Emerson AC4 User Manual

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Before connecting to the Service Terminal Interface, you must create a connection and specify the 

method to be used for connection, as described in the following steps.
1. Start the HyperTerminal program—to do this, click on the Start button, then on Programs, then 

Accessories, then Communications, and finally HyperTerminal.

2. At the top of the HyperTerminal window, click on File, then on New Connection, as shown 

below left.

3. In the Connection Description window, shown above right, 

enter a name for the connection—for example, AC4. This 

becomes the file name (with the extension “.ht”).

4. Click OK to close the window. The Connect To window 

opens, as shown at right.

5. In the Connect To window, select COM1 from the Connect 

Using drop-down list. 

6. Click OK. This opens the COM1 Properties window. 

7. In the COM1 Properties window, shown at right, make the 

following selections:

• Bits per second: 9600
• Data bits: 8
• Parity: None
• Stop bits: 1
• Flow control: None

8. Click OK. When the connection is open, the connection 

name appears in the title bar of the HyperTerminal 

window. To complete the setup, continue with Step 9 

(next section).