Transmission Interface Handling Ds1 1544 Kbit/S - Ericsson CME 20 R6.1 Reference Manual

33 Transmission Interface Handling DS1 1544
kbit/s
This function specification covers RBS functions for layer 1
communications on A-bis.
The function Layer 1 Termination terminates a 1544 kbit/s DS1 PCM
line.
The function Supervision of Transmission faults detects faults in the
transmission interface.
The function Supervision of Transmission Quality monitors the quality
of the transmission.
33.1 References
Transmission references :
•
•
•
33.2 Concepts
ESF
EN/LZT 123 2697 R5A
1998-08-13

Transmission Interface Handling DS1 1544 kbit/s

ANSI T1.403-1989
AT&T T1.5 Service (TR 62411) Dec. 1990
Bellcore TR-NWT-000499 Apr. 1992
© Ericsson Radio Systems AB
— All Rights Reserved —
Extended Superframe Format.
The content and structure of the F-bit is
described in Table 24 on page 200. This
table is included to ease the understanding
of the functions: Layer 1 Termination, and
Supervision of Transmission Faults.
199 (306)