Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [compliance]

The tag has no usage guidance.

0
votes
1answer
58 views

Is there a colour standard for mains 'signal' wiring?

Hello I am currently wiring a mains powered chassis. I have relays which use mains voltage levels for controlling other mains voltage relays. I would like to differentiate between the signals by using ...
2
votes
1answer
32 views

how to confirm that PCB Ethernet layout does not affect perfornace

short version: - How to test if ethernet traces on PCB causing any distortions to the signal? - Is it possible to generate ethernet signals from a windows computer and measure them with an ...
0
votes
3answers
89 views

Disable RC oscillator in ATmega328 for FCC compliance

With respect to the topic below, I was trying to find where in the AVR documentation does it say the 8 MHz RC internal oscillator is "disabled" when CKSEL is selected to a different source? I am ...
1
vote
3answers
94 views

Is UL approval only required for the power supply?

Suppose a mains powered device has a PSU in the assembly that has a detachable cable to the mains. Is it just the PSU that needs to be UL approved/compliant? Is the whole device therefore UL-compliant ...
1
vote
2answers
73 views

Does US have standards for smart power outlets?

I am hobbyist and I am trying to build Wi-Fi power outlet. Right now it is personal project but I want to bring it to a mass production if I will succeed. I have never built such things before and I ...
0
votes
0answers
25 views

Power spectral density FCC vs CE 300 328 difference

Both FCC and CE 300 328 has power spectral density test, may be with little difference. We bought 2.4ghz radio which has FCC pass report with 30dbm power and its pass the power spectral density test. ...
4
votes
3answers
78 views

Compliance Testing Strategies

How do people / companies deal with compliance testing (CE, UL, FCC, etc.) what I would call "platform-oriented and modular" products? The idea being that a family of products might exist, where a ...
8
votes
1answer
194 views

Are Ethernet (copper 10/100/1000) compliance tests mandatory?

The IEEE 802.3, for Gigabit Ethernet, and supposedly the ANSI INCITS 263*, for the Regular and Fast Ethernet, have lists of signal quality requirements, which are generally tested using the so-called ...
2
votes
1answer
241 views

Switching high voltage with consistent risetime

I'm trying to design an IEC61000-4-4 compliant EFT generator for in-house use, which is based on following schematic: I've been able to determine all values for all components, And I've been able to ...
0
votes
1answer
264 views

Site similar to fccid.io for Europe

The FCCID website is great to see what frequencies are used by different systems. The FCC is of course limited to the US/North America. Is there a similar site for Europe or other regions?
-1
votes
1answer
152 views

I cant seem to figure out FCC or any testing for that matter

this website has a wealth of information and after browsing for quite a while I cant seem to answer my question. I am interested in selling an LED PCB light in the US. It operates on 24v1amp DC ...
1
vote
1answer
73 views

USB2.0 EH with USB type-C in accordance with USB specifications? Reasoning?

We would like to implement a slim USB host to store/retrieve small files to/from an USB-flash-drive (with Type-C Plug). We would like to implement an embedded (targeted) host according to the On-the-...
0
votes
3answers
1k views

IEC 61000 vs IEC 61326? Electromagnetic compatibility(EMC)

I have been working on a product which requires EMC tested based on an IEC Standard. The product application is measurement and monitoring of various Solar String Parameters like voltage, current and ...
0
votes
2answers
176 views

Clearance through pcb

I've become fairly familiar with the clearance and creepage requirements of UL/IEC/etc 60950, 60730 and derived/related standards. I've just realised, though, that they only refer to distances through ...
1
vote
1answer
94 views

Sequencing modes for FCC “Intentional Radiator” test

I'm FCC certifying as an "intentional radiator" a product that uses a custom antenna and off the shelf Broadcom WiFi module. The module has an antenna port, so single-modular and limited single-...
1
vote
1answer
88 views

Does a name patch on a dissipative ESD smock also have to be ESD compliant?

Does a name patch on a ESD smock also have to be ESD compliant?
13
votes
4answers
3k views

At what level of complexity should I consider UL listing my widget?

I am interested in making a widget to sell, but it will probably have a small market and small volume. At what level of complexity should I consider UL listing (or otherwise certifying) my widget? I ...
2
votes
3answers
382 views

USB 2.0 droop testing

In the checklist for USB 2.0 compliance there is a requirement for maximum droop at a load inrush current of 7.5 A. What I don't understand is how to test this. I might be blind, but the standard only ...
17
votes
1answer
2k views

What is this symbol? (assumed compliance mark like CE / FCC)

So Raspberry Pi have a new model out (the Raspberry Pi Zero W). Having taken a look at the photos, I see that on the reverse, where the CE and FCC compliance marks are shown, there is another symbol. ...
0
votes
1answer
116 views

60335-1 27.5 Test - Am I doing this right?

