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Chapter 3. Communications Operations of BHT-6000
3.3.2 BHT-Ir Protocol
[ 1 ] Overview
The BHT-Ir protocol is the communications procedure for the serial infrared link, which
is used to transmit files between the BHT-6000 and a host (or between the BHT-6000s).
It adopts the response method using ACK/NAK codes. The BHT-Ir protocol can be used
also for communications through the direct-connect interface.
The BHT-Ir protocol is composed of a defined set of the control character sequences
including the following three phases:
Phase 1: Establishment of data link
The sending station confirms that the receiving station is ready to
receive data.
Phase 2: Data transmission
The sending station transmits data to the target receiving station.
Phase 3: Release of data link
The sending station confirms whether or not all of the transmitted
data has been correctly received by the receiving station. If yes, the
sending station terminates the data transmission and releases the
data link.