Today's Message Index:
----------------------
1. 02:41 AM - Icom A210 Wiring Q.. (chris Sinfield)
2. 06:08 AM - Re: Icom A210 Wiring Q.. (Mike Welch)
3. 07:52 AM - Re: Icom A210 Wiring Q.. (Robert L. Nuckolls, III)
4. 08:24 AM - Re: Icom A210 Wiring Q.. (Don Hudgeon)
5. 10:37 AM - Heated pitot Question (Peter Mather)
6. 11:12 AM - Re: Heated pitot Question (Robert L. Nuckolls, III)
7. 11:14 AM - Re: Icom A210 Wiring Q.. (Robert L. Nuckolls, III)
8. 11:57 AM - Re: Heated pitot Question (Bob McCallum)
9. 02:16 PM - Re: Icom A210 Wiring Q.. (Don Hudgeon)
10. 06:52 PM - terminate shielded cables in Sub D (Ianrat)
11. 07:50 PM - Re: terminate shielded cables in Sub D (Robert L. Nuckolls, III)
12. 07:50 PM - Re: wire squash connections (Franz Fux)
13. 07:52 PM - Re: Icom A210 Wiring Q.. (Robert L. Nuckolls, III)
14. 07:53 PM - Re: Re: Low resistance measurement adapter. (Don)
15. 09:17 PM - Re: terminate shielded cables in Sub D (Ianrat)
Message 1
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| Subject: | Icom A210 Wiring Q.. |
Hi everyone.
I am wiring up my 2 seater plane and have a few Q's after reading all the info.
I will just use the internal 2 place hot mic intercom system. The wiring diagram
has an external intercom switch. Do I still need it and what is it for?
Also there are 2 options for the rear radio connection. A 30 pin molex or a 15
pin D sub.
What have people been using to connect to? Pros and cons?
I want to use the 3 audio inputs and can not see how I can do this with the D sub
and without a separate intercom box.
Also it calls for a 10 Amp CB not a fuse? is this so if you get a hot TX mic you
can pull the CB?? the Aero Electric connection guide only a 5 amp fuse for the
Icom 200/A210?? Am I missing somthing?
Chris..
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=329696#329696
Message 2
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| Subject: | Icom A210 Wiring Q.. |
> I will just use the internal 2 place hot mic intercom system. The wiring
diagram has an external intercom switch. Do I still need it and what is it
for?
>
> Also there are 2 options for the rear radio connection. A 30 pin molex or
a 15 pin D sub.
>
> What have people been using to connect to? Pros and cons?
>
> I want to use the 3 audio inputs and can not see how I can do this with t
he D sub and without a separate intercom box.
>
> Also it calls for a 10 Amp CB not a fuse? is this so if you get a hot TX
mic you can pull the CB?? the Aero Electric connection guide only a 5 amp f
use for the Icom 200/A210?? Am I missing something?
>
> Chris..
Hi Chris=2C
A few months ago=2C I asked many of the same questions to this list. I t
hink it was Bob N.
that suggested the DB15 plug. I am very pleased with the plug for a connec
tion.
I also wondered about using the internal intercom in my Icom A200. Some
guys said
they weren't especially thrilled with the internal intercom=2C and I would
be better off with
a separate panel mount one.
Although I didn't have a panel mount intercom=2C I did have a portable So
ftComm intercom=2C
and made a rectangular hole for it in my console. For the most part=2C it
looks like a built-in
model=2C and what is really nice is=2C it has all the plug receptacles and
so forth already available.
I simply took it apart and added a few wires for the things I needed to c
onvert it to panel
mount style. Wires like: positive and negative "hot"=2C so that I didn't n
eed the 9 volt battery=2C
Icom hookup wires=2C and I added the Dynon audio alarm signal to one of the
"audio in" locations.
(as per the SoftComm tech guy's approval).
After I got the whole arrangement finished=2C I'm very pleased with the r
esults! The DB15 plug
is the perfect choice=2C the separate intercom allows for more control of i
ntercom functions ( I
believe)=2C and any additional audio requirements like alarms=2C music=2C e
tc. are very easy to add.
Regarding the circuit breaker=2C the Icom installaion is not real clear.
One place says 10A=2C
then another refers to 5A. (or some kind of confusion like that). I think
I called Icom=2C but in
any event=2C I went with the 5A breaker. I think it was in the Icom's spec
s where it says it's
maximum current was around 2 amps. I have mine hooked up to a 5A breaker
=2C but I seem to
recall someone on this list said a 10A breaker would hurt. I'd just go wit
h 5.
