Always Send Connect Message; Always "Ring" Port; Use Non-Verbose Result Codes; Enable Blocking - Honeywell CNI2 Operating And Installation Manual

CNI2 Operating and Installation Guide
Choosing a value that is too high may cause the application program running on the central
computer to abort or retry too often because it did not receive a response within an acceptable
period of time.
Start with a value of 50 ms and fine-tune it from there.

Always Send CONNECT Message

The serial device connected to the CNI2 can request a call or answer an incoming call by
issuing specific "AT" commands such as "ATD" (dial) or "ATA" (answer). When the connection
with the central computer has been established the CNI2 will send a "CONNECT" message to
the serial device to let it know that the connection has been established.
The CNI2 can also place a call on its own in response to an alarm condition or some other
event. In these situations the CNI2 would not normally send a "CONNECT" message to the
serial device. However some devices may require a "CONNECT" message before allowing
further communications. By checking the Always Send Connect Message box the CNI2 will
always send a "CONNECT" message every time it connects with the central computer,
regardless of who originated the call.
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Always "RING" Port

In some applications the serial device connected to the CNI2 may have been programmed to
automatically answer incoming calls. After the call is answered and a connection is established
with the central computer a "CONNECT" message is usually sent to the serial device.
In other applications the serial device might control when incoming calls will be answered. The
CNI2 will send a number of "RING" messages to the serial device and wait for the serial device
to respond with an answer ("ATA") command. If this mode is required, check the Always
"RING" Port checkbox. The CNI2 will send up to three "RING" messages to the remote device.
If an "ATA" is received the CNI2 will respond with a "CONNECT" message. If no response is
received the CNI2 will send a "CONNECT" message only if the Always Send Connect Message
box has been checked.

Use Non-verbose Result Codes

For AT-compatible modems a "verbose" message is usually a readable text string such as
"CONNECT" or "RING". A "terse", "numeric", or "non-verbose" message typically consists of
one or two numeric digits, such as "2". The CNI2 defaults to verbose messages, but the remote
device can change this by issuing an "ATV" or "ATV0" command. However some devices may
simply expect non-verbose messages and will not issue any additional commands to make this
happen. In this case check the Use Non-verbose Result Codes box.

Enable Blocking

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This is used solely for InvisiConnect applications and is not currently supported.

Use Alternate CONNECT Message

Usually the serial device requires some sort of notification when a connection has been
established with the central computer. Often this message will be "CONNECT xxxx", where
"xxxx" indicates the baud rate, such as "CONNECT 9600". The CNI2 defaults to this format, but
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