On Wed, 13 Sep 2006 10:25:05 -0600, wrote:


anyone have the schematics for a mic pinout for the
Royce 619 40-channel base?

or if you happen to know please show me:


O O

O O


Bill

1 Switched side of mic element. Open on receive

2 Common side of mic element. Pin 2 is also connected via
switch to pin 4 on receive. Pin 2 is otherwise connected
to pin 3 on transmit

3 No connection on receive, connected to pin 2 on transmit

4 Connected to pin 2 on receive. No connection on transmit