Extron MLC100 Plus Strip Cat 6 cable jacket about 1 inch and expose individual cables. Cut Green and Brown pairs, Cut single Blue/White wire down to cable jacket. Strip wire and connect as below. Note: if creating a Com2 cable for Extron Box (doghouse), Flip Orange/White pin 1 with Orange pin 2 to create a bi-directional communication cable. COM 1 wiring             COM 2 wiring     O/W | O  | Blue   O/W| O | Blue    RS232 Female Projector connector  Color Pin # This is the connection in the RS232 connector used to control the projector. Blue Pin 1 |Orange/White Pin 2 | Orange Pin  3  

Configuring Extron MLC100 Configure Ethernet port of laptop to reflect IP: 192.168.254.100; Subnet: 255.255.0.0.   How to manually configure IPv4: https://support.microsoft.com/en-us/windows/change-tcp-ip-settings-bd0a07af-15f5-cd6a-363f-ca2b6f391ace   Connect Ethernet from laptop to PoE injector Data port. Then connect PoE to Extron MLC100 ethernet port.       Open Extron GC (Global Configure) Go to Tools Tool Belt Drop Down (4th Choice) Note: password is Extron if missing. Firmware update. Click on the micro chip icon and choose the firmware file. Once completed to 100%, close Toolbelt. Proceed to GCP for unit will need to be verified and build. File, Open Project and open Extron folder to choose latest build. Under Build, choose Verify and allow Verify to run. Once Verify, Click Build and allow Build to Complete. Remember to click Disconnect to remove the queue for MLC.  

You will need an account on Extron to download firmware file. Firmware will need your -wa account to install. Configure Ethernet port of laptop to reflect IP: 192.168.254.100; Subnet: 255.255.0.0.   How to manually configure IPv4: https://support.microsoft.com/en-us/windows/change-tcp-ip-settings-bd0a07af-15f5-cd6a-363f-ca2b6f391ace 2. Connect an ethernet cable from laptop to LAN port on Extron 4k switch. 3. Open a hyperlink in browser to http://192.168.254.254.  Username: admin Password: extron 4: Scroll down page until Firmware. Click button and select firmware file.  Click file to upload. Once finished, close browser.