SWITCH 3
RTS ON
1
EXTERNAL RTS
X 
RTS ON AT ALL TIMES
BUFFER
2
USE RTS/CTS CONTROL 
X 
USE BUFFER
RTS ON
3 4
4 WIRE CABLE 
X 
X 
2 WIRE CABLE
B1474 | BARNETT ENGINEERING LTD. | PAGE 18 |
SWITCH 3
1
EXTERNAL RTS
X RTS ON AT ALL TIMES
BUFFER
2
USE RTS/CTS CONTROL X USE BUFFER
RTS ON
3 4
4 WIRE CABLE X X 2 WIRE CABLE
B1474 | BARNETT ENGINEERING LTD. | PAGE 18 |
