Serial Cable Voltage

V4mpiro · 22-July-03, 05:32 PM

Does anyone know what the voltage and that a standard serial cable caries, or am i going to have to cut one open and find out?

Banana Boy · 22-July-03, 05:38 PM

250mV

V4mpiro · 22-July-03, 06:15 PM

alright.... what the heck are mv's? I know they are a measure of voltage, but is that metric volts or something? I want the standard volts if you dont mind.

Banana Boy · 22-July-03, 06:16 PM

millivolts. 1000mV = 1 Volt. Thus, 250mV = 0.25 Volts.

V4mpiro · 22-July-03, 06:18 PM

thank you I had never heard of millivolts before.

Banana Boy · 22-July-03, 06:23 PM

Yeah no problem. Glad you learned something. That's what were here for. And just for your information if you need it; ATA cables use 5 Volts (5000mV). SATA cables use 0.25 Volts (250mV).

V4mpiro · 22-July-03, 06:26 PM

We may have had a missunderstanding, I am talking about serial cables that go to monitors and printers not Serial ATA cables. .25 volts is SATA cables or Serial cables, or both?

Banana Boy · 22-July-03, 06:31 PM

Serial, Parallel Port, IDE, PS2 etc. are 5 Volts. Serial ATA are 0.25 volts. Sorry missunderstanding there.

V4mpiro · 22-July-03, 06:33 PM

lol It's ok im glad i caught that though. The reason I questioned it was the fact that there are converting cables between usn and serial cables so i figured they should be on the same voltage, and the fact taht you mentioned ATA cables when that was no where near what i was talking about.

Banana Boy · 22-July-03, 06:37 PM

Okay good. Glad I could be of help. Glad I filled in the blank.

jcarkeys · 22-July-03, 09:16 PM

V4mp, Volts ARE metric. As are calories. But, always remember,

m=1/1000
c=1/100
k=1000

V4mpiro · 22-July-03, 09:53 PM

OK i gotcha so it is K(ilo)angaroos h(ecto)opping d(eka)own m(eters or base unit)ountains d(deci)rinking c(ent)hocolate m(illi)ilk

Wixx · 27-July-03, 07:18 PM

Your easiest place to get voltage is going to be directly from a molex connector. Then I'd try USB next which will give you up to 500mA (500 milliamps or half of one amp) at 5V.

What's this project for anyway?

V4mpiro · 27-July-03, 08:10 PM

Flash light like the one in the How-to's in the articles, so i decided instead of using a valuable USB port i could use a serial port instead, but it turns out not enough amps.

22-July-03, 05:32 PM		#1 (permalink)
V4mpiro Apex Tech Fanatic	Serial Cable Voltage Does anyone know what the voltage and that a standard serial cable caries, or am i going to have to cut one open and find out?

22-July-03, 05:38 PM		#2 (permalink)
Banana Boy Apex Tech Maniac Supreme	250mV Last edited by Banana Boy; 22-July-03 at 05:54 PM..

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22-July-03, 06:15 PM		#3 (permalink)
V4mpiro Apex Tech Fanatic	alright.... what the heck are mv's? I know they are a measure of voltage, but is that metric volts or something? I want the standard volts if you dont mind.

22-July-03, 06:16 PM		#4 (permalink)
Banana Boy Apex Tech Maniac Supreme	millivolts. 1000mV = 1 Volt. Thus, 250mV = 0.25 Volts.

22-July-03, 06:18 PM		#5 (permalink)
V4mpiro Apex Tech Fanatic	thank you I had never heard of millivolts before.

22-July-03, 06:23 PM		#6 (permalink)
Banana Boy Apex Tech Maniac Supreme	Yeah no problem. Glad you learned something. That's what were here for. And just for your information if you need it; ATA cables use 5 Volts (5000mV). SATA cables use 0.25 Volts (250mV).

22-July-03, 06:26 PM		#7 (permalink)
V4mpiro Apex Tech Fanatic	We may have had a missunderstanding, I am talking about serial cables that go to monitors and printers not Serial ATA cables. .25 volts is SATA cables or Serial cables, or both?

22-July-03, 06:31 PM		#8 (permalink)
Banana Boy Apex Tech Maniac Supreme	Serial, Parallel Port, IDE, PS2 etc. are 5 Volts. Serial ATA are 0.25 volts. Sorry missunderstanding there.

22-July-03, 06:33 PM		#9 (permalink)
V4mpiro Apex Tech Fanatic	lol It's ok im glad i caught that though. The reason I questioned it was the fact that there are converting cables between usn and serial cables so i figured they should be on the same voltage, and the fact taht you mentioned ATA cables when that was no where near what i was talking about.

22-July-03, 06:37 PM		#10 (permalink)
Banana Boy Apex Tech Maniac Supreme	Okay good. Glad I could be of help. Glad I filled in the blank.

22-July-03, 09:16 PM		#11 (permalink)
jcarkeys Key Hoe	V4mp, Volts ARE metric. As are calories. But, always remember, m=1/1000 c=1/100 k=1000

22-July-03, 09:53 PM		#12 (permalink)
V4mpiro Apex Tech Fanatic	OK i gotcha so it is K(ilo)angaroos h(ecto)opping d(eka)own m(eters or base unit)ountains d(deci)rinking c(ent)hocolate m(illi)ilk

27-July-03, 07:18 PM		#13 (permalink)
Wixx Modd-God	Your easiest place to get voltage is going to be directly from a molex connector. Then I'd try USB next which will give you up to 500mA (500 milliamps or half of one amp) at 5V. What's this project for anyway?

27-July-03, 08:10 PM		#14 (permalink)
V4mpiro Apex Tech Fanatic	Flash light like the one in the How-to's in the articles, so i decided instead of using a valuable USB port i could use a serial port instead, but it turns out not enough amps.