Intermec EasyCoder PF2i Installation Instructions Manual page 29

Connector Confi guration (RS-485 Isolated on "uart2:" only)
DB-9 socket
1
2
3
4
5
6
7
8
9
5
GNDE
9
4
-DATA
8
3
7
2
+DATA
6
+5V (0.5 A)
1
if GND strap
fitted
RS-422 socket as seen from the outside.
Note: Th e increased use of LAN networks has made the RS-
485 interface somewhat obsolete, because RS-485 requires a
special communication protocol and a dedicated wiring system
limited to 1,200 m (4,000 ft). We only recommend RS-485
for existing applications and advice the customer to consider a
LAN network solution for new applications.
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
+DATA
–
–
GNDE Ground
–
–
-DATA
–
25