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RS-232
Atlona Technologies’ switcher can be controlled via the RS-232 serial control port to allow for interfac¬ing to a PC, The
serial communication parameters are 9600 baud, 8 bit, No Parity and 1 stop bit - this is often referred to as 9600 8N1.
When the unit recognizes a complete command it will perform the requested action - there is no delim¬iter character
required. The unit does not send out a message when a value is changed from the front panel or by IR control. If the
unit needs to be controlled via the front panel in addition to the RS232 con¬trol, you should regularly poll the unit
status to ensure the control system accurately reflects the current settings, or similar third party control system.
COMMANDS
To Switch Inputs to Outputs
SBIOXOOY - Where X is Output Number (1-1) and Y is Number (1-2) Unit will respond with
SBUDOXOY - Where X is Output Number (1-1)and Y is Input Number (1-2)
Example: Send Input 2 to Output 1
SBI02O01 -Send
SBUD02O1 -Rcvd
STANDBY MODE
Note: Turning the unit System Power Off over RS232 will distinguish the LED display leaving only the Power Switch LED on. The
Video and Audio outputs will also mute. While the unit is turned off by RS232 it will continue to accept and act upon switching
commands. For example, if the unit is in the off mode (via RS232) and you send a command to switch an input to an output, that
route will complete and the video and audio will now appear on that channel only. The front panel LED for that particular output
will also show the input selected (for that single output channel only). The remaining LED’s will remain off and video and audio
outputs muted. The unit will still return status and change messages in response to commands sent while in Power Off state. A
hard reset command (SBALLRST) will return the unit to normal operation and also unlock the front panel.
POWER OFF MODE
SBSYSMOF - Put system into Standby (Soft Power Off) SBSYSMON - Bring unit out of Standby (Soft Power On)
Unit will respond with SBALOFAK - Unit is in
Standby SBALONAK - Unit is no longer in
Standby
Example: Put Unit in Standby (Soft Power)
SBSYSMOF - Send
SBALOFAK - Rcvd
FRONT PANEL LOCK
Note : Hard resetting the unit will unlock the Front Panel controls..
SBSYSMLK - When front panel is locked, changes can only be made by RS-232 SBSYSMUK- Front Panel Unlock
Unit will respond with
SBSYSLOK - Front Panel has been Locked SBSYSULK- Front Panel has been Unlocked
Example : Lock Front Panel Buttons
SBSYSMLK - Send
SBSYSLOK - Rcvd
UNIT RESET SBALLRST - Reset every output to Input 1
Unit will respond with
SBRSTACK - Unit has reset each Output to Input 1
Example : Reset all outputs to Input 1
SBALLRST - Send
SBRSTACK - Rcvd
RS-232 PROTOCOL COMMANDS