Voodoo Lab Pedal Power 2 Plus - Manual (Page 7)

If you have a pedal which has no power jack at all, but it runs on a
single 9V battery, you can still power it using your Voodoo Lab
Pedal Power. Use the cable with the 9V battery snap on one end.
This will mate with the battery snap inside your pedal once its
battery has been removed.
Voltage Selector DIP Switches
On the bottom of the Pedal Power is an 8 position DIP switch with
switches numbered 1-8. These switches correspond to outputs 1-8
and select the output voltage. Normally, the switches should all be
in the NORMAL position for 9 volt operation.
Boss Pedals
There are two types of Boss pedals. These are identified by the type
of power supply specified, either PSA or ACA. Almost all Boss
pedals specify the PSA type adapter and operate at 9V like most
other pedals. Boss pedals which specify the ACA type adapter
operate at a higher voltage. When powering Boss pedals that require
ACA adapters you must use outputs 1-4 only and switch the
corresponding voltage selector DIP switch away from NORMAL.
Boss Twin pedals, like the DD-20, have a higher current require-
ment and will operate from outputs 5 and 6 only. Leave the
corresponding switch in the NORMAL position.
Line 6 Modeling Pedals
You can power the Line 6 modeling pedals (but not POD) using
outputs 5 or 6 and setting the corresponding switch away from
NORMAL. Remember to use the RED 5.5x2.5mm barrel cable for
these pedals.
Line 6 Tone Core pedals can be powered from any output with
its switch in the NORMAL position, using the black 5.5x2.1mm
barrel cable.