User`s manual

7
8 PHANTOM POWER jack
This 2.5mm PIN jack offers the ability to power Rocktron MIDI foot controllers
from a 7-pin MIDI cable which connects from the Rocktron MIDI foot controller
to the MIDI IN jack on the rear panel of the Voodu Valve. This eliminates the
need to find an AC outlet near where the footpedal would be placed during a
performance, or the need to run an extension cord out to the footswitch. Instead
of inserting the AC adaptor into the "POWER" jack of the footswitch as you
would normally, plug it into the "PHANTOM POWER" jack on the Voodu Valve.
This will power the Rocktron MIDI foot controller through pins 6 and 7 of the
MIDI cable connecting the two units. A 7-pin MIDI cable must be used and is
available from your Rocktron dealer.
9 MIDI IN jack
This 7-pin DIN connector must be connected to the MIDI OUT jack of the
transmitting MIDI device via a standard MIDI cable, or to the MIDI THRU jack
of the preceding device (if the Voodu Valve is within a chain of MIDI devices).
Pins 6 and 7 of this connector carry the phantom power to power a Rocktron
MIDI foot controller when a 7-pin MIDI cable is used.
10 MIDI THRU/OUT jack
This standard 5-pin DIN connector can be connected to the MIDI IN jack of
another device via a standard MIDI cable. There are limitations to the number of
devices that can be chained (or series connected) in this fashion.
Note: Inherently in MIDI there is a limit to the number of devices which can
be chained together (connected in series). With more than 3 devices, a
slight distortion of the MIDI signal can occur (due to signal degradation)
which can cause an error in MIDI signal transmission. Should this problem
arise, a MIDI Thru box can be used which connects directly to the MIDI
device which transmits MIDI information and has multiple connectors for
the multiple devices receiving MIDI. MIDI cables should not exceed 50 feet
(15 meters) in length.
11 POWER jack
This 4-pin DIN connector accepts power from the 9VAC adaptor supplied with
the unit.