Hello Ted,
Thought about this plug, but CEE77 fits German CEE74, so could be polarity
reversal? Some of my custom products only have line fused (customer's
requirements), so cannot allow my factory to ship affected Class I stuff
with this cord.
So when will EU/EFTA code get these plugs and
In message 8c72bcefe2534b959ba5f70e54e25...@tamuracorp.com, dated Tue,
24 Jan 2012, Brian Oconnell oconne...@tamuracorp.com writes:
Thought about this plug, but CEE77 fits German CEE74, so could be
polarity reversal? Some of my custom products only have line fused
(customer's requirements),
In Europe, Euro plug is widely used and accepted although each country may
have their own plug. As in EN standard, the product must be fitted with the
plug in the country where the product is sold. Is Euro plug legally correct
in those countries? I have learnt that it is allowed as the
Hello Brian,
You can ship Class I devices with a fuse only on one side and with a
non-polarized plug as long as the plug is a grounding plug. Mr. Woodgate is
correct in his analysis. I have had VDE specifically require the marking of IEC
60950-1 section 2.7.6 for this situation. That clause is
Can bus requires a 120 termination, and I have a client that is trying to do it
with the bare cable, and I don't know that such cable exists unless custom
built. I'm aware of impedance controlled coax but this is just your standard
hookup cable in an appropriate jacket. We terminate the line at
Hello Scott,
The Europlug is commonly accepted across Europe with the exception of the
countries that use the BS 1363 plug. You will find that a Europlug complying
with EN 50075 and IEC 60884-1 can get approvals from all of the major European
approvers. Here is one
In message
d250d01e39356a4e9cc3b4b459d665503b7b6...@ms-cda-01.advanced-input.com,
dated Tue, 24 Jan 2012, McInturff, Gary gary.mcintu...@esterline.com
writes:
Can bus requires a 120 termination, and I have a client that is trying
to do it with the bare cable, and I don't know that such cable
The cable itself does not need to be 120 Ohms; it is the resistor across CAN
High to Low at the end.
Rob Kado
Manager Sr Technical Specialist
Electromagnetic Compatibility
Chrysler
800 Chrysler Drive
CIMS 481-47-20
Auburn Hills, MI 48326
Desk: (248) 576-6915
Mobile: (248) 467-0639
Fax:
Thanks, that is exactly what I keep trying to tell them, unsuccessfully for the
moment, and wanted to check my facts.
Gary
From: Rob Kado [mailto:rk...@chrysler.com]
Sent: Tuesday, January 24, 2012 10:42 AM
To: McInturff, Gary; 'EMC-PSTC@LISTSERV.IEEE.ORG'
Subject: RE: 120 ohm CAN cable
The
One of the things that UL does ok is the recognized molder program. Removes
a huge burden from my shoulders when I buy from a supplier having a QMMY2
file. Have now had two China factories claim UL costs are at $10E6 USD per
annum, so are dropping factory recognition.
1. Is this cost reality or
Gary,
Any reflections that unacceptably degrade the CAN signal must be
avoided, which is the reason for terminations. Network cables usually
run 105 Ohms or so and reflections from cable-to-load will at 120 Ohms
be relatively low-level. You can probably DEMONSTRATE there's no need
for
The echo problem is only relevant for the highest baudrates, where the
length of the cable
and the propagation time is in the same order of magnitude as a baud
time.
If you run a CAN at 250 kHz it will run on any cable. Notice that the
susceptibility for
high frequencies may suffer !
Gert
In message cb45076e.15946%scott...@gmail.com, dated Wed, 25 Jan 2012,
Scott Xe scott...@gmail.com writes:
In Europe, Euro plug is widely used and accepted although each country
may have their own plug. As in EN standard, the product must be fitted
with the plug in the country where the
In message 1b8bc5e0eae14ba09d7b462bbd89e...@tamuracorp.com, dated Tue,
24 Jan 2012, Brian Oconnell oconne...@tamuracorp.com writes:
One of the things that UL does ok is the recognized molder program.
Removes a huge burden from my shoulders when I buy from a supplier
having a QMMY2 file. Have
TMP/SMT auditor - and the chamber control code is written in?
me - Python
TSA - snake?
me - the name of the language
TSA - named for a snake?
me - no, the Monty Python Flying Circus
TSA - are you being funny?
me - never
-
This
Brian -
The UL molder's program is a paper chase for traceability. That cost
seems unlikely to be directly attributable to charges they pay to UL,
unless something has drastically changed under the latest management.
The only way this could cost a company $10E6 is very high volume and the
time
Of course. What I'm looking at is that Gary needs to convince his
customer.
Cortland Richmond
On 1/24/2012 1444, ce-test, qualified testing bv - Gert Gremmen wrote:
The echo problem is only relevant for the highest baudrates, where the
length of the cable
and the propagation time is in
small correction/addition:
on the plug the grounding socket is additional to the side-contacts
making this plug the default plug for all Europe. I would recommend
investing in this plug (CEE 7/7 hybrid) for all 10A Class I apparatus.
In message FCA549BE3ECF9D4CB8CB8576837EA4891403EF@ZEUS.cetest.local,
dated Tue, 24 Jan 2012, ce-test, qualified testing bv - Gert Gremmen
g.grem...@cetest.nl writes:
small correction/addition:
on the plug the grounding socket is additional to the side-contacts
making this plug the default
Would you believe zip cord works pretty well ~ 90-110 ohms.
Fred Townsend
DC to Light
From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of McInturff,
Gary
Sent: Tuesday, January 24, 2012 10:16 AM
To: 'EMC-PSTC@LISTSERV.IEEE.ORG'
Subject: 120 ohm CAN cable
Can bus requires a
I've used us recognized molded vendors multiple time, they were all US and not
China or other offshore - but the cost compared to other vendors was minimal.
You're right it's a paper chase, the audit is, or at least was, on the molding
process not the part being produced. UL comes in ask what
The supposed cost is one or two orders of mag too hi for the mold cost. For
much of our stuff, we design the mold and make in North America, then ship
to factory - so this could not possibly be the cause of this monstrous
number.
Non-recognized molder = potential fire bomb.
I used to enjoy flame
A new testing requirement for some of my company's products is IEC
61000-4-16 Conducted Common Mode Disturbances. I need to test from 10 kHz
to 150 kHz.
I have a good low distortion signal source, but I need a power amplifier
to give me the signal at the test level: 30 Vrms open circuit, 50±5
Any decent quality audio power amplifier will have THD below 1% these days.
Consider using a step-up transformer such as the Solar Electronics 8810-1.
It is designed to impedance match from 1.5 Ohms to 50 Ohms, and can handle
200 Watts. That will more than suffice for your needs.
Ken Javor
Monty Python - department of arguments sketch with John Clease (spelling?)
Enjoy
http://www.youtube.com/watch?v=9F7dL41VaRk
Gary
-Original Message-
From: Brian Oconnell [mailto:oconne...@tamuracorp.com]
Sent: Tuesday, January 24, 2012 12:57 PM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject:
1% THD all the way to 150kHz? Just wondering if the older analogue amps
could do that, not to mention the
(Class D?) amplifiers of today.
Why not just put a 50 ohm resistor in series with the amplifier output.
Audio amps should have no trouble
operating into an open circuit. A 100W/ch amp
I¹m not familiar with the 61000-4-16 standard and its limit. If the limit
is flat and requires 30 Vrms oc output at 150 kHz, that would indeed be a
problem if you had to do it with an audio amplifier, but of course that
isn¹t necessary. Every lab has a 50 Ohm output amplifier that starts at 10
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