Omron CS1W-CRM21 - Page 92

70
Connecting Cables Section 4-2
Multidrop
Connections
Round Cable I or II A DCN4-TB4 Open Type Connector is attached to the communications con-
nector of a Slave Unit or a Repeater Unit. This converts the communication
connector to a M3 screw terminal block. Then the cable wires are connected
to the Connector.
■ Example for Round Cable I
■ Mounting Procedure
1,2,3... 1. To mount a DCN4-TB4 Open Type Connector on the communications con-
nector of the Unit, orient the Open Type Connector so that the opening side
of the terminal cover is facing to the left, and press in the Connector until it
clicks into place.
Note To remove the inserted Connector, hold the latches on both sides, and pull out
the Connector.
2. Open the terminal cover of the Open Type Connector. Connect the cable
wires to the BDH terminal or the communications data high, and to the BDL
terminal or the communications data low on the terminal block. If a Round
Cable II cable is being used, connect the other wires to the BS + terminal
or the communications power supply +, and to the BS
− terminal or the
communications power supply
−.
Note Attach a M3 crimp terminal to the cable wire before you connect the wire to a
terminal block.
Flat Cable I A DCN4-MD4 Multidrop Connector is attached to the communications con-
nector of a Slave Unit or a Repeater Unit. Two DCN4-BR4 Flat Connector
Plugs are mounted separately on two communications cables. The two Plugs
are connected to the Multidrop Connector to make a branch.
M3 screw terminal block
DCN4-TB4
Open Type Connector
Communications connector
Slave Unit or
Repeater Unit
MS
N
S
R
EM
O
TE
TER
MINAL
W
O
R
D
N
O
D
E
A
D
R
CRT1
CRT1
-
OD16
OD16
-
1
01
23
4
567
8
9
10 11
12
13
1
4
1
5
X
10
[0
-
63]
X
1
OU
T
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
MS
N
S
R
E
M
O
TE
TER
M
INAL
W
OR
D
N
O
D
E
A
D
R
CRT1
CRT1
-
OD16
OD16
-
1
01
23
4
567 8
9
10 11
12
13
1
4
1
5
X
10
[0
-
63]
X
1
O
U
T
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
6.0 mm max.
6.0 mm max.