Publication 2711P-UM001D-EN-P - September 2005
6-16 Terminal Connections
DH+ Network Connections
Use the Belden 9463 twin axial or equivalent cable (cat. no. 1770-CD),
to connect a terminal to a DH+ link.
You can connect a DH+ link in two ways:
• trunk line/drop line - from the drop line to the connector screw
terminals on the DH+ connectors of the processor
• daisy chain - to the connector screw terminals on the DH+
connectors on the processor
Follow these guidelines when installing DH+ communication links:
• do not exceed these cable lengths:
– trunk line-cable length: 3,048 m (10,000 ft)
– drop-cable length: 30.4 m (100 ft)
The maximum cable length is determined by baud rate.
• do not connect more than 64 stations on a single DH+ link
PanelView Plus 700-1500
PanelView Plus 400 and 600
DH+ Port on Communication Module
• 82 Ω terminating resistor for 230.4K
bits/sec
• 150 Ω terminating resistor for 57.6K
and 115.2K bits/sec
DH+ Port on Communication Module
• 82 Ω terminating resistor for 230.4K
bits/sec
• 150 Ω terminating resistor for 57.6K
and 115.2K bits/sec
Blue 3
Shield SH 2
Clear 1
Belden
To Controller
Clear 3
Shield SH 2
Blue 1
Belden
To Controller
Terminating Resistor
Terminating Resistor
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