Boss DD-200 Owner's Manual page 7

Using the jack as EXP
You can connect an expression pedal (sold separately:
EV-30, Roland EV-5, etc.) and use it to control the delay
time or the volume of the effect sound (p. 12).
* Use only the specified expression pedal. By connecting any other
expression pedals, you risk causing malfunction and/or damage
to the unit.
D
DC IN jack
An AC adaptor (sold separately: PSA-seriesS) can be
connected to this jack.
* Use only the specified AC adaptor (sold separately: PSA-seriesS) and
plug it into an AC outlet of the correct voltage.
* If the AC adaptor is connected while power is on, the power supply
is drawn from the AC adaptor.
Side Panel
(Connecting Your Equipment)
E
E
MIDI jacks
Use a TRS/MIDI connecting cable (sold separately:
BMIDI-5-35) to connect an external MIDI device. You can
use an external MIDI device to switch the memories of
this unit.
* Do not connect an audio device here. Doing so will cause
malfunctions.
F
USB port
Connect your computer using a commercially available
USB cable that supports USB 2.0.
* Do not use a micro USB cable that is designed only for charging a
device. Charge-only cables cannot transmit data.
* This is used only for program updates.
Panel Descriptions
F
7