IT Baseline Protection Manual - The Information Warfare Site

Safeguard Catalogue - Hardware & Software Remarks
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S 4.31 Ensuring power supply during mobile use
Initiation responsibility: IT-user
Implementation responsibility: IT-user
In order to be able to maintain the power supply of a portable PC also during
mobile use, the common practice is to use batteries. Depending on the
capacity of the batteries and on the type of laptop PC, this will suffice for a
limited period of time, e.g. several hours. To prevent loss of data held in
volatile store after an operating voltage drop, some general requirements
should be met:
- the warning signals (where available) of a laptop, which indicate a voltage
drop, must not be disregarded; in the given cases, data backups should be
made in good time;
- if prolonged mobile use can be foreseen, rechargeable batteries must be
recharged in advance and, where required, charged spare batteries must be
kept on hand;
- when handing a mobile IT system over to someone else, sufficient charging
of the batteries must be ensured.
- optionally, the charger power pack can be carried.
In addition, it is advisable to save the processed data on a non-volatile storage
medium at short intervals during mobile use of the IT system. For this
purpose, also automatic storing provided by standard programs may be used.
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IT-Baseline Protection Manual: Oktober 2000