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SIS Commands

This section provides information about the Extron Simple Instruction Set (SIS

™

)

commands that are used to conﬁgure the DP DA2.

• Introduction to SIS

• Symbols Used in this Guide

• Error Messages

• Command and Response Table for SIS Commands

Introduction to SIS

The DP DA2 accepts SIS commands from a host device such as a computer running

the Extron DataViewer 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 USB CFG cable.

The protocol is 9600 baud, 8 data bits, 1 stop bit, and no parity.

NOTES:

• The wiring in the RS-232 cables crosses over so that the DP DA2 Tx connects

with the control device Rx and vice versa.

• Only one serial port can be used at a time. If the conﬁg 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 DP DA2 ends with a carriage return and a line feed (CR/LF = ]),

which signals the end of the response character string.

When the DP DA2 is ﬁrst switched on, it sends the message:

60‑1221‑01]

where 60‑1221‑01 is the catalog part number and V x.xx is the ﬁrmware

version number.

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Extron electronics DP DA2 Guide de l'utilisateur Page 20