Monitor cable

I bought a used monitor at a local auction. Its supposed to work, but
is missing the power cable and data cables. The power cable is just a
standard computer cable, but that data cable plug on the monitor looks
exactly like the one one the computer. 3 rows of pins that total 15
pins.

Is this a standard type of cable, or is this something I'll have to
order from HP (brand of the monitor)? I'm not sure if you refer to that
as a male or female end. My guess would be male since the pins stick
out, but the whole end is indented, while the whole end on the computer
sticks out.

Thanks

On Mar 9, 9:19*am, wrote:
I bought a used monitor at a local auction. *Its supposed to work, but
is missing the power cable and data cables. *The power cable is just a
standard computer cable, but that data cable plug on the monitor looks
exactly like the one one the computer. *3 rows of pins that total 15
pins.

Is this a standard type of cable, or is this something I'll have to
order from HP (brand of the monitor)? *I'm not sure if you refer to that
as a male or female end. *My guess would be male since the pins stick
out, but the whole end is indented, while the whole end on the computer
sticks out.

Thanks

standard VGA monitor cable, try surplus outlets.

wrote in :

I bought a used monitor at a local auction. Its supposed to work, but
is missing the power cable and data cables. The power cable is just a
standard computer cable, but that data cable plug on the monitor looks
exactly like the one one the computer. 3 rows of pins that total 15
pins.

Is this a standard type of cable, or is this something I'll have to
order from HP (brand of the monitor)? I'm not sure if you refer to that
as a male or female end. My guess would be male since the pins stick
out, but the whole end is indented, while the whole end on the computer
sticks out.

Thanks



Definitely a 'male' connector, you got it right, it's the pins, never mind
housing protrusions or lack of, that define that. Weird that it's got pins on
the chassis connector. it might work with a standard VDU extension cable and
a 'gender changer' adapter, but it's worth looking for a manual to confirm.
Anything that doesn't have a captive cable usually has quality good enough
that a proper manual got written for it.

In message ,
Lostgallifreyan writes:
wrote in :

I bought a used monitor at a local auction. Its supposed to work, but
is missing the power cable and data cables. The power cable is just a
standard computer cable, but that data cable plug on the monitor looks
exactly like the one one the computer. 3 rows of pins that total 15
pins.

Is this a standard type of cable, or is this something I'll have to
order from HP (brand of the monitor)? I'm not sure if you refer to that
as a male or female end. My guess would be male since the pins stick
out, but the whole end is indented, while the whole end on the computer
sticks out.

Thanks



Definitely a 'male' connector, you got it right, it's the pins, never mind
housing protrusions or lack of, that define that. Weird that it's got pins on
the chassis connector. it might work with a standard VDU extension cable and

Not really: standard practice _should_ be that signals come out of
sockets (female connectors), whether power or signal; the reasoning
being that if signals came out of pins, (a) you could accidentally short
them together or to ground [and thus damage the electronics that are
generating the signals], (b) you could touch live contacts [and thus
damage yourself if it's a power lead]. Obviously there have to be
compromises with bidirectional connectors like a serial port.

a 'gender changer' adapter, but it's worth looking for a manual to confirm.
Anything that doesn't have a captive cable usually has quality good enough
that a proper manual got written for it.

(Is the connector dark blue? If so, it's almost certainly standard VGA.
If not, it probably still is.)

Is it CRT or LCD? Have you powered it, and if so does it show anything?

http://goo.gl/WKZP5 might do you, or http://goo.gl/zgf9z.

If it's HP, probably worth looking on their website to see if there's a
manual downloadable.
--
J. P. Gilliver. UMRA: 1960/1985 MB++G.5AL-IS-P--Ch++(p)Ar@T0H+Sh0!:`)DNAf

If you believe in telekinesis, raise my right hand

"J. P. Gilliver (John)" wrote in
:

Definitely a 'male' connector, you got it right, it's the pins, never
mind housing protrusions or lack of, that define that. Weird that it's
got pins on the chassis connector. it might work with a standard VDU
extension cable and

Not really: standard practice _should_ be that signals come out of
sockets (female connectors), whether power or signal; the reasoning
being that if signals came out of pins, (a) you could accidentally short
them together or to ground [and thus damage the electronics that are
generating the signals], (b) you could touch live contacts [and thus
damage yourself if it's a power lead]. Obviously there have to be
compromises with bidirectional connectors like a serial port.



I agree on all those points (and stay with that guidance whenever possible,
especially on a small off-grid solar power system I set up here...). But that
raises the question of why VDU's break protocol. There's no doubt they do. I
have two 17" ELO touchscreen monitors (good price on eBay but their new cost
would be beyond most people, not just me). I've seen connectors instead of
captive plugs on other VDU's too, and all used female chassis connectors and
male line plugs. Same applies on KVM switches. I can think of two reasons: 1,
damaged connectors are usually cheaper and easier to replace on cables than
on hardware. 2, cables can be connected either end to either end without
worrying about a wrong way. Signal electronics should survive a short-
circuit, the driving devices are usually chosen for it, most op-amps can cope
with this. They may use a low value output resistor to limit current, too.
RS-232 is especially tolerant. Not only short-resistant despite using up to
+/- 15V, I think it can survive 100V getting shoved up it, though I don't
know why anyone would specify that, other than maybe because long lines can
pick up inductive and capacitative surges that might manage that high a
voltage, and because it's often used in industry, running in ducts with other
cables with varied voltages and current in them. (Which is incidentally why
USB will never kill the serial port! In industry, USB is probably considered
an office toy for use in small, protected rooms. If speed is needed, twisted
pair ethernet would be used, or some other resiliant method, according to a
sysadmin who showed me round a factory once).

