M2TECH Evo Supply - Manual (Page 6)

E vo
S UPPLY
LOW
NOISE
BATTERY
POWER
SUPPLY/CHARGER
REVISION
P r D
–
AUGUST
2012
Copyright © 2012, M2Tech Srl
6
M2Tec
h
www.m2tech.biz
2. Front Panel
1) Supply input. Apply 15V
DC
from the wall adaptor provided in the package. Another
power supply may be used if necessary, but user must be aware that in this case the
warranty is void. Tip is positive, ring is negative. A maximum current of 2A is necessary.
This input is protected against polarity inversion.
2) Charge mode switch. Allows for selection of two operation modes for the battery
charger included.
Select “BATTERY” to use the battery charge up to the complete depletion. The outputs will
be automatically switched off when the low voltage threshold is reached, to avoid an
excessive depletion which would damage the battery. Selecting this mode will avoid using
the internal low-noise regulator to power the devices for best performance, but operation
will not be uninterrupted.
Select “CHG/REG” to ensure uninterrupted operation. The battery will be used as primary
power source up to complete depletion. When reaching the low voltage threshold, the
battery charger will automatically enabled, the battery will be disconnected from the load
and the low noise regulator will provide power to the devices. The switchover is
transparent to the user. At the end of the charge process, the outputs will revert to the
battery. The low noise regulator has been designed to ensure very low noise, so the user
should hear very little differences between the battery and the regulator.
3) Outputs. Connect the supply cables provided in the package. Positive is the upper
hole, negative is the lower hole.
4) Output switch. Switches outputs on and off. It is advisable to switch outputs off when
the devices attached to the
E vo
S UPPLY are not in use, to avoid charge cycles which
shorten the battery life.
5) Power indicator. Turns on when the wall adaptor is connected to the
E vo
S UPPLY and
to a mains socket.
6) Charge indicator. Turns on when charge is in progress.