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English Manual
Do I need to use the power supply?
Thanks to smart power control, the use of the supplied external power supply is optional for
most applications because the LINDY Console Switch can be configured to derive its power
from the host system.
The following two main factors will determine whether you can use the LINDY Console Switch
with, or without the power supply:
1: Lengths of cables to host computer and to consoles
A. All cables 2m or less -> Power supply not required
B. Any cables 2.2m or more -> Power supply required
2: Power required by all connected keyboards and mice
A Total requirement is 400mA or less* -> Power supply not required
B Total requirement is 420mA or more* -> Power supply required
If either of the above factors meets the B scenario, then you need to use the power supply.
* How to check power requirements
You can determine the overall power required by the connected keyboard and mice by
consulting their product labels. On the underside of almost all keyboard and mice will be a label
stating their power requirements.
This figure is usually represented as a voltage (e.g. 5V) and a current (e.g. 20mA).
• Most standard keyboards require around 50mA
• Most standard mice require around 20 - 25mA.
Add up the total current requirements for all connected devices. If the total value is 400mA or
less then you do not need to use the power supply (subject to the cable lengths being 2m or
shorter).