On the KVM switch I have, its own supplied VDU cables do have a 'right way
round', because they are effectively extension cables, so captive-lead VDU's
see their ends (female) as if they were hardware sockets. This is likely why
that auction-bought monitor has a male chassis connector. It lets a person
use any standard VDU extension cable. ELO's monitors are expensive so they
chose to go with the unusual (but standard) hardware convention, and supply
their own double male ended cable, which must be used either directly, or via
an male-to-female extension as I do it. Both types of cables can be bought on
eBay, too. (I had to find a tiny 1-foot long M-F one to make a small 1U rack
ITX machine that I built, such that no onboard connectors ever got physical
stress in use.)

wrote:
I bought a used monitor at a local auction. Its supposed to work, but
is missing the power cable and data cables. The power cable is just a
standard computer cable, but that data cable plug on the monitor looks
exactly like the one one the computer. 3 rows of pins that total 15
pins.

Is this a standard type of cable, or is this something I'll have to
order from HP (brand of the monitor)? I'm not sure if you refer to that
as a male or female end. My guess would be male since the pins stick
out, but the whole end is indented, while the whole end on the computer
sticks out.

Thanks


This is an example of a VGA cable. Looks like a male.

http://www.screencapturenews.com/wp-...-connector.jpg

This is a VGA connector on a monitor. A female.

http://vgatodvicable.com/wp-content/...-connector.jpg

By the way, don't freak out if pin 9 is missing, on the new
cable you're buying. That's on purpose. Pin 9 carried +5V,
from the computer to the monitor. I think the intention might
have been, to allow querying the monitor if the monitor was
switched off and the computer was running. My pin 9 is missing,
and I'm not missing any functionality at all. All works as
expected. The +5V obviously isn't needed.

http://en.wikipedia.org/wiki/VGA_connector

The cable will likely be male to male, for connecting the computer
to the monitor. Like this picture.

http://images17.newegg.com/is/image/newegg/12-117-638-Z01?$S640W$

If you perhaps, made a mistake, and bought too short a male to male
cable, they make male to female extension cords, like this. When
a monitor has a "captive cable", like the cable on my current
monitor, you can't unplug the monitor end, and then one of
these extension cords can be used to make it longer. The
longer the cable you use, the lower the resolution you can
use on the VGA setup, before it gets fuzzy. 50 feet of
cable might drop you down to 1024x768 for example, due
to the fall off in high frequency response (you can try a
high setting, like 1920x1080, but then it would look fuzzy).
As long as you use some common sense, that's not going to be an issue.
6 feet of cable isn't going to hurt anything. But if you want to
go from attic to basement, think again. There are low loss versions
of VGA cables, but they're priced for rich people.

http://images17.newegg.com/is/image/newegg/12-576-021-Z01?$S640W$

Paul

In message ,
Lostgallifreyan writes:
[signals out of female connectors into male ones]
I agree on all those points (and stay with that guidance whenever possible,
especially on a small off-grid solar power system I set up here...). But that
raises the question of why VDU's break protocol. There's no doubt they do. I

Though it seems the OP has one that doesn't (male [pins] on the monitor
end).

have two 17" ELO touchscreen monitors (good price on eBay but their new cost
would be beyond most people, not just me). I've seen connectors instead of
captive plugs on other VDU's too, and all used female chassis connectors and
male line plugs. Same applies on KVM switches. I can think of two reasons: 1,
damaged connectors are usually cheaper and easier to replace on cables than

And male (pins) connectors are more likely to get damaged.

on hardware. 2, cables can be connected either end to either end without

(I hadn't thought of that aspect.)

worrying about a wrong way. Signal electronics should survive a short-
circuit, the driving devices are usually chosen for it, most op-amps can cope
with this. They may use a low value output resistor to limit current, too.

Indeed, though I'd not like to rely on it.

RS-232 is especially tolerant. Not only short-resistant despite using up to
+/- 15V, I think it can survive 100V getting shoved up it, though I don't
know why anyone would specify that, other than maybe because long lines can
pick up inductive and capacitative surges that might manage that high a

(I have just such experience - we used a BBC model B as a dumb terminal
to a VAX, lead running the entire length of a long building. After an
electrical storm, we had to replace something in the Beeb. Only happened
once.)

voltage, and because it's often used in industry, running in ducts with other
cables with varied voltages and current in them. (Which is incidentally why
USB will never kill the serial port! In industry, USB is probably considered
an office toy for use in small, protected rooms. If speed is needed, twisted

USB has a pretty short maximum length, too. (You can get extenders, but
they have electronics in them.)

pair ethernet would be used, or some other resiliant method, according to a
sysadmin who showed me round a factory once).

