Rear Panel; Power; Bypass/Advance Footswitch; Midi In - Alesis 4 Reference Manual

Chapter 5 – Description of Controls

Rear Panel

Power

This is a plug for connecting the +9VAC power supply (supplied). The power supply
is then connected to an AC outlet delivering a nominal 120VAC. The correct power
supply must be used AT ALL TIMES. Any other power supply might create a fire
risk and/or permanently damage your unit. This damage would NOT be covered
under your warranty.

Bypass/Advance Footswitch

This is a 1/4" phone jack which connects to a footswitch, either normally-open or
normally-closed. This footswitch can perform either one of two functions: Bypass or
Advance. The function is selected from the UTILity mode.
• When set to the Bypass function and the footswitch is pressed, the signal will
bypass the effects chain allowing an instant comparison between the dry and wet
signal. The red [BYPASS] LED on the front panel will illuminate.
• When set to the Advance function and the footswitch is pressed, the currently
selected program number is advanced by one. When 127 is reached it will roll-
over to 00.
Note: The footswitch can also be used in conjunction with the Auto Level feature to
extend the input level sensing time. Normally the input sensing discontinues five
seconds after it has been activated. However, if the footswitch is held down anytime
during input level sensing process, the Auto Level function will continue sensing the
inputs indefinitely until the footswitch is released. When this is done the footswitch
will not perform its normal function, whether set to Bypass or Advance mode. Once
the footswitch is released and level sensing ceases, the footswitch returns to its
assigned function.
For more information about the Auto Level function see "INPUT and OUTPUT
Buttons", earlier in this chapter.

MIDI In

This is a 5 pin DIN standard MIDI plug which connects to any MIDI compatible
equipment such as a MIDI sequencer that will send program changes and controller
information to the unit.

MIDI Out/Thru

This is a 5 pin DIN standard MIDI plug which connects to any MIDI compatible
equipment such as a keyboard or another effects device. Provided for sending MIDI
program change commands as well as sending system exclusive commands for
storing programs. It also relays all messages received on the [MIDI IN] if MIDI THRU
is enabled. The MIDI THRU function is found in the UTILity mode (see "UTILity
Button", earlier in this chapter).
Input (Left/Ch.1 & Right/Ch.2)
MidiVerb 4 Reference Manual 49