Pioneer PRV-LX1 manual Page 5 of

Models: PRV-LX1

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PRV-LX1 RS-422A Protocol

The controller must ensure that no more than a 10 msec lapse occurs between bytes in a command block.

The controller must immediately stop sending data when it receives a NAK + Error Data message. The unit must wait at least 10 msec before resending the command.

The controller should wait at least 10msec to receive a response from the PRV-LX1. The unit should not send another command during this time.

When the controller does not receive a response from the PRV-LX1 within the 10 msec timeout, it assumes that communication has ceased and sends the command again.

Error descriptions are listed in this manual under the section entitle Command Formats

If the PRV-LX1 detects a communication error, it sends a NAK and an error code to the controller.

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