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Connecting for Serial Communication
The front panel Config ports on both the transmitter and the receiver (see
on page 9 and
RS-232 connection. Connect a 9-pin D-to-2.5 mm cable from the host computer serial
port to the Config port on either the transmitter or receiver front panel to enable serial
communication (commands are sent to both units simultaneously). SIS commands can be
entered at the computer and issued to the transmitter or receiver through these ports to
control and configure the unit. The protocol for the ports is 9600 baud, 8 data bits, 1 stop
bit, and no parity.
An optional 9-pin D-to-2.5 mm TRS configuration cable is available from Extron and can
be used to connect your computer to this port. Figure 8 shows the configuration and pin
assignments of this cable.
1
5
Figure 8.
Enabling and Disabling Peripheral Emulation
The transmitter can be set up to emulate a mouse and keyboard to the host computer that
is connected to the transmitter Host input port. This allows the computer to boot up in the
event that it requires a USB keyboard or mouse to be present.
When peripheral emulation is disabled, up to four USB hubs can be connected in a series
to the receiver. When peripheral emulation is enabled, up to three hubs can be connected.
Using Extron Simple Instruction Set (SIS) commands, you can disable and enable peripheral
emulation (by default, peripheral emulation is enabled). The following peripheral emulation
commands can be issued to the transmitter only:
•
•
See
entering SIS commands.
figure
6,
, on page 10) enable communication with a computer via an
B
6
6
9
9
9-pin D
Connection
Pin 2
Computer Rx line
Pin 3
Computer Tx line
Pin 5
Computer signal ground
Optional 9-pin D to 2.5 mm TRS Cable for the Config Port
To disable: E
}
E 0 USBC
To enable: E
}
E 1 USBC
Remote Configuration and
FOX T/R USB Extender Plus • Installation and Operation
6 feet
(1.8 m)
Tip
Ring
Sleeve (Gnd)
TRS Plug
Tip
Ring
Sleeve
Control, beginning on page 16, for information on
figure
5,
,
B
13
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