M-Audio Biport 2x4s [25/48] Mac driver installation

IMPORTANT: Only select the “Merge All” feature if your

MIDI application allows only one input to be selected at a

time in its MIDI setup. The “Merge All” can affect SMPTE

sync performance adversely because the MIDI Time Code

(MTC) from the SMPTE port must be merged with any other

MIDI data that is coming in on In-A or In-B. This incoming

MIDI data can “jitter” the MTC and make the timing look

irregular to the receiving MIDI application.

Mac Driver/OMS Installation

The BiPort OMS Driver is designed to run with Opcode’s “Open Music

System.” You will need the OMS application to use the BiPort 2x4s as a

multiport MIDI device. If you do not have Opcode’s OMS installed, or if

you are not using an application that supports OMS, you will not be able

to use the BiPort 2x4s. This is available as a free download from

Opcode’s website, and you will find a link to it on the drivers page of

the Midiman website.

To Install the BiPort on your Mac, first attach one side of the supplied

Mac serial cable (or any standard Mac serial cable) to the jack labeled

“Host In,” and the other side to either the printer or modem port on you

computer (for more information, consult the sections of the manual

titled “BiPort Installation” and “BiPort to Host Connection”).

Make sure that OMS has been successfully installed. After you are sure

that OMS is properly installed, go to the Control Panel or Chooser under

the Apple Menu, and make sure AppleTalk is turned off (this is recom-

mended, although OMS will sense that it is on and prompt you to turn it

off).

Mac Driver Installation

If you are installing your BiPort driver and configuring OMS for the first

time, follow these instructions to configure OMS. If you have a studio

setup already created in OMS and wish to create a new studio setup,

skip to the section below entitled “Installing with an existing Studio

Setup.”