Flow Control - Christie Boxer 4K Technical Reference

Error code Description
6 Channel not found
7 Command not executed
8 Checksum error
9 Unknown request
10 Error receiving serial data
101 Control not found
102 Subcontrol not found
103 Wrong control type
104 Invalid value

Flow control

Normally messages can be sent to the projector before processing of earlier messages is complete—
Boxer 4K stores messages in a buffer until ready to process. However, if a series of messages is sent,
Boxer 4K may not be able to process them as fast as they arrive and the buffer becomes full.
If this happens, Boxer 4K sends the 13h (Xoff) code to instruct the controller (or any devices
preparing to transmit) to cease transmission. At this point, the controller must respond immediately
and send no more than 10 extra characters or they may be lost (such as, Boxer 4K can accommodate
the receipt of up to 10 more bytes after it sends 13h (Xoff)). When the buffer is once again available,
Boxer 4K sends a 11h (Xon) command to resume transmission.
Xon and Xoff controls apply to both directions of communication. Boxer 4K does not send more than
three characters after it has received a 13h (Xoff) code.
Boxer 4K Serial API Commands Technical Reference
020-101697-05 Rev. 1 (07-2017)
Copyright 2017 Christie Digital Systems USA Inc. All rights reserved.
©
Communicating with Boxer 4K
Error code Description
110 Communication timeout
111 Communications failure
112 Failed to set hardware
113 Bad file
114 Memory failure
115 Not implemented
116 Invalid security
117 Invalid access group
118 System busy - Try again later
12