
I N S T A L L A T I O N a n d P O W E R
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A-5000 / Nov 98
Wiring Procedure - Double Connection to One Pin
ref: DB-25 male multi-pin connector
Most audio equipment machine interfaces (as well as Wheatstone consoles)
use subminiature D-type connectors. Sometimes the interfaces require making
two connections to a single DB pin. If the wiring has been set up using
punchblocks, this is not a problem; however, for situations where direct machine-
to-console wiring is used, Wheatstone recommends the following procedure:
1) Connect the first wire to the desired pin as you normally would.
2) Note connector pins may easily be removed from the DB-25 shell with the wire still
attached: Hold the connector with the metal part down and observe its side. You
will see a row of "Vees"—simply press the top of the selected vee together with a
scribe or other sharp instrument; this will unlock the pin from the shell, allowing it
to be removed.
3) With the pin removed, strip out a short section of insulation from the connected wire
and wrap and solder the second wire to the first as shown above.
4) A short piece of heatshrink tubing (pictured here before being slid into place) com-
pletes the connection.
5) Re-insert the pin into the DB-25 shell, spreading the vee apart to lock it in place.