Re: Crossover function in the standard.
- From: Trebor Mushroom <trebor@xxxxxxxxxxxxxxx>
- Date: Thu, 26 Jun 2008 21:53:40 +0100
Bod43@xxxxxxxxxxxxx wrote:
On 24 Jun, 02:56, glen herrmannsfeldt <g...@xxxxxxxxxxxxxxxx> wrote:> How do you test them?
I would worry first of all about your cables. Are the pairs
wired correctly?
Ready-made, certified cables tested using stock standard cable tester.
With regard to my original question, I dig deeper and have found
some problems with MB layout. Basically the network adapter
(Intel btw) is completely integrated in the chipset, with just four
lines on the outside (+ 3 lines to control LEDs). On the motherboard
there is only integrated RJ45 module jack (with transformer & LEDs).
The design violates the rules regarding the length and spacing
of the routes. I still have to find what exactly is wrong with
it but probably too long tracks increase loses to unacceptable
level and it doesn't work with some adapters.
Best regards,
Trebor.
.
- Follow-Ups:
- Re: Crossover function in the standard.
- From: glen herrmannsfeldt
- Re: Crossover function in the standard.
- References:
- Crossover function in the standard.
- From: Trebor Mushroom
- Re: Crossover function in the standard.
- From: glen herrmannsfeldt
- Re: Crossover function in the standard.
- From: Bod43
- Crossover function in the standard.
- Prev by Date: Re: Query related to a stp and vlan case
- Next by Date: Re: Mac address and VLAns
- Previous by thread: Re: Crossover function in the standard.
- Next by thread: Re: Crossover function in the standard.
- Index(es):
Relevant Pages
|