TEKVOX MMX88 Matrix Switcher - Manual (Page 30)

Modular Matrix Switcher 8x8 (with Audio)
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Step5. Change IP/Serial Port
 Change IP
a) Select the tab
“system info”, and you will be able to change the IP.
b) Press the Apply button to save your settings. The PC(s) in this LAN
(connected with this router) will then be able to control the matrix switcher.
 Change Serial Port
a) Select the tab
“serial info”, and you will then be able to change the serial
port.
b) Set the port number to 4001 (unique, other numbers are unavailable).
c) Press the Apply button on present page to save your settings.
Step6. Select the tab
“reset device”, and your settings will be loaded to the Modular
Matrix Switcher 8x8 (with Audio).