Owner`s manual

page 9 – 7
RD-12 / March 99
SUPERPHONE INPUT
Pin 1 – To Hybrid 2 Out SH
Pin 3 – To Hybrid 2 Out HI
Pin 2 – To Hybrid 2 Out LO
Pin 5 – Start/Stop Common
Pin 7 – Stop AMP D connector
Pin 9 – Start
Pin 6 – Start/Stop Common
Pin 8 – Stop
Pin 10 – Start
The last six callouts are simply two parallel-connected sets of pins
for the same control port. When the module’s ON switch is pressed, a
closure takes place between start/stop common and START; when the
module’s STOP switch is pressed, a closure takes place between start/
stop common and STOP. These may be used to control a remote tape
machine for recording phone segments. Note that these are opto-
isolated outputs; the START/STOP COMMON connections are the
emitters, while the START and STOP connections are the collectors,
of the opto’s NPN transistors. Correct polarity must be observed when
using these outputs.
Key diagram showing
back of typical 12-pin I/O
connector plug, with pin
numbers oriented as they
would be seen while wir-
ing. Beveled corners cor-
respond to PCB mounted
mating sockets.
5 46
8 79
11 1012
2 13