Extron Electronics RGB 201 - Manual (Page 34)

RGB 201 Rxi Universal Interface • Remote Control
Remote Control, cont’d Remote Control
3-2
The interface’s rear panel Remote connector (Figure 3-1) can
be connected to the serial port output of a host device, such as
a computer or control system. Remote communications with
the switcher are via Extron’s Simple Instruction Set or Extron’s
Windows-based control program.
Pin RS-232 Function
1 —
2 TX Transmit data (-)
3 RX Receive data (+)
4 —
5 Gnd Signal ground
6 —
7 — —
8 — —
9 — —
—
—
—
Female
5 1
9 6
Male
1 5
6 9
Figure 3-1 — Remote connector pinout
The RS-232 protocol of the rear panel Remote connector is 9600
baud, 1 stop bit, no parity, and no flow control.
Simple Instruction Set Control
Host-to-interface communications
SIS commands consist of one or more characters per field. No
special characters are required to begin or end a command
sequence. When a command is valid, the interface executes
the command and sends a response to the host device. All
responses from the interface to the host 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.
Interface-initiated messages
When a local event such as a front panel or contact closure
selection or adjustment takes place, the interface sends a
message to the host. No response is required from the host. The
interface-initiated messages are listed here (underlined).
(C) Copyright 2002, Extron Electronics, RGB 201 Rxi, Vx.xx
]
The interface displays the copyright message when it first
powers on. Vx.xx is the firmware version number.
RECONFIG
]
When a change is made via a front panel control or another
operation occurs that must be written to a new memory block,
the interface sends the reconfiguration message. No response is
required from the RS-232 host, but the host may request a new
status listing via the request information command (I/i). See the
command/response table in this chapter for details.