Re: Surge Applications

2002-01-18 Thread Paolo Gemma

There are no ETSI standards dealing with surge on antenna port.
The only body that are working on this item is ITU-T sg5 but are only start 
to study the problem.
THis is normally understand not a immunity test but a survival test 
(resistibility) and I know to different way: one is inject a High pulse 
current on the shield of cable with al cable  long 10 .50 meters, the 
other is inject a high voltage pulse on the inner of the cable long some meter.

Ciao
Paolo   At 17:24 1/16/02 +, John Woodgate wrote:


I read in !emc-pstc that Spencer, David H david.spen...@usa.xerox.com
wrote (in 8992668F1C5ED211B4420008C74C364905234D88@USA0200MS1) about
'Surge Applications', on Wed, 16 Jan 2002:
Using the following references: IEC 61000-4-5:1995  and EN55024:1998.

I have to test a piece of ITE equipment which has an receive antenna (the
antenna is connected to the EUT using 50 ohm coaxial cable).  Is the EUT's
antenna cable subject to surge test per table 2 of EN55024?
Note 2 specifies only cables which connect to outdoor cables.
This cable does that.
Table 2's title is Immunity, signal ports and telecommunications ports  I
feel that an antenna fits under this category.

If so  (moving on from EN55024)

How do I perform the test?
Figures 13 and 14 in IEC61000-4-5 illustrates the test set up for shielded
lines.
However, there really only seems to be one EUT. I suspect I could consider
the antenna as EUT 2 and the actual unit as EUT 1.  In that case the testing
is relatively straight forward.

I consider that to be correct; the antenna is EUT 2.

If this all sounds correct, then this is just a sanity check.  If I'm
incorrect or missed something...could you point me in the right direction.

I think what you may have missed is that the IEC61000-4-5 surge test may
not be appropriate for application to an antenna port. I would look at
some ETSI immunity standards to see what tests are applied to antenna
ports.
--
Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk
After swimming across the Hellespont, I felt like a Hero.

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--
Paolo Gemma
Siemens Information and Communication Network spa
Microwave Networks MW RD NSA EMC
SS Padana sup. KM 158 20060 Cassina de'Pecchi (MI) Italy
phone +39 02 9526 6587fax +39 02 9526 6203
mobile +39 348 3690185
e-mail paolo.ge...@icn.siemens.it

--



RE: Surge Applications

2002-01-16 Thread richwoods

Sorry, I forgot to mention that the receiver is also subject to the
appropriate ETSI spectrum managment standard. Parameters may include
adjacent channel selectivity, blocking and spurious emissions. For example,
there are three standards for Short Range Devices: EN300220, EN300330 and
EN 300440. There are a large number of other standards that apply to other
types of receivers.

Good luck!

Richard Woods
Sensormatic Electronics
Tyco International



-Original Message-
From: WOODS, RICHARD 
Sent: Wednesday, January 16, 2002 12:49 PM
To: emc-p...@majordomo.ieee.org
Subject: RE: Surge Applications


David, this may be some bad news for you.

Receivers are subject to the the requirements of RTTE Directive (see the
note in clause 3.1 of EN55022).

Your product may also be subject to the appropriate ETSI EMC standard per
clause 3.1 of EN55022. If so, the standards would be EN301489-1 plus the
particular part that applies to your product. However, if the particular
part does not exist, you would use ETS300683. These standards are available
for free download at the ETSI web site. Note that these standards also
reference EN 61000-4-5, but you have to follow the levels and acceptance
criteria specified in the ETSI standard.

Richard Woods
Sensormatic Electronics
Tyco International


-Original Message-
From: Spencer, David H [mailto:david.spen...@usa.xerox.com]
Sent: Wednesday, January 16, 2002 9:36 AM
To: emc-p...@majordomo.ieee.org
Subject: Surge Applications



Using the following references: IEC 61000-4-5:1995  and EN55024:1998.

I have to test a piece of ITE equipment which has an receive antenna (the
antenna is connected to the EUT using 50 ohm coaxial cable).  Is the EUT's
antenna cable subject to surge test per table 2 of EN55024?
Note 2 specifies only cables which connect to outdoor cables. 
This cable does that.
Table 2's title is Immunity, signal ports and telecommunications ports  I
feel that an antenna fits under this category.

If so  (moving on from EN55024)

How do I perform the test?
Figures 13 and 14 in IEC61000-4-5 illustrates the test set up for shielded
lines.
However, there really only seems to be one EUT. I suspect I could consider
the antenna as EUT 2 and the actual unit as EUT 1.  In that case the testing
is relatively straight forward.

If this all sounds correct, then this is just a sanity check.  If I'm
incorrect or missed something...could you point me in the right direction.

Thanks

best regards
David Spencer


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RE: Surge Applications

2002-01-16 Thread richwoods

David, this may be some bad news for you.

