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9 pin D-SUB female connector layout
9 pin D-SUB female connector
Belkin DB9-to-RJ11 Serial Flash Cable schematic

This is a cable pinout for Belkin KVMs with RJ11 for Flashing ( OmniView Pro3: F1DA104Z, F1DA108Z or F1DA116Z - maybe others but this have to be verified).


Pin Number
Pin Name
Direction KVM RJ11
Pin Number
Pin Name
2   RXD <-- 1 Tx Receiver 
3   TXD --> 2 Rx Transmitter 
5 GND  --- 4 GND Ground 
All other pins have to be left unconnected.

Tested with Belkin OmniView Pro3 8-port KVM ( F1DA108Z ) .

For firmware update instruction (for OmniView Pro3) look for document "Firmware Upgrade Instructions for Pro3 KVM Switches", to update, use dedicated application "Upgrade Utility 1.2" (or newer - should be available with the firmware for your OmniView).

4 pin RJ11 male connector layout
4 pin RJ11 male connector
According to 1 reports in our database (1 positive and 0 negative) the Belkin DB9 to RJ11 Serial Flash Cable pinout should be correct.

Is this pinout
Belkin DB9 to RJ11 Serial Flash Cable visual pinout:click to enlarge
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