BTW=2C there are a few intercom companies that I found that have wiring d
iagrams for
their particular intercom models to hook up to various aircraft comm radios
. Sigtronics
is one that I know of. I used their wiring diagram to coach me through the
SoftComm wiring
points. Once I felt like I had everything figured out=2C I called and veri
fied I was on the right path
with SoftComm. Worked perfect on the initial test!!!
Mike Welch
Message 3
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| Subject: | Re: Icom A210 Wiring Q.. |
At 05:37 AM 2/5/2011, you wrote:
<chris_sinfield@yahoo.com.au>
I will just use the internal 2 place hot mic intercom system. The
wiring diagram has an external intercom switch. Do I still need it
and what is it for?
The manuals are not helpful as to the function of this
switch. With a voice activated intercom, you don't need
the press-to-talk button associated with hot-mike intercoms.
However, I would suggest you bring some wires out
for this switch and then explore what it does after
you've got it up and running. It may be a handy way
to turn the intercom function OFF . . . which could
be handy if you're busy talking to controllers and you
don't want inadvertent conversation from the right seat
passenger to go out on the radio.
For all of ICOM's expertise in electronics, their
manuals leave some things to be desired. Perhaps
somebody here on the List has explored the function
of that switch and can advise you.
Also there are 2 options for the rear radio connection. A 30 pin
molex or a 15 pin D sub.
As Mike pointed out, the D-Sub is much preferred . . . .
but it does not exactly parallel the Molex connnector
for wire functions. If you need ANY of the wires in
the Molex connector for your installation, then
you're pretty much stuck with that connector. It's
not a "bad" connector but the D-sub is much "better".
I want to use the 3 audio inputs and can not see how I can do this
with the D sub and without a separate intercom box.
Aha! you've discovered the missing wires in the D-sub.
If you want to use the internal audio isolation amplifier
you'll need to use the Molex.
Also it calls for a 10 Amp CB not a fuse? is this so if you get a hot
TX mic you can pull the CB?? the Aero Electric connection guide only
a 5 amp fuse for the Icom 200/A210?? Am I missing somthing?
No, that 5A fuse call out in my drawings is an artifact
from having produced a wiring diagram for the MicroAir
760. The manuals for the ICOM call out 5A max draw in
transmit, so you need to up size to 7A fuse, or 10A or
what ever. Remember, fuses and breakers protect wires.
A long as they're matched to the wire large enough to
avoid nuisance trips, then you're good to go.
I need go fix that drawing . . . which is about 10
years old. I'm going to up size to 7A fuse. I AM a bit
disappointed that you're the FIRST to have brought it
to my attention. Thanks!
Bob . . .
Message 4
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| Subject: | Re: Icom A210 Wiring Q.. |
Hello Chris
I have recently installed a A210 in my Kitfox. I just wired in a push button
switch (like a PTT) to the intercom switch wires. One push and it either
connects or disconnects the intercom. Works great for a noisy cockpit like
mine.
Cheers
Don
On Sat, Feb 5, 2011 at 6:47 AM, Robert L. Nuckolls, III <
nuckolls.bob@aeroelectric.com> wrote:
> nuckolls.bob@aeroelectric.com>
>
>
> At 05:37 AM 2/5/2011, you wrote:
> chris_sinfield@yahoo.com.au>
>
>
> I will just use the internal 2 place hot mic intercom system. The wiring
> diagram has an external intercom switch. Do I still need it and what is it
> for?
>
> The manuals are not helpful as to the function of this
> switch. With a voice activated intercom, you don't need
> the press-to-talk button associated with hot-mike intercoms.
> However, I would suggest you bring some wires out
> for this switch and then explore what it does after
> you've got it up and running. It may be a handy way
> to turn the intercom function OFF . . . which could
> be handy if you're busy talking to controllers and you
> don't want inadvertent conversation from the right seat
> passenger to go out on the radio.
>
> For all of ICOM's expertise in electronics, their
> manuals leave some things to be desired. Perhaps
> somebody here on the List has explored the function
> of that switch and can advise you.
>
>
> Also there are 2 options for the rear radio connection. A 30 pin molex or a
> 15 pin D sub.
>
> As Mike pointed out, the D-Sub is much preferred . . . .
> but it does not exactly parallel the Molex connnector
> for wire functions. If you need ANY of the wires in
> the Molex connector for your installation, then
> you're pretty much stuck with that connector. It's
> not a "bad" connector but the D-sub is much "better".
>
>
> I want to use the 3 audio inputs and can not see how I can do this with the
> D sub and without a separate intercom box.
>
> Aha! you've discovered the missing wires in the D-sub.
