The Asynchronous Communication Status Display

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The Asynchronous Communication Status Display

The asynchronous communication status display consists of the characters in the left corner of the status line. These characters indicate the state of the communication device for the current session. Interpreting these characters can help you resolve most types of asynchronous connectivity problems.

When the port is closed, communication status displays two characters !C.

When the port is open, the asynchronous communication status display includes four characters:

First character

A character indicating the type of communication device the session is using. The character is one of the following:

Character	Communication device
C	COM
M	Memory
T	Telnet
Z	SSH

Second character

When a communication device is a COM port, the port number is indicated by a character in range 0 through 9, then A to Z, then a to z. For example, COM port 12 is displayed as C. For COM ports 62 and higher the indicator displays !. For other communication devices, this position is blank.

Third character

A character indicating the status of the Clear to Send (CTS) line for this asynchronous connection. You may see any of these indicators:

Character	Meaning
=	The session is detecting a CTS signal. This is an acceptable state for the indicator.
-	No CTS signal is present, but CA Automation Point expects none because you set Clear to Send to No in the communication settings for this session. This is an acceptable state for the indicator.
X	No CTS signal is present, but CA Automation Point expects one because you set Clear to Send to Yes in the communication settings for this session. This is an unacceptable state for the indicator; it means that CA Automation Point cannot communicate with the host associated with this session.

Note: When X displays, take one of these actions:

Determine why no CTS signal is present by checking cable and communications port connections.
Change the value of the Clear to Send setting to No if no CTS signal is expected.

Fourth character

A character indicating the state of the Data Set Ready (DSR) signal. You may see any of these indicators:

Character	Meaning
R	The session is detecting a DSR signal. This is an acceptable state for the indicator.
F	No DSR signal is present, but CA Automation Point does not expect one because you set Data Set Ready to No in the communication settings for this session. In effect, this setting forces the DSR line into an acceptable state.
?	No DSR signal is present, but CA Automation Point expects one because you set Data Set Ready to Yes in the communication settings for the current session. This is an unacceptable state for the indicator; it means that CA Automation Point cannot communicate with the host associated with this session.

Note: When ? displays, take one of these actions:

Determine why no DSR signal is present by checking cable and communications port connections.
For more information, see Establishing Host Sessions.
Change the Data Set Ready communications setting to No if no DSR signal is expected.

Fifth character

A plus sign (+) indicating that a Carrier Detect (CD) signal is present. If CA Automation Point is not receiving a CD signal, this position is blank. This indicator is for your information and does not affect the ability that CA Automation Point has to communicate with the host for this session.

Some cables, adapters, and host connections provide the CD signal for compatibility purposes; however, no CD signal is required if you are using a direct connection.

Example:

For example, suppose that C3-R+ appears in the display. The indicators tell you that CA Automation Point is communicating with the host device for this session under these conditions:

You are using the third accessible COM port.
No CTS signal is present, but none is expected.
A DSR signal is present and in an acceptable state.
A CD signal is present and in an acceptable state.