Emerson Autochangeover Controllers AC8 - Manual (Page 88)

Connecting to the Service Terminal Interface
80
A.2 C
ONNECTING TO THE
S
ERVICE
T
ERMINAL
I
NTERFACE
This section describes how to set up and connect to the Service Terminal Interface.
A.2.1 Connection Methods
There are two ways to access the Service Terminal Interface:
• Direct—Use a null modem cable to connect a computer’s COM1 port to the AC8’s RS232 port,
OR
• Remote—Use a remote computer’s modem to dial the telephone number of the phone line con-
nected to the AC8.
Both methods require a communications program, such as HyperTerminal, to connect to the Service
Terminal Interface.
Refer to Table 34 for step-by-step instructions to set up each type of connection. Note that the remote
connection does not require setting up the COM1 port.
The instructions in this section refer to the HyperTerminal program—they may vary for other com-
munications programs.
A.2.2 Create a Connection
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, AC8. This becomes the file name (with the extension “.ht”).
4. Click OK to close the window.
Table 34 Steps to set up a direct or remote connection
Direct Remote
A.2.2 - Create a Connection ✔ ✔
A.2.3 - Set Up the COM1 Port - Direct Connection Only ✔ N/A
A.2.4 - Set Up the Connection’s Properties ✔ ✔
A.2.5 - Connect to the Service Terminal Interface ✔ ✔
Enter a name for
the connection -
for example,
AC8