ÖNORM EN 300659-2 V 1.3.1:2001-04

Действует

Access and Terminals (AT) - Analogue access to the Public Switched Telephone Network (PSTN) - Subscriber line protocol over the local loop for display (and related) services - Part 2: Off-hook data transmission

Описание Изменения Ссылки Версии

The present document specifies the subscriber line protocol for the support of PSTN display services at Local Exchange
in "off-hook" state by using asynchronous voice-band FSK signalling. The present document is a complement of part 1
that deals with "on-hook data transmission associated or not associated with ringing". The present document contains
only the differences and extensions to EN 300 659-1 [1].

ICS

33.040.35 Telephone. Including Public Switched Telephone Networks (PSTN), Private Telecommunication Networks (PTN) and Private Integrated Service Networks (PISN) / Телефонные сети. Включая коммутируемые телефонные сети общего пользования (PSTN), корпоративные телекоммуникационные сети (PTN) и сети с интеграцией служб частного пользования (PISN)