Studio Technologies 212 2013 - Manual (Page 31)

Model 212 User Guide Issue 5, May 2013
Studio Technologies, Inc. Page 31
available that provide from three to seven
contacts. For example, a compatible 3-pin
female connector would be Neutrik part
number NC3FD-L-1. To support headsets
the NC6FDS-L-1 is often used. This is a
6-pin female connector with the unique
Switchcraft® 6-pin arrangement. The hard-
ware that secures the blank plates to the
Model 212’s back panel is also intended to
secure the replacement connectors.
If connectors are installed in the Model
212’s spare connector locations adding
labels to those connectors can be helpful.
For a great look it is recommended that
Brother® P-Touch ¼-inch (6 mm) labels be
created. Tape material that prints white text
on a black background works out well for
the Model 212. The Brother label cassette
number TX-3151, white on black, is appro-
priate for use with many of their printers.
In addition to the spare connector loca-
tions on the back panel, provision has
been made to allow easy interconnection
with the Model 212’s printed-circuit-board-
mounted input and output connectors. This
was accomplished by including numerous
3-position male “header” connectors on
the Model 212’s circuit board. These head-
ers, on 0.1-inch centers, are wired in paral-
lel with the Model 212’s connectors. This
“no solder” solution makes customizing
a Model 212 a simple process. The head-
ers, located on the Model 212’s printed
circuit board, are Molex® part number
22-23-2031. They mate with Molex housing
number 22-01-3037. To make the intercon-
nection separate crimp terminals are at-
tached to loose wires and then “snapped”
into the housing. Molex part number 08-50-
0114 specifies crimp terminals that are ap-
propriate for wires of 22 to 30 gauge. These
parts are available worldwide from sources
such as Digi-Key (www.digikey.com).
To make the process of connecting to the
Model 212’s headers a simple task an
interface cable kit, part number 31087,
is available from Studio Technologies.
Each kit includes five cable assemblies
and a length of heat-shrinkable tubing.
Each cable assembly consists of a mating
connector with three color-coded wires
attached. These wires, approximately 12
inches in length, allow convenient solder-
ing to a connector selected to be installed
in a spare location on the Model 212’s
back panel. For reference, the wire color
for pin 1 is gray, pin 2 is yellow, and pin 3
is blue.
The heat-shrinkable tubing is provided so
that connector solder cups can be insu-
lated from each other. It will also provide
some strain relief to the solder joints. Be
certain to slip the desired length of tubing
over the wire prior to soldering a connec-
tion! (If the writer had a dollar for every
time he forgot to put tubing on a wire—or
slip on a connector shell—before making
a solder connection…)
The Model 212’s enclosure must be dis-
assembled prior to installing connectors
in the spare locations. Four hex-head
machine screws, two on the bottom front
of the enclosure and two on the back
panel, must be removed. A 5/64-inch hex
driver is required. The cover can then
be carefully separated from the chassis,
remaining attached by means of a flexible
cable assembly. This “flex-cable” assem-
bly links the main printed circuit board
assembly with the board assembly that
contains the pushbuttons and LED indi-
cators. Ensure that the flex cable is not
damaged while the Model 212 is being
customized. For easier access, the push-
button/LED board assembly can also be
easily removed.