Wheatstone D-8000, Technical Manual

Page: 53 / 169

page 6 – 4
D-8000 / Jan 2003
S T U D I O C O N T R O L M O D U L E
Hook-Ups
As stated before, all user wiring to and from the SCD-8 module takes
place at two DB-25 multi-pin connectors mounted directly beneath the
module on the console mainframe’s bottom pan.
Upper DB-25 Connector — Audio
Includes studio 1, studio 2 and (mono) talkback outputs. All audio
signals are analog, +4dBu balanced.
Pin 25 – TB Out SH
Pin 24 – TB Out HI
Pin 12 – TB Out LO
Pin 22 – Studio 2 Lt Out SH
Pin 21 – Studio 2 Lt Out HI
Pin 9 – Studio 2 Lt Out LO
Pin 8 – Studio 2 Rt Out SH
Pin 7 – Studio 2 Rt Out HI
Pin 20 – Studio 2 Rt Out LO
Pin 19 – Studio 1 Lt Out SH
Pin 18 – Studio 1 Lt Out HI
Pin 6 – Studio 1 Lt Out LO
Pin 5 – Studio 1 Rt Out SH
Pin 4 – Studio 1 Rt Out HI
Pin 17 – Studio 1 Rt Out LO
Upper DB-25 Connector — Control
The console’s Tally 2 and Tally 3 control ports are on the SCD-8
upper DB-25 connector. These are simple relay closures that activate
whenever programmed input modules are turned ON. The ports can be
used to control externally powered tally lights that requires a continuous
closure to function.
Pin 14 – Tally 2 Relay COM
Pin 1 – Tally 2 Relay N.O.
Pin 3 – Tally 3 Relay COM
Pin 15 – Tally 3 Relay N.O.
!
Typical DB-25
connector
Maximum current through
the tally relay closures is
2 amps @30VDC.