ASTRO VG-871 - Communication Protocol; Type 1

Chapter 1 CONCERNING THE TERMINAL COMMANDS
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1.10 Communication protocol
1.10.1 Type 1
This is the sequence when the terminal commands are started.
Fig. 1-10-1-1
Flow
Command
Send/receive direction
1
ENQ
Send
2
ACK
Receive
Fig. 1-10-1-2