55

4

4

3

3

2

2

1

1

D D

C C

B B

A ADMK Engineering Inc.

Copyright (c) 2010 DMK Engineering Inc.All Rights Reserved

This schematic is distributed in the hope that it will be useful, but

WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

www.dmkeng.com

200V MAX.

4A MAX.

URI

CAUTIONPin 14 is 5V DC output from USB bus. Power

from this pin will be on whenever the URI is

plugged into the computer. Be careful not to

short this pin to any other pin.

9080025 -

URI High Current PTT

A

1 1Saturday, March 20, 2010

Title

Size Document Number Rev

Date: Sheet of

Q12N3904

P1DB25M

13251224112310229218207196185174163152141

26

Q2IRLI620

PTT

R14.7K

R24.7K