3com Officeconnect 8port switch

[willawake]

another one of these. nice easy job



opening it up

[willawake]

Re: 3com Officeconnect 8port switch



1 x Taicon 1000uf 35v 2K10(M) 105oC VZ
3 x Gloria 1500uf 6.3v 105oC GAE

ESR measured Taicon (0.6 ohm) Gloria (2.0 - 2.3 ohm)

[willawake]

Re: 3com Officeconnect 8port switch



replaced with what panasonic FC i had
1500uf 10v (0.03 ohm)
1000uf 50v (0.03 ohm)

these switches take 10-30v dc. power pack for this switch is actually 14v. but the 8 port hubs have a 24v power pack. The large cap could therefore be a 16v if the power supply is only 14v. but to keep to the correct spec written on the outside 35v+ is the correct value and useful anyway if you wished to swap the power pack from a hub to the switch in future if the switches power supply failed.



alternative hole clearer

works fine, no hissing now. actually these units seem to work fine even with badcaps. you can find them in small offices all over. a nice buy on the secondhand market as they have no fans inside and the wall wart power supplies seem to last for years.