Publication 2711P-UM001D-EN-P - September 2005
6-12 Terminal Connections
DH-485/DH+/Remote I/O
Module
Terminals with a DH-485/DH+/Remote I/O communication module
support communication with these networks:
• DH+ networks
• DH-485 networks
• Remote I/O networks
You can communicate with only one network at one time.
The 700-1500 terminals support all protocols on one module. The 400
and 600 terminals require a separate module for each protocol. The
DH+, DH-485 and Remote I/O connections are different between the
modules for the 400 and 600 and 700-1500 terminals.
Module Connections
IMPORTANT
See your controller documentation for appropriate
controller connections.
Allen
Bradley
DH485
1
2
3
4
5
6
3
2
1
DH+
RIO
Remote I/O
*
3. Clear
2. Shield/Drain
1. Blue
DH+
*
3. Blue
2. Shield/Drain
1. Clear
1. Earth Ground
2. Shield/Drain
3. Signal Ground
4. Channel B
5. Channel A
6. Termination Resistance
Status LED Indicator
700 - 1500 Terminals
400 and 600 Terminals
DH-485 Comm Module
DH+ Comm Module
*
Remote I/O (Single Rack) Comm Module
*
Blue
Clear
Shield/Drain
Blue
Clear
Shield/Drain
Comm. Connector
Programming
Connector
1. Data_H
2. Data_L
3. +24V DC Enable
4. Power 1
5. TX Enable
6. Shield
7. Ground
8. Power 2
Pin 1
Pin 8
DH-485 Module is
electrically isolated
from Network.
Pin 8
12
3
12
3
* Use a Belden 9463 twin axial or equivalent cable, cat. no. 1770-CD.
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