page 3 – 5
D-75 / Sep 2004
STEREO LINE INPUT
Audio Connections — Digital Inputs (SRC-75)
These include A and B source inputs.
Pin 25 – AES A In SH
Pin 24 – AES A In HI
Pin 12 – AES A In LO
Pin 11 – AES B In SH
Pin 10 – AES B In HI
Pin 23 – AES B In LO
Control Connections — Analog and Digital Inputs
Functions include remote on and off, tally, ready, and start/stop for remote
source machines. The Start, Stop, Start/Stop Com, On Tally, and Tally B ports
are opto-isolated.
Pin 1 – Cough
Pin 2 – Ready
Pin 3 – Start
Pin 4 – Stop
Pin 5 – Start/Stop Com
Pin 6 – B Tally
Pin 14 – Remote On
Pin 15 – On Tally
Pin 16 – Remote Off
Pin 17 – TB to CR
Pin 18 – +5V Digital
Pin 19 – Digital Ground
To Turn the Module ON & OFF from a Remote Location
“Remote location” can also refer to a remote source machine that is feeding
its audio to the module in question. A contact closure (which may be sourced by
the external machine), will activate the module’s channel ON and OFF switches.
Unless otherwise noted, the remote functions are only active by default when
the A source is in use. But if the REM B setting is made on the PR-75 (see page
10-5) then the remote functions will also function when source B is used.
REMOTE ON — Activates the module’s channel ON switch. Momentarily
connect Pin 14 (Remote On) and Digital Ground (Pin19) to latch the module ON.
(User-supplied momentary contact switch required.)
REMOTE OFF — Activates the module’s channel OFF switch. Momen-
tarily connect Pin 16 (Remote Off) and Digital Ground (Pin 19) to latch the
module OFF. (User-supplied momentary contact switch required.)
COUGH — Temporarily Mutes the module. Provide a closure between
Pin 1 (Cough) and Digital Ground (Pin 19). This will turn the module OFF. Note
this is a non-latching mode; the module will turn ON again as soon as the closure
stops. (User-supplied momentary contact switch required.)
Typical DB-25
connector
D-75 / Jan 2008
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