Rocktron Blue Thunder - Manual (Page 9)

4. Rear Panel
1 INPUT jack
This standard ¼" mono jack provides input to the Blue Thunder.
2 RIGHT CHANNEL OUTPUT jack
This standard ¼" mono jack provides an output for the right channel of the Blue Thunder. When using
the unit in a mono application either jack may be used
3 LEFT CHANNEL OUTPUT jack
This standard ¼" mono jack provides an output for the left channel of the Blue Thunder. When using
the unit in a mono application either jack may be used.
.
4 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 Blue Thunder
™ . 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 Blue Thunder
™ . This will power the Rocktron MIDI foot
controller through pins 6 and 7 of the MIDI cable connecting the two units. The Rocktron RMM900 7-
pin MIDI cable must be used in this operation and is available from your Rocktron dealer.
5 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 MIDI device (if the Blue
Thunder
™ is within a chain of MIDI devices). Pins 6 and 7 of this connector carry phantom power to
power a Rocktron MIDI foot controller (MIDI XChange, All Access and MIDI Mate) when a 7-pin
MIDI cable is used.
6 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.
7 POWER jack
This 2.5mm pin jack accepts power from the 9VAC adaptor supplied with the unit.
6