OPCODE STUDIO 4 Instruction page 17

SMPTE IN Jack
This jack receives SMPTE timecode from
a tape deck or other SMPTE source. The
Studio 4 converts the SMPTE input into
the MIDI format specified by the Stripe
SMPTE window (see Chapter 10).
SMPTE OUT Jack
This jack outputs SMPTE timecode gen-
erated (or regenerated) by the Studio 4.
This jack is normally connected to the line
input of a tape deck. You may set the
SMPTE output level in the Stripe SMPTE
window (See Chapter 10).
Computer Ports and Thru Ports
The Studio 4 does not implement the tra-
ditional Macintosh MIDI interface
concept of a "Printer port" and a "Modem
port". Older interfaces have a limit of 32
addressable MIDI channels; 16 on the
Printer port and 16 on the Modem port.
Each Studio 4, however, can address up to
128 separate MIDI channels spread
across its two serial inputs. These input
ports are labeled "A" and "B". The inputs
(with the little Macintosh icons) connect
to the Macintosh using standard 8-pin
mini-DIN cables (supplied by Opcode
with the Studio 4).
You may connect the Studio 4 "A" port to
either the Macintosh Modem port or
Printer port. You may connect the
Studio 4 "B" port to the Modem port, the
Printer port or to another Studio 4 to form
a network. You can also connect two Mac-
intosh computers to one or two Studio 4's
Studio 4 Manual
CHAPTER 2: Panel Descriptions
(See "Computer Connections" in
Chapter 3).
You cannot use the "A" port for network-
ing. As a matter of convention, you may
wish to connect "A" to the Modem port,
leaving the "B" port free for connecting
the Macintosh's Printer port, another
Macintosh or another Studio 4.
Attach external peripherals (such as a
printer or modem) to the "A THRU" and/
or "B THRU" ports on the Studio 4. You
can use these peripherals without discon-
necting the Studio 4 from the Macintosh.
Simply use the corresponding front panel
Thru switch to route data arriving at one
of the Studio 4 computer ports to its corre-
sponding THRU port (see "Thru
Switches" earlier in this chapter, and
"Computer Connections" in Chapter 3).
MIDI OUT Connectors
Connect these eight ports to the MIDI IN
ports of your MIDI devices. Each port has
dual numbers that correspond to the posi-
tion of the 1-8/9-16 switch on the front
panel.
MIDI output ports 7/15 and 8/16 are
duplicated on the front panel. If you con-
nect devices to both a front panel MIDI
output and its corresponding rear panel
output, MIDI data is sent to both devices.
MIDI IN Connectors
Connect these six ports to the MIDI OUT
ports of your MIDI devices. Each port has
dual numbers that correspond to the posi-
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