User's Manual

Table Of Contents
General Software Information
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Figure 4-3 Orion Reader Sequence Number Controls (cont’d.)
Data Acknowledge Controls
The Orion Reader initiates and uses data acknowledge messages to signal the recep-
tion of command request messages received from the host. Additionally, the host initi-
ates and uses data acknowledge messages to signal the receipt of command response,
asynchronous response, and unsolicited status messages from the Orion Reader.