On the KVM switch I have, its own supplied VDU cables do have a 'right way
round', because they are effectively extension cables, so captive-lead VDU's
see their ends (female) as if they were hardware sockets. This is likely why
that auction-bought monitor has a male chassis connector. It lets a person
use any standard VDU extension cable. ELO's monitors are expensive so they

(I think he said the monitor he bought is HP.)

chose to go with the unusual (but standard) hardware convention, and supply
their own double male ended cable, which must be used either directly, or via
an male-to-female extension as I do it. Both types of cables can be bought on
eBay, too. (I had to find a tiny 1-foot long M-F one to make a small 1U rack
ITX machine that I built, such that no onboard connectors ever got physical
stress in use.)

I know, I included a couple of links (shortened) in my post. I had to
trawl a while to find the male-to-female though - you're right, the
male-to-male is commoner. (I did find lots of [short] Y leads, which
would have suited your requirement.)
--
J. P. Gilliver. UMRA: 1960/1985 MB++G.5AL-IS-P--Ch++(p)Ar@T0H+Sh0!:`)DNAf

The main and the most glorious achievement of television is that it is killing
the art of conversation. If we think of the type of conversation television is
helping to kill, our gratitude must be undying. (George Mikes, "How to be
Inimitable" [1960].)

In message , Paul
writes:
wrote:
I bought a used monitor at a local auction. Its supposed to work, but
is missing the power cable and data cables. The power cable is just a
standard computer cable, but that data cable plug on the monitor looks
exactly like the one one the computer. 3 rows of pins that total 15
pins.

Is this a standard type of cable, or is this something I'll have to
order from HP (brand of the monitor)? I'm not sure if you refer to that
[]
This is a VGA connector on a monitor. A female.

http://vgatodvicable.com/wp-content/...-connector.jpg

I don't think that's on a monitor - it has a symbol of a monitor moulded
above it, which wouldn't be likely on a monitor. (Anyway, the OP has
confirmed that - unusually - the monitor he's bought has a male
connector.)
[]
http://en.wikipedia.org/wiki/VGA_connector

I think that's where you got the above image (-:.
[]
longer the cable you use, the lower the resolution you can
use on the VGA setup, before it gets fuzzy. 50 feet of

Well, it's a combination of cable length, cable quality, and drive
electronics (and possibly receive electronics).

cable might drop you down to 1024x768 for example, due
to the fall off in high frequency response (you can try a
high setting, like 1920x1080, but then it would look fuzzy).

50 feet of all but the most expensive cable will drop you well below
that (-:! It's more "ringing" - you get echoes, especially on vertical
lines - than fuzzy, though not that different.
[]
--
J. P. Gilliver. UMRA: 1960/1985 MB++G.5AL-IS-P--Ch++(p)Ar@T0H+Sh0!:`)DNAf

The main and the most glorious achievement of television is that it is killing
the art of conversation. If we think of the type of conversation television is
helping to kill, our gratitude must be undying. (George Mikes, "How to be
Inimitable" [1960].)

In message , MotoFox
confucius-say@enlightenment!to!him!lead!it!for!bangpath!foll ow!man!wise.
UUCP writes:
And it came to pass that J. P. Gilliver (John) delivered the following
message unto the people, saying~

50 feet of all but the most expensive cable will drop you well below that
(-:! It's more "ringing" - you get echoes, especially on vertical lines -
than fuzzy, though not that different. []

Inductive and capacitive crosstalk. It's basically the same thing that
used to cause the eerie "whistling" noise on analogue telephone trunk
lines (noise from adjacent lines bleeds through onto each other. You
never were truly "alone" in the old system!)

Crosstalk I can understand, but a whistling? That's surely more to do
with bounces (reflections) than crosstalk.

That can happen on long cable runs.

--
_ _ ______________ ___________ __

/ \/ \/ __ _ _ __ \/ __ __ \/ /

/ /\/\ /_/ // // /_/ / __// /_/ /\ \

/_/ \____//_/ \______/ \____//_/\_\ !i84w!exit210!304senye!motofox

Blank lines!
--
J. P. Gilliver. UMRA: 1960/1985 MB++G.5AL-IS-P--Ch++(p)Ar@T0H+Sh0!:`)DNAf

"Mr. Notlob, there's nothing wrong with you that an expensive operation can't
prolong!" - Monty Python

"J. P. Gilliver (John)" wrote in
:

I know, I included a couple of links (shortened) in my post. I had to
trawl a while to find the male-to-female though - you're right, the
male-to-male is commoner. (I did find lots of [short] Y leads, which
would have suited your requirement.)


I'd have had to cut, or stow unused part in space I didn't have (small 1U
rack..). Also, I needed a socket end I could adapt easily to a chassis mount.
THAT took some extra hunting. Same applied to the short ethernet link...