6100 BSC Programming Manual

6100 BSC Link and Station Management
REQUESTS AND FUNCTIONS APPLICABLE TO CIRCUIT ASSURANCE STATE.
The following requests are permitted in CIRCUIT ASSURANCE
state. Some requests have different functions when the line
is in other states. For complete descriptions of the requests,
see Section 3.
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| |
| FETCH CONFIGURATION, to retrieve line parameters. You |
| can find out the values of line parameters, but you aren't |
| allowed to change them. This request does not cause a |
| change of state. |
| |
| |
| FETCH STATISTICS, to retrieve line quality and usage data. |
| This request does not cause a change of state. |
| |
| |
| READ DATA, to receive the ID of the calling station. This |
| request does not cause a change of state. |
| |
| |
| WRITEREAD DATA, to initiate ID exchange if this is the |
| calling station, and to read the ID of the called station; |
| to reply to the calling station if this is the called |
| station, and to read the response. The line state when |
| the request completes successfully is CONTROL. |
| |
| |
| CONTROL, to disrupt an ID exchange in progress and change |
| the state to DISCONNECTED. |
| |
| |
| SETMODE, to change the retry count or the block length for |
| transparent text. This request does not cause a change of |
| state. |
| |
| |
| ABORT, to stop a request in progress, for example, a |
| READ or WRITEREAD request. The ID exchange does not |
| complete, so the line stays in CIRCUIT ASSURANCE state. |
| |
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