Sincere apologies for my previous misleading email, the draft I-CTR places relaxation on TBR 21 to the following extent:- Annex IV 1. Range of feeding conditions.
The following relaxation applies to requirements of the standard referred to in Annex I (TBR21) in clauses 4.6.2, 4.7 (including all applicable subclauses) and 4.8 (including all applicable subclauses). The resistor of 3 200 Ohm shall be replaced by a resistor of 2 800 Ohm. 2. Range of feeding conditions for terminal equipment not intended to be connected to any PSTN supplying a loop current of less than 18 mA. The following relaxation applies to requirements of the standard referred to in Annex I in clauses 4.6.2, 4.7 (including all applicable subclauses) and 4.8 (including all applicable subclauses). For terminal equipment declared by the manufacturer for use only on lines providing a loop current of 18 mA or greater, the resistor of 2 800 Ohm shall be replaced by a resistor of 2 300 Ohm. Best regards, Edward Edward Fitzgerald International Approvals Consultant Direct Tel. : +44 1202 20 09 22 GSM Tel. : +44 4685 33 100 European Technology Services Specialist Global Compliance Consultancy Offices in Australia, Canada and the UK. http://www.ets-tele.com/tics
