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4. Port Selection
4.1. Selecting a Port
1. After completing the installation procedure, flip the power switch on the back of the unit
to ON.
Note: Upon each power-up the unit will reset and all ports will be closed.
2. Refer to the Port Select Code Chart below and find the letter representing the port you
wish to connect to.
Module 1 Module 2 Module 3 Module 4
Port Code Port Code Port Code Port Code
3. Go to the PC or terminal connected to the Control (Modem) Port. Start your
communications program. Enter the Prefix Code followed by the appropriate Port Select
Code.
The Control port connects to the selected port and remains connected until another code
sequence is issued.
Note:
•
The Prefix code is sent out the selected port. The Port Select code is not sent out
the selected port because all ports close briefly upon receipt of the Prefix code.
•
The selected port opens during the Port Select code's stop bit time. All data
following the Port Select code is sent out the selected port including the next
Prefix code.
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