2.1.7.ACK/NAK Protocol
Once this protocol is activated, the decoder waits for an acknowledgment from the host system:
•ACK (06 hexa) means: message correctly received by the host system.
•NAK (15 hexa) means: message incorrectly received by the host, upon reception of this character the decoder resends the message.
ACK/NAK DISACTIVATED *
ACK/NAK ACTIVATED
2.1.8.XON/XOFF Protocol
Using this protocol, the host system can control the data flow coming from the decoder:
•XON (11 hexa) means: host system ready to receive data.
•XOFF (13 hexa) means: host system busy, the decoder stops the transmission and waits for an XON.
XON/XOFF DISACTIVATED *
XON/XOFF ACTIVATED
2.1.9.RTS/CTS Protocol
This protocol is a hardware "handshake" between the decoder and the host system. Before transmitting data, the decoder rises its RTS signal (pin 4) to +10 volt and waits for a +10 volt signal on its CTS (pin 5) from the host. The rest position of the two pins is
RTS/CTS PROTOCOL DISACTIVATED *
RTS/CTS PROTOCOL ACTIVATED
START OF CONFIGURATION | END OF CONFIGURATION |
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IS1000 – Configuration Guide | 10 |
