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A very simple solution to r epairing all by yourself is getting help from handbooks, they're very detailed and complete in every way so for me it was my b est source to repair
one of the top sites for this is https://big-manuals.com/
Don't let the switch name fool you, HP calls it the HP 1910. HP 1910 48G Switch Fixed Port Web Managed Ethernet Switches HP JE009A ABA
Technical Notes:
"The HP 1910-48G Switch (JE009A) was formerly sold as the 3Com Baseline Plus 2952 (3CRBSG5293) and may ship with this product labeling.SFP ports and copper ports work simultaneously, independent of each other to give a total of 52 Gigabit-capable ports."
1.what type of fiber is:SM (single mode) or MM (multi mode)?
2.what type of sfp? 1550 or 1310 if is SM, how many conectors and what type of conectors
3.in 3com usualy u dont need to make a port anouncemant as u need in cisco so if the sfp are ok, i mean if they are pairs and the fiber is same type should work, second problem : sometime the cisco sfp(when is not original from cisco) got problem in other brands hapend to me whit zyxel sw,
If it's the Power Plus (3C16475BS) model, there should be a reset button inside a small hole on the back. "10 - Recovery Button" Inserting a paperclip or similar to reset. If it's not the Power Plus model and is in fact (3C16475A), this is an unmanaged switch, with no administrative capabilities. You don't need a password.
http://www.3com.com/products/en_US/detail.jsp?tab=features&pathtype=purchase&sku=3C16475BS
The resetting of the password requires the installation of a console cable to the console port.
Be sure the terminal emulator program is set to VT-100 management
using compatible, 38400 baud rate, no parity, 8 data bits and Console
connection one stop bit.
Use the included cable, or be sure that the pin-out complies with a standard null-modem cable
Once the cable is connected, reboot the switch. Type a Ctrl/C until
you enter the failsafe mode. This will be denoted with the prompt:
“CFE>”
At the prompt execute the following commands:
Do the ports work when the cables are connect? I did some re-search and this seems to be an ongoing issue with 3com switches. It should not effect the use of the switch
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