Input Operations - Control Data 1700 Maintenance Manual

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INPUT OPERATIONS
STATUS STATION 1
When a status operation is requested, the Common Synchronizer must connect the
designated station status code to the A Register input data lines. For the
following example, assume that station 1 (teletypewriter) has been designated.
With a request for status, the output of 3-Bl7-l is a logical one.
If station 1 is designated, the outputs of 5-Bl4-25 and 5-B14-27 are logical
ones while the outputs of 5-Bl4-8 and 5-B14-10 are logical zeros.
The 110 11
output of 5-B14-8 will transfer the Ready, Busy, Interrupt and Data status
bits being received from station 1 to the TG module at location B1D (page 7).
The logical 110 11 from 5-B14-10 will transfer the Protected, Alarm, Lost Data and
End of Operation Status bits being received from station 1 to the TG module
(page 7) at location B09.
The logical 11111 from 5-B14-27 provides a signal to the teletypewriter (TTY)
controller for its use during data transfers or function operations. The
logical 11111 from 5-B14-25 goes to the 204 module, page 7, where it:
(1) enables the TTY Read Mode status to bit A09.
(2) enables the Reply/Reject logic (201 module, page 3).
(3) enables the Manual Interrupt status to bit All (210 module, page 9).
The status signal at 3-B17-l goes to the 204 module (page 7) where it:
(1)
transfers Ready, Busy, Interrupt and Data status bits to ADO, AOl,
A02, and A03, respectively (TG module at location B10).
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