> If you want to use the internal audio isolation amplifier
> you'll need to use the Molex.
>
> Also it calls for a 10 Amp CB not a fuse? is this so if you get a hot TX
> mic you can pull the CB?? the Aero Electric connection guide only a 5 amp
> fuse for the Icom 200/A210?? Am I missing somthing?
>
> No, that 5A fuse call out in my drawings is an artifact
> from having produced a wiring diagram for the MicroAir
> 760. The manuals for the ICOM call out 5A max draw in
> transmit, so you need to up size to 7A fuse, or 10A or
> what ever. Remember, fuses and breakers protect wires.
> A long as they're matched to the wire large enough to
> avoid nuisance trips, then you're good to go.
>
> I need go fix that drawing . . . which is about 10
> years old. I'm going to up size to 7A fuse. I AM a bit
> disappointed that you're the FIRST to have brought it
> to my attention. Thanks!
>
>
> Bob . . .
>
>
Message 5
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| Subject: | Heated pitot Question |
I've got a heated pitot off a C182 (28V) that I want to use on a Tailwind
I'm building (www.tailwindbuild.blogspot.com). Originally I assumed that I
would not bother with the heater as the aircraft will not be used for IFR
(not allowed for experimentals in the UK) and will have a 14V electrical
system. But, as an experiment, I wired the pitot up to my bench supply and
at 14V it pulls 4amps and gets too hot to touch. Is there any reason not to
just wire it off the 14V supply? At 50W+ of heat it presumably is better
than nothing?
Thanks
Peter
Message 6
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| Subject: | Re: Heated pitot Question |
At 01:32 PM 2/5/2011, you wrote:
>I've got a heated pitot off a C182 (28V) that I want to use on a
>Tailwind I'm building
>(<http://www.tailwindbuild.blogspot.com>www.tailwindbuild.blogspot..com).
>Originally I assumed that I would not bother with the heater as the
>aircraft will not be used for IFR (not allowed for experimentals in
>the UK) and will have a 14V electrical system. But, as an
>experiment, I wired the pitot up to my bench supply and at 14V it
>pulls 4amps and gets too hot to touch. Is there any reason not to
>just wire it off the 14V supply? At 50W+ of heat it presumably is
>better than nothing?
Having a heated pitot tube was always an
option on Cessna single engine airplanes . . .
and not a cheap option either.
But if one watches some certification
programs for flight into known icing,
the idea that dumping few hundred watts of heat
into a pitot tube is a good and useful
thing to do becomes problematic.
The kind of ice that plugs a pitot tube
is also the kind of ice that covers
windshields, gathers on prop roots, leading
edges of wings. and any other sticky-out
thing like landing gear.
Any time you even THINK you've gathered
some ice, the prudent action is to take
immediate measures to get out . . . 180
turn, change altitude, etc. This (or a similar)
philosophy for icing encounters should have
you breathing easier in a much shorter
period of time . . . and probably before
the pitot tube ices over.
The pitot tube is but one of MANY potential
victims for ice accretion. Knowing the
true value of IAS is of little value when
the airplane wont fly well at any achievable
IAS.
Hooking your heater up to provide 1/4th the
design value for deicing energy is a whistle
in the dark when you need a good flashlight!
Bob . . .
Message 7
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| Subject: | Re: Icom A210 Wiring Q.. |
At 11:14 AM 2/5/2011, you wrote:
>Hello Chris
>
>I have recently installed a A210 in my Kitfox. I just wired in a
>push button switch (like a PTT) to the intercom switch wires. One
>push and it either connects or disconnects the intercom. Works great
>for a noisy cockpit like mine.
So if I interpret your words correctly, this button
is a push-enable/push-disable control for the intercom.
An when the intercom is enabled, it functions as the
legacy voice-activated intercom with adjustable squelch
levels. Does this sound right?
Thanks! Good data point.
Bob . . .
Message 8
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| Subject: | Heated pitot Question |
Peter;
You could do that if you wish but you will be generating only =BC of the
designed wattage. While this low level of heat might provide some
protection
you must remember that the wind-chill effect is considerable and that
while
it may be too hot to touch on the bench, when flying it may only be
slightly
warm. True values of 4 amps @ 14 volts provides just under 60 watts of
heat
(56) whereas on 28 volts you will get close to 230 watts , a significant
difference. The manufacturer obviously considered it prudent to provide
over
200 watts and =BC of that may not be adequate to accomplish much of
anything.
It would be your call to decide if it=92s worth it. A properly
functioning
pitot tube heating on the bench is not only too hot to touch, but will
come
close to branding you.
