Doepfer R2M Midi-Ribbon-Controller - Manual (Page 5)

R2M User's Guide V1.11 Page 5
Connections
n Power Supply (9V DC 250 mA)
R2M does not have a built-in power supply. Instead it uses a plug-in type external
power supply (AC adapter). One reason for this feature is electrical safety. Keeping
danger voltages (mains) out of the R2M increases the electrical safety. Another
reason for the external power supply is the fact that line voltages and plug types vary
considerably from country to country. Using a plug-in external supply the R2M can be
used anywhere with a locally purchased power supply, thus keeping the retail price
down.
In Germany a VDE approved power supply is included with the R2M. In other
countries a power supply with suitable mains voltage and mains connector has to be
purchased separately by the user provided that the dealer resp. representative does
not enclose the power suppy. The power supply must be able to deliver 7-12 VDC
unstabilized voltage, as well as a minimum current of 250mA. The correct polarity of
the DC voltage connector is: outside ring = GND, inside lead = +7...12V. An external
power supply of high quality and safety should be used.
The R2M is switched ON by plugging the AC adapter into a wall outlet and
connecting it to the appropriate jack of the R2M. There is no separate ON/OFF
switch. If the polarity of the power supply is incorrect, the R2M will not function.
However, there is no danger of damage to the circuitry since it is protected by a
diode.
o Manual connector (Ribbon Contr.)
The manual is connected to the control box with the 4-pin cable that is included.
MIDI IN MIDI OUT
Gate CV2 CV1 Ribbon 9V DC
OUT OUT OUT Contr. 250mA
Fig. 2
p o n q r
s t
1
Even though the same type of connector as for USB is used it is not
allowed to connect the control box or the manual to any USB device!
Both the USB device and the controller or manual will be damaged !
In this case the warranty will be void ! We will not compensate any
damage caused by ignoring this direction for use.