 EGeezerSummertimePremium
join:2002-08-04
Midwest
kudos:7
 ·Callcentric
2 edits | reply to SpannerITWks
Re: Relay switching idea - Actually, I like the power switch - quite simple and creative I'd use the variable resistor idea with that to set my delay time if I were using it.
For the CAT5 switch, one would need to test to find a relay that would switch all the signal carrying wires and not introduce EMF or reactance into the CAT5 line, altering the efective impedance or introducing noise into the wire.
Open loops could also act as antennas introducing stray noise that might produce interesting results as the NIC picks them up. For that case, you might need a DPDT relay with the "off" position terminating in a dummy load.
Although routers, firewalls, Surfboards etc are good pieces of protection, The time-delay power relay is a novel way to satisfy someone's need for extra caution. I enjoy creative and simple answers to technological issues and hope someone breadboards it and reports back... 
Edit
One thought - wouldn't there be issues when the modem goes up after the PC? If the PC gets IP from DHCP provided through the modem, it would need to retry - or you'd need to batch execute ipconfig /renew /all after modem power up for some systems.
/edit |
|
BPremium,MVM
join:2000-10-28
1 edit | DHCP under Windows these days is really pretty good about that. I've seen addresses come up nearly instantly the moment the DHCP server was back on-line.
The problem is more on the boot side. It can take many seconds longer to boot as the machine searches in vain for its address.
Of course, I prefer static IP addressing in home networks anyway.
-- B
--
In a realm outside causality and function |
|
EGeezerSummertimePremium
join:2002-08-04
Midwest
kudos:7 Reviews:
·Callcentric
| Hi B  ,
Good points - I note, though, that WIN98 ain't too good at recovery or initialization compared to XP/2K/2K3.
I use statics on stuff behind a router and NAT and disable DHCP, but the single PC behind a DSL/Cable modem still looks for DHCP and, particularly if it's WIN9X, craps out if the modem isn't there.
(corrections welcome!)
EG |
|
BPremium,MVM
join:2000-10-28 | I don't think it craps out permanently in Win9x. It can just take a really long time. The only time I've seen it regularly fail to boot is if the Novell client is installed.
That thing just sucks.
-- B
--
In a realm outside causality and function |
|
