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gptkbp:instanceOf
|
gptkb:digital_transmission_system
|
|
gptkbp:alternativeTo
|
gptkb:T-carrier_systems
|
|
gptkbp:developedBy
|
gptkb:European_Conference_of_Postal_and_Telecommunications_Administrations
|
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gptkbp:E1Channels
|
32 channels
|
|
gptkbp:E1SignalingChannels
|
2 channels
|
|
gptkbp:E1VoiceChannels
|
30 channels
|
|
gptkbp:frameType
|
E1: 125 microseconds
E1: 256 bits
|
|
gptkbp:introducedIn
|
1960s
|
|
gptkbp:multiplexingMethod
|
gptkb:time-division_multiplexing
|
|
gptkbp:replacedBy
|
gptkb:Synchronous_Digital_Hierarchy
fiber optic transmission
|
|
gptkbp:standardizedBy
|
gptkb:E4
gptkb:ITU-T
gptkb:E2
gptkb:E3
E1
|
|
gptkbp:usedFor
|
data transmission
voice transmission
|
|
gptkbp:usedIn
|
gptkb:public_switched_telephone_network
gptkb:Asia
gptkb:Europe
gptkb:private_branch_exchange
telecommunications
most of the world except North America
|
|
gptkbp:width
|
gptkb:E1:_2.048_Mbps
E2: 8.448 Mbps
E3: 34.368 Mbps
E4: 139.264 Mbps
|
|
gptkbp:bfsParent
|
gptkb:ITU-T_G.703
|
|
gptkbp:bfsLayer
|
7
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
E-carrier systems
|