Package Contents; Basic Theory Of Operation; Midi Modes - M-Audio Portman 4x4 Manual

Package Contents

Included in the PORTMAN 4x4/S package should be:
• The PORTMAN 4x4/S interface unit.
• DB-25 to Centronics parallel cable.
• DC 9v 500 ma power supply (US only).
• This instruction manual.
• A drivers, applications and diagnostics disk.

Basic Theory of Operation

MIDI Modes

The PORTMAN 4x4/S has two modes of operation: Patchbay
and Interface. The current mode is indicated by the indicator
LED's on the left front of the box. The PORTMAN 4x4/S will
always power up into Patchbay mode. Mode switching is accom-
plished via software command (i.e. by Windows drivers or DOS
diagnostics).
In Interface mode, the PORTMAN 4x4/S operates as a dedicated
multi-port interface with 4 independent inputs and 4 independent
outputs. MIDI patching is controlled by the MIDI application(s)
on the host computer. To use the PORTMAN 4x4/S as a MIDI
interface, turn off your computer's power and the PORTMAN
4x4/S power, connect the PORTMAN 4x4/S to the computer with
the supplied cable, power up the PORTMAN 4x4/S, and finally
power up the computer.
In Patchbay mode, the MIDI inputs are routed to MIDI outputs
according to 32 different user programs. A user program specifies
the routing/merging between MIDI inputs and outputs. Any of
the 4 MIDI Ins may be routed to any or all of the 4 MIDI Outs
simultaneously. If multiple Ins are assigned to a single Out, then
the PORTMAN 4x4/S automatically merges the MIDI messages.
The user programs are set up and managed by the provided
Remote Control software. Once the Remote Control software
stores the user programs to the PORTMAN 4x4/S, the programs
are stored internally in the PORTMAN 4x4/S and will remain
intact even with the power off.
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