User's Manual

APPENDIX B
REMOTELY MANAGING THE DISPLAY
81 smarttech.com/kb/171164
No. of
displays
Get command Set command Response
Hardware version
[N/A] get hwversion [N/A] serialnum=[Value]
Where [Value] is the hardware
versions of connected displays.
Resolving issues with remote management
The following table presents common issues with remote management and explains how to
resolve them:
Issue Solutions
You can’t establish a connection
between the display and the
remote management system.
l Configure the serial interface settings.
See Configuring the computer’s serial interface settings on page75.
l Don’t connect the display to the remote management system with null modem
cables.
TIP
Null modem cables usually have the same connectors on both ends.
l Check the cable connections.
l Disconnect all cables from the display except the RS-232 cable. Reconnect the
cables one at a time to isolate the cable connection causing the issue.
l Connect a short cable from the display to a computer and then run a terminal
emulation program like PuTTY or TeraTerm. If the display responds to
commands, the issue is likely with the remote management system.
You can establish a connection
between the display and the
computer, but the display isn’t
accepting commands.
l Be aware that commands only work when the display is on.
See Commandinventory on page79.
l Restart the display.
See Turning the display off and back on on page43.
You can establish a connection
between the display and the
computer, but the display is only
accepting commands
intermediately or is ignoring some
commands.
l Be aware that commands only work when the display is on.
See Commandinventory on page79.
l Make sure the remote management system is not continuously polling for data.
For example, requesting power status every 0.5 seconds can cause issues.
l Restart the display.
See Turning the display off and back on on page43.