Receivers are subject to the the requirements of RTTE Directive (see the
note in clause 3.1 of EN55022).

Your product may also be subject to the appropriate ETSI EMC standard per
clause 3.1 of EN55022. If so, the standards would be EN301489-1 plus the
particular part that applies to your product. However, if the particular
part does not exist, you would use ETS300683. These standards are available
for free download at the ETSI web site. Note that these standards also
reference EN 61000-4-5, but you have to follow the levels and acceptance
criteria specified in the ETSI standard.

Richard Woods
Sensormatic Electronics
Tyco International


-Original Message-
From: Spencer, David H [mailto:david.spen...@usa.xerox.com]
Sent: Wednesday, January 16, 2002 9:36 AM
To: emc-p...@majordomo.ieee.org
Subject: Surge Applications



Using the following references: IEC 61000-4-5:1995  and EN55024:1998.

I have to test a piece of ITE equipment which has an receive antenna (the
antenna is connected to the EUT using 50 ohm coaxial cable).  Is the EUT's
antenna cable subject to surge test per table 2 of EN55024?
Note 2 specifies only cables which connect to outdoor cables. 
This cable does that.
Table 2's title is Immunity, signal ports and telecommunications ports  I
feel that an antenna fits under this category.

If so  (moving on from EN55024)

How do I perform the test?
Figures 13 and 14 in IEC61000-4-5 illustrates the test set up for shielded
lines.
However, there really only seems to be one EUT. I suspect I could consider
the antenna as EUT 2 and the actual unit as EUT 1.  In that case the testing
is relatively straight forward.

If this all sounds correct, then this is just a sanity check.  If I'm
incorrect or missed something...could you point me in the right direction.

Thanks

best regards
David Spencer


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Re: Surge Applications

2002-01-16 Thread John Woodgate

I read in !emc-pstc that Spencer, David H david.spen...@usa.xerox.com
wrote (in 8992668F1C5ED211B4420008C74C364905234D88@USA0200MS1) about
'Surge Applications', on Wed, 16 Jan 2002:
Using the following references: IEC 61000-4-5:1995  and EN55024:1998.

I have to test a piece of ITE equipment which has an receive antenna (the
antenna is connected to the EUT using 50 ohm coaxial cable).  Is the EUT's
antenna cable subject to surge test per table 2 of EN55024?
Note 2 specifies only cables which connect to outdoor cables. 
This cable does that.
Table 2's title is Immunity, signal ports and telecommunications ports  I
feel that an antenna fits under this category.

If so  (moving on from EN55024)

How do I perform the test?
Figures 13 and 14 in IEC61000-4-5 illustrates the test set up for shielded
lines.
However, there really only seems to be one EUT. I suspect I could consider
the antenna as EUT 2 and the actual unit as EUT 1.  In that case the testing
is relatively straight forward.

I consider that to be correct; the antenna is EUT 2. 

If this all sounds correct, then this is just a sanity check.  If I'm
incorrect or missed something...could you point me in the right direction.

I think what you may have missed is that the IEC61000-4-5 surge test may
not be appropriate for application to an antenna port. I would look at
some ETSI immunity standards to see what tests are applied to antenna
ports.
-- 
Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk 
After swimming across the Hellespont, I felt like a Hero. 

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RE: Surge Applications

2002-01-16 Thread Dan Kinney (A)

Dave,
Everything seems reasonable and right to me.  I would do it just as you have
stated but I have never worked with a system of this sort (RF port and
antenna).
Dan Kinney
Horner APG

 -Original Message-
 From: Spencer, David H [SMTP:david.spen...@usa.xerox.com]
 Sent: Wednesday, January 16, 2002 9:36 AM
 To:   emc-p...@majordomo.ieee.org
 Subject:  Surge Applications
 
 
 Using the following references: IEC 61000-4-5:1995  and EN55024:1998.
 
 I have to test a piece of ITE equipment which has an receive antenna (the
 antenna is connected to the EUT using 50 ohm coaxial cable).  Is the EUT's
 antenna cable subject to surge test per table 2 of EN55024?
 Note 2 specifies only cables which connect to outdoor cables. 
 This cable does that.
 Table 2's title is Immunity, signal ports and telecommunications ports
 I
 feel that an antenna fits under this category.
 
 If so  (moving on from EN55024)
 
 How do I perform the test?
 Figures 13 and 14 in IEC61000-4-5 illustrates the test set up for shielded
 lines.
 However, there really only seems to be one EUT. I suspect I could consider
 the antenna as EUT 2 and the actual unit as EUT 1.  In that case the
 testing
 is relatively straight forward.
 
 If this all sounds correct, then this is just a sanity check.  If I'm
 incorrect or missed something...could you point me in the right direction.
 
 Thanks
 
 best regards
 David Spencer
 
 
 ---
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