Receipt or activation of change of supplier request
● Receipt or activation of change of tenancy request
* Supply failure will interrupt the recording of DST configurations.
If configured, the meter can send alerts to the HES for all the above events.

5.16.10 Communication Security Events

The following attempts made from unauthorised source are recorded in the communication security event log
along with their start date and time:
● Commands sent with a wrong authenticator.
● Requests for authorisation with a wrong password.
● Data requests sent without authorisation.
The meter records the number of unauthorised attempts. In every 15 minutes, the meter will log persisting
unauthorised attempts and if configured, can send alerts for such events to the HES.
The meter will resume its normal operating mode and begin processing commands if no unauthorised attempts
are detected for 15 minutes.
5.17

Communication Channels

Liberty 100 with the Skyline-i 510 communication hub has the following communication channels:
● IEC 1107 optical port - this port, fitted on the meter is designated as Port-1 and is used to communicate
with the meter locally. The port supports a maximum data rate of up to 9600 baud and can be used
during the installation process, for downloading a tariff into the meter or reading consumption data and
other information locally with an 1107 probe. This port can be enabled or disabled using a service
UTRN.
● ZigBee module - the ZigBee 2.4 GHz low-power radio facilitates communication between other HAN
devices such as a gas meter or IHD. ZigBee ZSEP1.1 with SSWG extensions is supported.
Page 48 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02