4-Port HDMI KVM Switch with USB 2.0 and Audio Sharing
7
Custom HotKey Triggers
ESTABLISHING AN RS-232 CONNECTION
Users are able to customize the keys that trigger Hotkeys. The default trigger for hot key function on the
keyboard is Ctrl +Ctrl. The trigger function can be used to change to the following keys:
CTRL (Left / Right), ALT, SHIFT(Left / Right), Caps Lock, Scroll Lock,
F1-F12
To view hotkey trigger setting
Use the RS-232 command:
//
??
<CR>
to view the current HotKey Trigger To reset the Hotkey Trigger
use the “Factory Defaults” command.
To change the hotkey trigger setting
HK
+
HK
+
X
+ desired hotkey
Example: If users current Hotkey trigger is Shift and want to change to Scroll Lock, user would type
Shift
+
Shift
+
X
+
Scroll lock
Before you start
Controlling a Smart-AVI device via RS-232 requires an RS-232 card installed on your computer or a USB
to RS-232 adapter. Below are instructions on how to create an RS-232 connection between a PC and
the Smart-AVI device.
Use terminal client software such as the PuTTY to connect to the Smart-AVI device. Make sure to use
communication settings 115200 bps, N, 8, 1, No flow control.
Check the device and your PC to determine if you need a male to male or a male to female cable and how
long it needs to be. The Smart-AVI device requires a straight through cable. You can use a Null Modem
Adapter to convert a crossed cable to a straight through cable. Examples of crossed and straight through
cable pin-outs are shown below. The standard maximum length for a RS-232 cable is 50 feet. Call our
Smart-AVI Support Engineer if you require more information.
Figure 7-1
Examples of 9 pin RS-232 Straight Through and Crossed Cables
