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Connecting Cables and Terminating Resistor
3-4
Connecting Cables and Terminating Resistor
Peripheral Devices Used
Name
Open Type Connector (for
connecting Units)
Relay terminal block
Multidrop Connector
Terminating Resistor
Terminating Resistor
Terminating Resistor
Terminating Resistor Specifications
Type
Model
Resistance
Rated power
Accuracy
Capacity between power supply lines 0.01 µF
3-4-1
Connecting Communications Cable to Slave Units and Repeater
Units
Connecting Round
Cable I/II
64
This section describes how to connect Flat Cable I/II or round cable I/II to
Slave Units, Repeater Units, and Terminating Resistors, and how to extend or
branch the cables.
Appearance
DCN4-TB4
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Commercially available Used for T-branching round cable I or round
DCN4-MD4
DCN4-TM4
DCN5-TM4
DRS1-T
DCN4-TM4
121 Ω
1/4 W
1% max.
The DCN4-TB4 Open Type Connector is used to convert the communications
connector on the Slave Unit or Repeater Unit to a terminal block (M3) for con-
necting the cable wires.
Model
Converts the Unit's communications con-
nector into a screw terminal block to enable
connecting round cable I or round cable II to
a Slave Unit or Repeater Unit.
cable II.
Used to connect Slave Units or Repeater
Units to trunk lines, sub-trunk lines, or
branch lines by using multidrop connec-
tions.
This is a Connector-type Terminating Resis-
tor for Flat Cable I and round cable II.
It is connected to a DCN4-TR4 Flat Connec-
tor Socket at the end of a trunk line or sub-
trunk line.
This is a Connector-type Terminating Resis-
tor for Flat Cable II.
It is connected to a DCN5-TR4 Flat Connec-
tor Socket at the end of a trunk line or sub-
trunk line.
This is a Terminal Block-type Terminating
Resistor for round cable I.
It is connected to the end of a trunk line or
sub-trunk line round cable I.
Connector
DCN5-TM4
121 Ω
1/4 W
1% max.
0.01 µF
Section 3-4
Application
Terminal block
DRS1-T
121 Ω
1/4 W
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