Intermec EasyCoder 501 E Installation & Operation Manual page 148

RS-422/485 Inter-
face Board, cont.
"uart3:"
Intermec EasyCoder 501 E – Installation & Operation Ed. 1
"uart3:" Serial Port
The communication port "uart3:" uses a DB-25pin male connector.
Pin
1
2
3
4
0
5
230V
6
7
8–15
16
17–19
20
21–25
1
/. Enabled by a strap being fi tted on P-6.
2
/. DTR permanently high.
Refer to the installation instructions for the RS-422/485 Interface
Board for further information.
Signal Name Description
GNDC Chassis ground
TXD RS-232 Transmitter
RXD RS-232 Receiver
RTS RS-232 Request To Send
CTS RS-232 Clear To Send
DSR RS-232 Data Set Ready
GNDI Signal Ground
Not connected
+5VEXT 5 VDC for external use (max. 200 mA)
Not connected
DTR RS-232 Data Terminal Ready
Not connected
Appendix 4 Interfaces
1
2
147