Table 3-2. Tpu2000 Aux Com Signal Assignments; Figure 3-9. Tpu2000 Rs485 Wiring Diagram - ABB TPU2000 Technical Manual

Table 3-2. TPU2000 AUX COM Signal Assignments

Pin Number
65 IRIG B Minus
66 IRIG B Plus
67 INCOM
68 INCOM
69 +5 VDC (100 mA max)
70 RESERVED
71 RESERVED
72 RS485 Common /(Return)
73 RS485 Minus
74 RS485 Plus
Therefore, connection of several TPU2000 units on a communication network would yield the wiring as depicted
in Figure 3-9. TPU2000 and TPU2000R units may be interconnected on the same network as long as this signal
position difference is noted and signal polarity is followed.
Cable "B" RS485 Connection
Shield is Frame Grounded
at one point
*See
Note
74 73 72 71 70 69 68 -----
TPU2000 End Unit
Ethernet Connectivity
There are two interfaces on the Ethernet card type "E" option when it is inserted in the unit. The two interfaces
are available on the device are a 10 BASE T copper interface and a 10 BASE FL fiber optic interface.
illustrated in Figure 3-10 a slide switch is available to enable one of the two interfaces on the card. Slide the
switch towards the card edge connectors to enable the FIBER OPTIC interface, slide the switch away from the
card edge connector to enable the COPPER interface.
TPU2000/2000R Modbus/Modbus Plus Automation Guide
Pin Definition
Shield is
isolated
RS485 Isolated Port
TPU2000 Inline Unit

Figure 3-9. TPU2000 RS485 Wiring Diagram

*Note - Reference the Topology Drawing
for Termination configuration if internal
or external termination is selected.
Shield
Isolated
74 73 72 71 70 69 68 -----
RS485 Isolated Port
TPU2000 End Unit
Shield is
isolated
74 73 72 71 70 69 68 -----
RS485 Isolated Port
As
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