I work at company producing household appliances, and I'm looking into a way to test compliance with part 27.5 of the NEN-EN-IEC 60335-1 standard (which is derived from IEC 60335-1). It states (...
0
votes
1answer
337 views

How is the equation for Compliance voltage?

Here is the link for a current mirror discussion. I am trying to understand the meaning of compliance voltage equation and how it can be dervied: https://wiki.analog.com/university/courses/electronics/...
2
votes
0answers
188 views

SATA compliance test

Is there anyone familiar with the SATA interface compliance? I'm curious about the testing method. For TX test, there are PHY/TSG/OOB test items. And, there are BIST-L and BIST-TSA mode defined in ...
2
votes
0answers
51 views

Checks for AC Mains Product Compliance

First of, I apologize if this type of question has been answered before (I did have a search). We are a small startup about to go through manufacturing stage of a product. I would like to ensure that ...
18
votes
4answers
1k views

Electronics System Standards Compliance: Certification, Testing & Verification

Please note: this question has to do with the technical compliance aspects of the consumer electronics indsutry, and as such, I believe is within scope for this site. This question is about compliance,...
2
votes
1answer
535 views

20H rule EMI/EMC effectiveness

I have been doing some research into the effectiveness of applying the 20H rule to 4 layer PCB designs and have been finding some very conflicting information. Some sources (including a few IEEE ...
3
votes
2answers
496 views

Does a computer assembled only from CE marked subassemblies still need CE testing?

The FCC (bulletin 62) mentions an exception allowing someone to assemble and sell computers without the normal FCC testing requirement "as long as they start with an FCC-authorized system and add to ...
4
votes
1answer
1k views

Bluetooth Compliance and Qualification

It seems that all Bluetooth-enabled devices require the Bluetooth SIG Qualification in order to be marketable, but it isn't clear why it's needed so I'm hoping someone here has more experience. I've ...
2
votes
1answer
55 views

Component change following design freeze

Our device has been through DVT and compliance testing. Both DVT and compliance are expensive and time consuming processes. The compliance includes a comprehensive set of RF tests. I want to change ...
1
vote
1answer
660 views

CE and FCC compliance

I was browsing and found some very informative answers on this site. They didn't specifically answer my question, so I decided to Register and ask ... We are importing digital cameras from Europe. ...
1
vote
2answers
2k views

EMC considerations for driving a solenoid via PWM over a long cable

We're designing a circuit which essentially has the topology shown below. We're driving an inductive load (24V, 3.8Ohm solenoid - max avg current = 2A, but peak current can be 6.3A) using PWM. ...
1
vote
2answers
160 views

What's the most effective way to prevent EM noise from coupling onto a cable and radiating out?

I've a PCB radiating noise inside a metal enclosure (this is Product 1 from this question here). Unfortunately, I can't change the PCB itself, so I'm having to tackle the problem by other means. I ...
6
votes
4answers
2k views

How to fix EMC problems for existing designs?

I'm going to be looking at a few products that have failed EMC radiated emissions testing and will need to apply fixes in order to make them pass (unfortunately, in these cases, two of the designs can'...
2
votes
1answer
82 views

What's the correlation between spectral graphs produced using near field probes and ones produced using an antenna?

I've been looking at getting some equipment for EMC-precompliance on a budget (about £5k). I understand that I can get a spectrum analyser with some EMI options and some near-field probes (about £2k) ...
3
votes
1answer
683 views

EMI suppression low frequency

I'm dealing with a PWM generator which drives a load at 12V with pretty high currents (5-10A) The PWM frequency is in the band of 100-200 Hz. Which is the best choice and right configuration of ...
1
vote
2answers
854 views

Crimp terminal insulation of exposed leads

I'm dealing with an equipment which has a lot of internal wiring. The system is powered in 12V but the wires carry a good amount of current (in excess of 10A). I need to connect different units with ...
3
votes
1answer
601 views

Power supply CE compliancy requirements

I'm dealing with an electrical equipment which should be compliant to the CE low voltage directive (LVD), following the EN60950 standard. The equipment is connected to the mains (220V) through an ...
0
votes
2answers
244 views

Does C-1602A-1YN LCD use the HD44780 controller?

I am new to using PIC microcontrollers and electronics in general. I have been reading a tutorial on how to interface a PIC with a HD44780 compliant LCD. As I have been shopping for a LCD I have been ...
3
votes
1answer
1k views

CE certification: battery-powered LED lights

There are lots of products on the market that are LED lights which don't all seem to carry CE markings. I'm looking at designing little ornamental things with embedded LED lighting, and trying to work ...