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9 Cards in this Set

  • Front
  • Back
  • 3rd side (hint)
CSU/DSU
channel service unit/data service unit; used to clock the link.
demarc
short for demarkation point at which the telco's responsibility is on one side and the customer's responsibility is on the other.
PTT
"public telephone and telegraph companies
now refer as service provider."
CPE
"customer premises equipment refers to devices that are at the customer site
e.g. CSU/DSU and router."
DCE
"Data communications equipment
e.g. CSU
DTE
"data terminal equipment
e.g. router
PCM
"pulse code modulation
converting analog voice (8000 times per sec
DS1
"digital signal level 1 or single T1 line that supports 24 DS0s
plus an 8-kbps overhead channel= 1.544 Mbps."
Name the five steps of encapsulation in the correct order.
data, segment, packet, frames, bits