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Chapter 3. Communications Operations of BHT-6000
3.3 Communications Protocols
The BHT-6000 supports both the BHT-protocol and the BHT-Ir protocol for file trans-
mission.
3.3.1 BHT-protocol
[ 1 ] Overview
The BHT-protocol is the communications procedure 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-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.