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Appendix A
8-Port Expansion Module Option
OMEGA Installation, Operation, and Maintenance Manual 59
c
Each comma represents a 2-second pause.
c
<
port number
> is the port number with which the host
wants to communicate.
c
<Enter>
is the pressing of the Enter key on your computer.
Example: ATDT 19495552468,,,4
<Enter>
In this example, OMEGA dials 1 949 555-2468, waits 6
seconds to allow a connection, and connects the line to port
4.
Second Dial Tone Method (Manual Connection)
With this method, the host computer calls OMEGA and waits for a
“second” dial tone from OMEGA. The second dial tone signals the
host to enter the DTMF tone that corresponds to an OMEGA port.
To enable this method, connect a laptop computer to OMEGA’s
DB-9 connector, start a terminal-emulation program such as
HyperTerminal, set up the program to use the parameters on page
62, and send the following command from the program:
\PR=1
<Enter>
.
When OMEGA is configured for the second dial tone method, the
host issues the following dial string:
ATDT<
phone number
>W,,<
port number
>
<Enter>
In this string:
•
<
phone number
>
is the OMEGA phone number (and area
code, if required).
•
W indicates that the host is to wait for the second dial tone.
•
Each comma represents a 2-second pause.
•
<
port number
> is the port number with which the host
wants to communicate.
•
<Enter>
is the pressing of the Enter key on your computer.
Example: ATDT 19495552468W,,6 <Enter>
To switch from the second dial tone method to the time delay
method, use a laptop computer connected to OMEGA’s DB-9
connector to send the following command from a terminal-
emulation program: \PR=0
<Enter>