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networking:cisco-1921 [18/11/2025 16:04] – [Running Config] andrewnetworking:cisco-1921 [29/03/2026 12:40] (current) – [Background] andrew
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 Also, there is a USB port in addition to the serial connector, this implements a usb to serial converter internally, it shows up as ''/dev/ttyACM0''. Also, there is a USB port in addition to the serial connector, this implements a usb to serial converter internally, it shows up as ''/dev/ttyACM0''.
    
-{{ :networking:cisco-ehwic-sfp.png?100|Without SFP module}}+
 Note this is NOT the direct fibre from the ISP, they provide a single WDM / TDM fibre to the Optical Network Terminator (ONT) as part of the G-PON WAN network, then a Ethernet copper RJ45 from the ONT to a fibre converter and on to the 1941 SFP fibre in a different building. Note this is NOT the direct fibre from the ISP, they provide a single WDM / TDM fibre to the Optical Network Terminator (ONT) as part of the G-PON WAN network, then a Ethernet copper RJ45 from the ONT to a fibre converter and on to the 1941 SFP fibre in a different building.
  
-{{:networking:ehwic-1ge-sfp.png?200|sfp fibre module fitted}}+{{:networking:ehwic-1ge-sfp.png?150|sfp fibre module fitted}} 
 +{{:networking:cisco-ehwic-sfp.png?150|Without SFP module}}
  
  
networking/cisco-1921.txt · Last modified: by andrew

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