THG TIM 2015, Technical Manual

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TIM 2015 Technical Manual v1 (February 2018) Page 12
Obsolescence warning — and reassurance
A crucial component used in TIM 2015 is the MH 88422-3 integrated circuit manufactured first by Mitel and subsequently by Zarlink. This
handles the interface between an analogue telephone line and the electronics that play out the voice messages.
It was last made in the 1990s and supplies are now hard to find, particularly in one-off quantities. However, there is no equivalent product
nor anything even vaguely comparable produced currently, which is why we were forced to employ it again in TIM 2015. We have secured
supplies to make at least 70 speaking clocks but must warn do-it-yourself constructors to
ensure that you have one of these devices before
starting work . Supplies will not last forever.
Recycling
At the end of its serviceable life, this product should not be treated as household or general waste . It should instead be handed over to the
applicable collection point for the recycling of electrical and electronic equipment, or returned to the supplier for disposal .
RoHS regulations conformity
Although the Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2008 (‘the RoHS
Regulations’) precludes the use of lead-based solder in newly made electrical products, Annexe C to the official RoHS Guidance Notes
nevertheless permits “the use of lead-based solders to be used in IT and telecommunications network infrastructure equipment. This
exemption does not cover end-terminating products such as PCs or telephones.” TIM 2015 is intended for use as a network infrastructure
element and users are hereby informed that small quantities of tin-lead solder are used in the product. For this reason it is recommended
that TIM 2015 is not used where people unaware of the hazards of lead poisoning might gain access to it.
CE status
Several of the more specialist components used in TIM 2015 are Chinese Exports.