Studio Technologies 58 1998 - Manual (Page 8)

Issue 2, April 1998 Model 58/59 User Guide
Page 8 Studio Technologies, Inc.
for Surround
“reference” signal, and is not affected by
the monitor output’s level-control circuitry.
The inputs, inserts, and monitor outputs
are electronically balanced, while the
meter outputs are unbalanced. Fifteen-turn
trim potentiometers are used to precisely
calibrate the input, insert return, and moni-
tor output signals. Audio input, insert, and
output connections are made using three
25-pin D-subminiature connectors. The
connectors follow an industry-standard
multi-channel wiring scheme. Two 9-pin
D-subminiature connectors are used in a
simple loop-through arrangement to con-
nect the Model 58 to a Model 59 Control
Console, as well as to additional Model 58
units.
An 8-bit micro-controller provides the logic
“horsepower” for the Model 58. DIP
switches are used to select the Model 58’s
unit ID and operating mode. AC mains
power is connected directly to the Model
58, which is factory selected for 100, 120,
220/240V operation. The internal power
supply utilizes a toroidal mains transformer
for quiet audio operation.
Model 59 Control Console
The Model 59 Control Console is a com-
pact, self-contained unit designed to be
located at the operator’s position. It allows
fingertip control of all monitoring param-
eters. Numerous LEDs provide complete
status information. The Model 59 supports
up to eight output channels, and up to
four, 8-channel input sources. The actual
Figure 1. Model 58 Central Controller Front Panel
Figure 2. Model 58 Central Controller Back Panel
Power
present LED
Monitor out
trim pots
Data
active LED
Configuration
DIP switches
Insert 2
return trimpots
Insert 1
return trimpots
Input
trimpots
To/from
Model 59
Control
Console
AC mains
connection
Loop thru
connector
to additional
Model 58
Input
connections
Insert
connections
Output
connections