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Preparing and Mounting Flat Connectors Section 4-3
4-3 Preparing and Mounting Flat Connectors
When you connect a Terminal Resistor to a Round Cable II cable, connect a
Flat Cable I or II cable to the Unit, or when you branch or extend the line, you
must prepare a Flat Connector and mount it on the cable.
Note (1) Flat Connectors are not reworkable. Once they are connected they can-
not be removed and connected again.
(2) Hold the Flat Connector body to plug in or pull out the connector.
(3) After connecting the Flat Connector, pull it lightly to confirm the connec-
tion is secured.
Connectors Used
Name Appearance Model Application
Flat Connector Socket DCN4-TR4 Used as a set with the DCN4-BR4 Flat Connector
Plug in the following applications:
• Extending the trunk line or sub-trunk lines.
• T-branching branch lines from the trunk line or
sub-trunk lines.
• T-branching sub-branch lines from a branch line.
Used independently when connecting a DCN4-
TM4 Terminating Resistor to the end of the trunk
line or a sub-trunk line.
Flat Connector Plug DCN4-BR4 Used as a set with the DCN4-TR4 Flat Connector
Socket in the following applications:
• Extending the trunk line or sub-trunk lines.
• T-branching branch lines from the trunk line or
sub-trunk lines.
• T-branching sub-branch lines from a branch line.
Used independently in the following applications:
• Connecting Communications Cable to a Unit.
• Connecting Communications Cable to a DCN4-
MD4 Multidrop Connector (when a multidrop con-
nection is used).
Flat Connector Socket DCN5-TR4 Used as a set with the DCN5-BR4 Flat Connector
Plug in the following applications:
• Extending the trunk line or sub-trunk lines.
• T-branching branch lines from the trunk line or
sub-trunk lines.
• T-branching sub-branch lines from a branch line.
Used independently when connecting a DCN5-
TM4 Terminating Resistor to the end of the trunk
line or a sub-trunk line.
Flat Connector Plug DCN5-BR4 Used as a set with the DCN5-TR4 Flat Connector
Socket in the following applications:
• Extending the trunk line or sub-trunk lines
• T-branching branch lines from the trunk line or
sub-trunk lines
• T-branching sub-branch lines from a branch line
Used independently to connect Communications
Cable to a Unit.
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