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SIS Commands
This section provides information about the Extron Simple Instruction Set (SIS ™ ) commands
that are used to configure the SSP 7.1 in the following sections:
• Introduction to SIS
• Symbols Used in this Manual
• Error Messages
•
Command and Response Table for SIS Commands
• Setting Speaker Delay Settings using SIS Commands
• Setting up Test Sources with SIS Commands
Introduction to SIS
The SSP 7.1 accepts SIS commands from a host device such as a computer running the
HyperTerminal utility or other control system. The host device can be connected to the
3-pin captive screw connector on the rear panel or to the config port on the front panel.
To connect to the config port, use the optional Extron 9-pin D female to 2.5 mm TRS
Configuration cable (part #
70-335-01
).
The protocol is 38400 baud, 8 data bit, 1 stop bit, and no parity.
NOTES:
The wiring in the RS-232 cables crosses over so that the surround sound
processor Tx connects with the control device Rx and vice versa.
Only one serial port can be used at a time. If the front port is in use, the rear
captive screw connector must be disconnected from the computer or other
control device. Likewise, if the captive screw port is in use, the config port on the
front panel must be disconnected from the computer or other control device.
SIS commands consist of a string (one or more characters per command field). Unless
otherwise stated, upper and lower case characters may be used interchangeably. Commands
do not require any special characters to begin or end the command string. Each response
from the SSP 7.1 ends with a carriage return and a line feed (CR/LF =
]
), which signals the
end of the response character string.
When the SSP 7.1 is first switched on, depending on the model, it sends the message:
(c) Copyright 2010, Extron Electronics, SSP 7.1, 60-842-01, V x.xx
]
where 60-842-01 is the
catalog part number and V x.xx is the firmware version number.
SSP 7.1 • SIS Commands 78