Maple Systems HMI5000 Series Installation Manual page 16

16
This diagram illustrates the proper pin connections for the HMI5043N/T
serial port:
Figure 8: HMI5043N/T Serial Port Pin outs
DE9P
COM1
Pin#
(RS-485 2 wire)
1 TX/RX–
2 TX/RX+
3
4
5
6
7
8
9
1010-1005 Rev 04
COM1
(RS-485 4 wire)
RX–
RX+
TX–
TX+
Signal Ground
Maple Systems Inc.
th
808 134 Street SW, Suite 120
Everett, WA 98204-7333
Phone: (425) 745-3229
Email: maple@maplesystems.com
Web: www.maplesystems.com
© 2010 Maple Systems Inc. All rights reserved.
HMI5000 Series Installation Guide
COM1
(RS-232) (RS-485 2 wire)
TXD
TX/RX–
TX/RX+
RXD
COM3
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