Insys ISDN Terminal Adapter 4.0 11-02-01-02-00.015 Manuel D’Utilisation
Codes de produits
11-02-01-02-00.015
10
Operating Manual INSYS ISDN TA 4.0
Version 2.02 – 01.04
The S0 bus consists of a transmitting and a receiver circuit. The data stream of
144kbit/s in the transmitting and receiver circuit divides into 2 utilizable channels (B
channel, in each case 64 kbit/s) and 1 signaling channel (D channel, 16kbit/s).
144kbit/s in the transmitting and receiver circuit divides into 2 utilizable channels (B
channel, in each case 64 kbit/s) and 1 signaling channel (D channel, 16kbit/s).
4.2 Primary Rate Interface
The primary rate interface is intended for the supply of larger ISDN ISPBXs (integrated
services private branch exchanges), which have a large requirement of transmission
channels.
services private branch exchanges), which have a large requirement of transmission
channels.
The primary rate interface, abbreviated PMxA or PRI, has 30 utilizable channels as PBX
connection.
The connection is made by two conventional two-wire lines and a primary multiplex
network termination (PMx NT). A ISPBX is connected to this NT using the so-called S2M
port. The data transmission rate at the primary multiplex port (30 utilizable channels +
1 data channel) is 2 Mbit/s.
Each utilizable channel (B channel) uses a transmission speed of 64 kbit/s. Additionally
to the utilizable channels a so-called data channel (D channel, see D channel) exists,
which is used for the signaling information. Moreover additional synchronization in-
formation is transmitted.
connection.
The connection is made by two conventional two-wire lines and a primary multiplex
network termination (PMx NT). A ISPBX is connected to this NT using the so-called S2M
port. The data transmission rate at the primary multiplex port (30 utilizable channels +
1 data channel) is 2 Mbit/s.
Each utilizable channel (B channel) uses a transmission speed of 64 kbit/s. Additionally
to the utilizable channels a so-called data channel (D channel, see D channel) exists,
which is used for the signaling information. Moreover additional synchronization in-
formation is transmitted.