SEFRAM SFX+NETWORK, Technical Notice

Page: 13 / 108

Technical Data Sheet FI 72.0239.0320E
Page 13 / 108
Cabling between CU card and a PC:
BATTERY REPLACEMENT
All of the settings/parameters and the history record are stored in memories safeguarded by two batteries
of type R6. Remove the central unit protection lid to gain access to these.
TAKE CARE WITH THE DIRECTION
The batteries enable the data to be retained for an estimated period of two years if the central unit card is
not powered (the period can vary depending on the power of the batteries used: calculated with 1.5Ah
batteries.
We recommend the periodic replacement of the batteries (once 2 years):
The batteries can be replaced with the powered central unit card: there will be no data loss. In this event,
take the necessary precautions (do not touch the electronic parts, the printed circuit tracks etc.).
If the central unit card is not powered, (the fact of) removing the batteries involves the loss of all of the
data/settings/parameters. The steps on the SELECT menu « SAVE CONFIG. » and « RESTORE
CONFIG. » can be used in this event: the settings/parameters are then recovered but the historical records
are lost nevertheless.
BATTERY R6 TYPE