Kevin

I'm not aware of any such requirements in the I-CTR3 standards or CTR3. The 
majority of the events you list would be covered by testing to a suitable 
safety standard (EN60950) for compliance with the Low Voltage Directive anyway.

Regards

Ben Wrigley
Senior Approvals Specialist, KTL

---------- Original message from Kevin Richardson ----------

> Hi all,
> 
> I am trying to determine if the EU ISDN standards for basic rate access
> include any "Fail-Safe Operation" requirements and if so, are they in any way
> similar to those required by the Australian ISDN standard TS031.
> 
> TS031, clause 5.1.3 on Fail-Safe Operations and in particular clause 5.1.3.1,
> states:
> 
> CE shall not cause harm or damage to a PTN if any of the following events, or
> a consequential event, occurs:
> 
> a)  failure or partial failure of any single mechanical or electrical
> component in the CE; or
> 
> b)  failure or partial failure of any power supply (including a.c. mains
> voltage and local battery) to the CE; or
> 
> c)  incorrect manual operation of the CE; or
> 
> d)  operation of the CE outside the range of operating voltage and
> environmental conditions specified by the manufacturer.
> 
> Any feed back would be appreciated.  Thank you.
> 
> **  Please also Note:
> 
> My phone and fax number have changed slightly - ie the area code is now "02"
> instead of "043" and the "43" has been added to the number.  See new numbers
> below.
> 
> Best regards,
> Kevin Richardson                                        Ph:    02-4329-4070
> Stanimore Pty Limited                           Fax:   02-4328-5639 "The
> Technology Requirements Specialists"               Int'l: +61-2-432x-xxxx
> Email:  Internet:  [email protected]          Compuserve: 100356,374

------------------------------

Ben Wrigley
Senior Approvals Specialist

KTL
Newlands Science Park
Inglemire Lane
Hull
HU6 7TQ
UK

Phone:  +44 (0)1482 801801
Fax:    +44 (0)1482 801806
Web:    http://www.ktl.co.uk
Email:  [email protected]

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