Powerful Solutions for Digital Plants
MYNAH Technologies 504 Trade Center Blvd. Chesterfield, MO 63005 Telephone 636 681-1555 Fax 636 681-1660
www.mynah.com
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6.2 RS-422/485 Pin Assignments for DeltaV PSIC
Terminal Number Signal Description
1
Port 1 - Isolated Ground (GND)
2
Port 1 Half Duplex Data+/Full
Duplex
TXD+
3
Unused
4
Port 1 - Half Duplex Data -/ Full
Duplex
TXD-
5
Unused
6
Port 1 - Full Duplex RXD+
7
Unused
8
Port 1 - Full Duplex RXD-
9
Port 2 - Isolated Ground (GND)
10
Port 2 - Half Duplex Data+ / Full
Duplex
TXD+
11
Unused
12
Port 2 - Half Duplex Data-/ Full
Duplex
TXD-
13
Unused
14
Port 2 - Full Duplex RXD+
15
Unused
16
Port 2 - Full Duplex RXD-
