Comtech EF Data SNM-1000 - Manual (Page 177)

SNM-1000 Node Control Modem Revision 3
Remote Control Operation MN/SNM1000.IOM
A–29
A.9 Unsolicited Responses
The following strings are generated by the DCE to reflect events which are not directly
related to commands typed from the DTE.
They generally reflect the results of an earlier
command.
To ensure that a response is never inserted in the midst of another string, the following
strings will not start until any transmission in progress has been completed. However, if a
partial line has been entered from the DTE to the DCE, this strict sequence control causes
indefinite waiting by the response string. The response string shall wait until the partial
line is completed.
A.9.1 Messages from NMS
CONGESTION Channel cannot be assigned because there is no
satellite spectrum space available.
BUSY Destination end is busy.
NO CONNECT NMS was not able to complete the connection.
Error Type
Failure Terminate.
Invalid Request.
CONNECT
Received when a connection is made.
DISCONNECT Received when a connection is broken.
Result Type Code
Path Ok.
0
Calling Party Busy.
1
Failure Terminate.
2
Invalid Request.
3
Normal Termination.
4
Network Busy.
5
Critical Fault.
6