Bob McC
_____
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Peter
Mather
Sent: Saturday, February 05, 2011 1:32 PM
Subject: AeroElectric-List: Heated pitot Question
I=92ve got a heated pitot off a C182 (28V) that I want to use on a
Tailwind
I=92m building (www.tailwindbuild.blogspot.com). Originally I assumed
that I
would not bother with the heater as the aircraft will not be used for
IFR
(not allowed for experimentals in the UK) and will have a 14V electrical
system. But, as an experiment, I wired the pitot up to my bench supply
and
at 14V it pulls 4amps and gets too hot to touch. Is there any reason not
to
just wire it off the 14V supply? At 50W+ of heat it presumably is better
than nothing?
Thanks
Peter
Message 9
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| Subject: | Re: Icom A210 Wiring Q.. |
Hello Bob
That`s right. First I had a ordinary off/on toggle switch, but I found that
it had to toggled both ways each time in order to activate or deactivate the
intercom. Now I just push the switch once. I mounted the switch up next to
the radio so either side can activate. For my noisy cockpit I have the
intercom shut off always unless conversing with a passenger. It is also
possible to connect/disconnect on the radio but this requires finding the
function on the menu. Switch,much more convenient.
Cheers
Don
On Sat, Feb 5, 2011 at 10:10 AM, Robert L. Nuckolls, III <
nuckolls.bob@aeroelectric.com> wrote:
> nuckolls.bob@aeroelectric.com>
>
> At 11:14 AM 2/5/2011, you wrote:
>
>> Hello Chris
>>
>> I have recently installed a A210 in my Kitfox. I just wired in a push
>> button switch (like a PTT) to the intercom switch wires. One push and it
>> either connects or disconnects the intercom. Works great for a noisy cockpit
>> like mine.
>>
>
> So if I interpret your words correctly, this button
> is a push-enable/push-disable control for the intercom.
> An when the intercom is enabled, it functions as the
> legacy voice-activated intercom with adjustable squelch
> levels. Does this sound right?
>
> Thanks! Good data point.
>
>
> Bob . . .
>
>
Message 10
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| Subject: | terminate shielded cables in Sub D |
I have to run about 5 separate shielded wire back into a Sub D plug. What is the
best way to connect all of the shields together as the have to go to only one
pin. Should they soldered together and then only one lead to the pin.
Thank you.
Ianrat
CH601XLB
Brisbane Australia
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=329806#329806
Message 11
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| Subject: | Re: terminate shielded cables in Sub D |
At 09:48 PM 2/5/2011, you wrote:
>
>I have to run about 5 separate shielded wire back into a Sub D plug.
>What is the best way to connect all of the shields together as the
>have to go to only one pin. Should they soldered together and then
>only one lead to the pin.
Yes, see
http://www.aeroelectric.com/articles/pigtail/pigtail.html
Bob . . .
Message 12
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| Subject: | Re: wire squash connections |
Hi
I have Gentex H33 helmet that I would like to convert from mono to stereo
to fit the newly installed PM3000. Does anybody know if such conversion kits
exists or are there any companies that could help me out
Thanks for your help
Franz
Message 13
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| Subject: | Re: Icom A210 Wiring Q.. |
At 05:13 PM 2/5/2011, you wrote:
>Hello Bob
>
>That`s right. First I had a ordinary off/on toggle switch, but I
>found that it had to toggled both ways each time in order to
>activate or deactivate the intercom. Now I just push the switch
>once. I mounted the switch up next to the radio so either side can
>activate. For my noisy cockpit I have the intercom shut off always
>unless conversing with a passenger.. It is also possible to
>connect/disconnect on the radio but this requires finding the
>function on the menu. Switch,much more convenient.
Great data point. I which the manual was more
clear on this.
Bob . . .
Message 14
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| Subject: | Re: Low resistance measurement adapter. |
Bob, Are these shipping yet?
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Robert L.
Nuckolls, III
Sent: Wednesday, January 26, 2011 4:11 PM
Subject: Re: AeroElectric-List: Re: Low resistance measurement adapter.
At 05:20 PM 1/26/2011, you wrote:
Bob;
I'd be interested in the device.
I have orders for several. You can join them
at:
https://matronics.com/aeroelectric/Catalog/AECcatalog.html
Bob . . .
Message 15
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| Subject: | Re: terminate shielded cables in Sub D |
Brilliant!
That is exactly what i need.
That is why i like this forum
I have booked mark your site for further investigation.
Thank you
Ianrat
CH601XLB
Brisbane Australia
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=329819#329819
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