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SIS Commands
This section describes remote operation of the DTP2 R 212 switching receiver. Topics
include:
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Using Simple Instruction Set (SIS) Commands
The DTP2 R 212 can be remotely set up and controlled via Extron SIS commands that are
issued from a host computer or other device, such as a control system. SIS commands can
be issued via RS‑232 from the computer serial port to the rear panel Remote port, or via
USB from the computer USB port to the front panel Config port (see
RS-232 Control
to these ports).
Commands can be entered using a communication software program such as Extron
DataViewer, available at
The default protocol for the RS‑232 connection is 9600 baud, no parity, 8‑bit, 1 stop bit.
Host‑to‑switcher Communications
SIS commands consist of one or more characters per field. No special characters are
required to begin or end a command sequence. When the switcher determines that a
command is valid, it executes the command and sends a response to the host device.
Responses from the DTP2 R 212 to the host computer end with a carriage return and a line
feed (CR/LF = ]), which signals the end of the response character string. A string is one or
more characters.
Switcher‑initiated Messages
When a local event such as a front panel selection or change in signal status takes place,
the switcher responds by sending a message to the host, indicating what change has
occurred. No response is required from the host.
The switcher sends the following message when it is first powered on:
(C) Copyright 2020, Extron Electronics DTP2 R 212, Vn.nn, 60-1588-52
NOTE: This message is displayed at power‑up only with an RS‑232 connection.
Using Simple Instruction Set (SIS) Commands
Symbol Definitions
Command and Response Table for SIS Commands
Command and Response Table for CEC Communications SIS Commands
on page 16 or
www.extron.com
Vn.nn is the firmware version number.
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60-1588-52 is the part number of the unit.
Connecting to the USB Port
(see the DataViewer Help file for more details).
DTP2 R 212 Series • SIS Commands
Display and Remote
on page 21 to connect
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