Intermec EasyCoder PF2i Installation Instructions Manual page 27

Connector Confi guration (RS-422 Isolated on "uart2:", "uart3:", or
"uart4:")
DB-9 socket
1
2
3
4
5
6
7
8
9
5
GNDE
9
4
-TXD
8
3
+RXD
-RXD
7
2
+TXD
6
+5V (0.5 A)
1
if GND strap
fitted
RS-422 socket as seen from the outside.
Double Serial Interface Kit Installation Instructions
Chapter 3 — Serial Interface "uart2:", "uart3:", and "uart4:"
Signal Meaning
External +5VDC max 500 mA (automatic switch-
off at overload, short-circuit protected) provided
strap is fi tted on J2:A which spoils the galvanical
isolation
+TXD +Transmit data
+RXD +Receive data
–
GNDE Ground
-
-RXD -Receive data
-TXD -Transmit data
–
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