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PROTOCOL CONVERTER A/S-2G
20
Data Flow — A/S-2G to Synchronous Device
Bisynchronous Device A/S-2G Converter Asynchronous Device
WAK
ACK 1
ACK 0
AA 32 32 32 32 02 2D FF FF
NAK
AA AA 32 32 32 32 3D FF FF
(Echo CR LF)
Send block F
(Echo all but CR LF)
(Echo CR LF)
Send block G,
(end with EOT Hex 04)
(Echo all but CR LF EOT)
ENQ
ENQ
Send block F
TTD
Send block G
If data not yet available from asynchronous device:
Line release or turnaround:
2-second interval
WAK resets ENQ counter
Sync device buffer space available
If over 3-second interval