E-carrier

GPTKB entity

Statements (33)
Predicate Object
gptkbp:instanceOf digital transmission format
gptkbp:application gptkb:ISDN
leased lines
PSTN backbone
gptkbp:channelNumber E1: 32 channels
E2: 128 channels
E3: 512 channels
E4: 2048 channels
gptkbp:contrastsWith T-carrier (used in North America)
gptkbp:dataRate gptkb:E1:_2.048_Mbps
E2: 8.448 Mbps
E3: 34.368 Mbps
E4: 139.264 Mbps
gptkbp:developedBy gptkb:European_Conference_of_Postal_and_Telecommunications_Administrations
gptkbp:frameType E1: 32 time slots
gptkbp:grapeVariety gptkb:E4
gptkb:E2
gptkb:E3
E1
https://www.w3.org/2000/01/rdf-schema#label E-carrier
gptkbp:introducedIn 1970s
gptkbp:relatedTo gptkb:T-carrier
gptkbp:replacedBy gptkb:SDH
gptkb:SONET
gptkbp:standardizedBy gptkb:ITU-T
gptkbp:type gptkb:PCM_(Pulse_Code_Modulation)
gptkbp:usedFor digital transmission of multiple telephone calls
gptkbp:usedIn gptkb:Asia
gptkb:Europe
telecommunications
most of the world except North America
gptkbp:bfsParent gptkb:G.703
gptkbp:bfsLayer 5