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3Com U.S. Robotics Faxmodem 56K Questions & Answers
Power supply for 3Com U.S. Robotics fax modem.
You need 9V/1A supply (with +9V at center pin) for your model with beige case. Do not use 22V/1.5A supply for old 33.6k model with
gray case. The shapes of the cases are very similar (56k has fever
leds, no external volume control, and no connectors for external
telephone equipment and external speaker), but the power supply
voltages and currents are completely different.
I hope this will help.
2/11/2009 7:16:50 AM •
3Com U.S....
•
Answered
on Feb 11, 2009
I have AVI Video and it only plays sound
Ok it is may be do you to system is old needs up to date , so that the video may not have downloaded completely from the source web portal. The media player present in your handset is outdated.
Db9 rj45 pinout
Here is the standard pinout for a console port on a router to seriel port for computers
HI,
I have two 3com
I don't know anything about these units, nor do I have time to source any docs for you, but maybe you can try connecting a PC directly to the port your patch panel is connecting the the switch from, you can at least see if that port is working.
My next and only other suggestion is to invest in a "LAN cable tester". In my area, you can find cheap ones for U$20.
The tester will allow you to check connectivity between any two ports, and allows you to test both patch links and individual CAT5/6 cables.
Good luck!
Facebook recovery
notify the police dept / person handling the case and let them know about the face book information
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