QSC USL JSD-60, Руководство пользователя

Страница: 37 / 44

184050 Page 37
Appendix B – Automation Commands
These commands are used to query the status of the JSD-60 or change its operation (adjust
level, select input, etc.). The commands are typically sent by an automation system. They may
be sent over RS-232 or Ethernet. This is a subset of the full command set. The full command set
includes commands for adjust equalization, etc. Commands are not echoed by the JSD-60.
Commands are terminated by a carriage return (0x0d). Commands are tab delimited. There
needs to be a tab character (0x09) between the command and the first parameter, then
another tab before the second parameter, etc. The JSD-60 responds to every command.
Responses are also tab delimited and are terminated with a carriage return. All commands are
lower case and are case sensitive. Note: Every command generates some sort of response that
must be picked up by the command sender. Failure to pick up these responses can cause
buffers in the JSD-60 or the host to fill, possibly halting communications. If the response is not
needed, a simple "eat garbage" routine that loops until the receive buffer is empty should be
called before sending a command.
RS-232
The JSD-60 is a DCE device that transmits on pin 2 of the 9 pin D connector. The JSD-60 receives
data on pin 3. Communications is at 38.4kbps, 8N1 (8 data bits, no parity, 1 stop bit).
Ethernet
The JSD-60 listens on port 10001 for TCP connections from other equipment (typically a digital
cinema server). Commands and responses are then exchanged in ASCII.
Automation Command List
The Automation Command List shown in table below. Remember that commands are tab
delimited and terminated with a carriage return. In the table below, the required tab characters
are shown as "\t", and the required carriage return characters are shown as "\r". Consult the
next table to determine how to insert a tab or carriage return in the command string.
The JSD-60 accepts a small number of JSD-100 commands. It interprets the command such that
the ending result is similar to that of a JSD-100. For example, the command to select either
COAX1 or COAX2 on a JSD-100 will result in the COAX input of the JSD-60 being selected.
NOTE that commands are case sensitive and all lower case. Also consult the table on the next
page or the server manual as to how to encode tab and carriage return characters.