Figure 3-5. Location Of Rs485 Resistor Configuration Jumpers In The Tpu2000R; Figure 3-6. Rs485 Topology Configuration For The Tpu2000R - ABB TPU2000 Technical Manual

Option 8
Board
Option 8
Board

Figure 3-5. Location of RS485 Resistor Configuration Jumpers in the TPU2000R

Topology Diagram for RS485 Multi-Drop Architecture - if jumpers are
inserted on end units providing for proper termination.
+ 5 V
470 Ohms
Jumper J8 "IN
Jumper J6 "IN" 120 Ohms
470 Ohms
Jumper J 7 "IN"
* See Note A.
E C
Unit 1
End Unit

Figure 3-6. RS485 Topology Configuration for the TPU2000R

TPU2000/2000R Modbus/Modbus Plus Automation Guide
Component Location with Unit Removed From The Case (Top View)
Cable "A"
See Attached Diagram
TX/RX +
Unicom Physical Interface
Converter Switch Settings
TX/RX -
- DTE
- RS232-RS485
- 19200 Baud
- HD
Three-wire cable with
shield. Cable "B" - See Attached Diagram.
E C
Unit 2
Jumpers
Inline Unit
J6, J7, J8
"OUT"
32 Devices and 3000 Feet Maximum loading and distance.
Option 4 or 8
Board
Jumper OUT Jumper IN
Top View
* Note A - Following Cable Recommended
Alpha # 58902
Belden # 9729, # 9829
Carol #58902
Jumper J8 "Out"
TX/RX +
:
Jumper J6 "IN"
120 Ohms
TX/RX -
Jumper J 7 "Out"
E C
Unit 30 Unit 31
Inline Unit End Unit
E C
15