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24
CHAPTER 4
Performing Advanced Functions
Configuring the devices
The RTU also has a POWER connector. Figure 8 illustrates the con-
nections available at the POWER connector.
Ext Power
Figure 8. addIT RTU POWER Connector (Top View)
WARNING
The RxD and TxD connections are not RS-232
compatible.
This configuration allows the use of external power supplies or
extra batteries (contact Adcon for further details).
You can use a Windows Hyperterminal window to connect to either
addIT device. After you have installed the system, follow these
steps to configure the device:
Note: To configure the A720B receiver, use the serial cable that
comes with the system. To configure the A720 or A723 RTU,
you must have the special adapter cable (available from
Adcon) and plug it into the POWER connector.
1.
Open a Hyperterminal window.
2.
Select the appropriate serial port and click OK.
3.
Configure your terminal as follows:
•
19200 baud
•
1 stop bit
•
8 data bits
•
No parity
•
No flow control
•
Send LF after CR
4.
Select OK to open the terminal window.
5.
Press Enter to generate a response in the window.
5
RxD
1
4
2
3
Battery
TxD
Ground
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