Denso BHT-7000 Manual do Utilizador descarregar pdf (Página 107)

Chapter 3. Communications Operations of BHT-7000

3.3 Communications Protocols

The BHT-7000 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-7000 and a host (or between the BHT-7000s). 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.

For details about the transmission control sequences and horizontal parity checking,

refer to Appendix B, B.1, "BHT-protocol."

1 2 ... 102 103 104 105 106 107 108 109 110 111 112 ... 174 175

Sem comentários

Denso BHT-7000 Manual do Utilizador Página 107