Rs-232 To 20 Ma; Converter Schematic - Intel iUP-200A User Manual

Refer to Figure D-l to build your own RS-232 to 20ma converter. Keep the con­
nections between MDS 800 and the converter as short as possible because the
power supply is derived from the Intellec 800 through the TTY connector.
M D S -800
T T Y C O N N E C T O R
RX DAT
RET
T X DATA
S IG G N D
T X DATA
RET
RX DATA
Figure D - l R S -232 to 20m a Converter S ch em atic
APPENDIX D

RS-232 TO 20 ma

CONVERTER SCHEMATIC

D - l / D - 2