INTERNATIONAL
TELECOMMUNICATION UNION
G.957
TELECOMMUNICATION
STANDARDIZATION SECTOR
OF ITU
(06/99)
SERIES G: TRANSMISSION SYSTEMS AND MEDIA,
DIGITAL
SYSTEMS AND NETWORKS
Digital transmission systems – Digital sections and digital
line system – Digital line systems
Optical interfaces for equipments and systems
relating to the synchronous digital hierarchy
ITU-T Recommendation G.957
(Previously CCITT Recommendation)
ITU-T G-SERIES RECOMMENDATIONS
TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS
For further details, please refer to ITU-T List of Recommendations.
INTERNATIONAL TELEPHONE
CONNECTIONS AND CIRCUITS
G.100–G.199
INTERNATIONAL ANALOGUE CARRIER SYSTEM
GENERAL CHARACTERISTICS COMMON TO ALL ANALOGUE CARRIER-
TRANSMISSION SYSTEMS
G.200–G.299
INDIVIDUAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE
SYSTEMS
ON METALLIC LINES
G.300–G.399
GENERAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE
SYSTEMS ON RADIO-RELAY OR SATELLITE LINKS AND INTERCONNECTION
WITH METALLIC LINES
G.400–G.449
COORDINATION OF RADIOTELEPHONY AND
LINE TELEPHONY
G.450–G.499
TESTING EQUIPMENTS
TRANSMISSION MEDIA CHARACTERISTICS
G.600–G.699
DIGITAL TRANSMISSION SYSTEMS
TERMINAL
EQUIPMENTS
G.700–G.799
DIGITAL NETWORKS
G.800–G.899
DIGITAL SECTIONS AND DIGITAL LINE SYSTEM
G.900–G.999
General
G.900–G.909
Parameters for optical fibre cable systems
G.910–G.919
Digital sections at hierarchical bit rates based on a bit rate of 2048 kbit/s
G.920–G.929
Digital line transmission systems on cable at
non-hierarchical bit rates
G.930–G.939
Digital line systems provided by FDM transmission bearers
G.940–G.949
