"Section 2.4.3.5 AWNS (Acceptor Wait for New Cycle State).
In AWNS the AH function indicates that it has received a
multiline message byte.
In AWNS the RFD message must be sent false and the DAC message
must be sent passive true.
The AH function must exit the AWNS and enter:
(1) The ANRS if DAV is false
(2) The AIDS if the ATN message is false and neither:
(a) The LADS is active
(b) Nor LACS is active"
-- from the IEEE Standard Digital Interface for
Programmable Instrumentation
