35
4
Installation and Connections
Connection Example 3 Wired Connection (RS-485 Connector Specifications)
0V
EPU-220-B
EPU-220-B
EPU-220-B
Shield
0V
0V
+24V
24V
FG
DA
DB
DG
SLD
FG
EPC-200-CC
USB cable
COM A
connector
COM A
connector
EPU connector 1
EPU connector 1
EPU connector 2
Power supply
terminal block
Power supply
terminal block
COM B
connector
0V
24V
FG
* Used for initial settings and
controlling the product from a PC.
Terminating
resistor
ON
*1
Terminating
resistor
ON
*1
Terminating
resistor
ON
*1
EOCA-200-B-x
Power
supply
Power
supply
EORP-200
*2
Repeater Hubs
Cables for Repeater
Hubs (Optional)
EOCA-200-A-x
Cables for Repeater
Hubs (Optional)
EORP-200
*2
Repeater hubs
EOCA-200-C-x
Cables for Repeater
Hubs (Optional)
Terminating
resistor (120 Ω)
CA
CB
CS
SL
CA
CB
CS
CA
CB
CS
CA
CB
CS
CA
CB
CS
24V
0V
CA
CB
CS
CA
CB
CS
24V
0V
24V
0V
24
0
If connecting an EPC-200-CC
*1 Set the terminating resistor settings of all units to be connected to the repeater hub to “ON”.
Factory default settings for connector type are set to "ON".
*2 For connecting a repeater hub, please refer to the "
Repeater Hubs EORP-200 Instruction Manual
Install the terminating resistor (120 Ω) included with the transceiver to both communication
line terminals "CA" and "CB" on the transceiver side.