RFL Communications 21 Sub-MUX Manual do Utilizador descarregar pdf (Página 21)

Solutions for an evolving world.

Channel Banks cont.

• T1 Channel Bank (IMUX, Focus)

• Operates at 1.54 Mbps

• Fiber or Electrical connections,

• Sometimes T1 connect will be used with DSU (digital service unit) at 64 Kbps

• Microwave

• Operates at roughly 1.0 gigahertz (GHz) to 30 GHz

• Large towers to point to point radios

• Much of the industry use point to point radios.

• Sonnet (Synchronous Optical Network)

• Operates at 155.520 megabits per second (Mbit/s).

• packet-oriented data transmission

• Ethernet is a family of computer networking technologies for

local area (LAN) and larger networks.

• Systems communicating over Ethernet divide a stream of data into shorter pieces

called frames. Each frame contains source and destination addresses and

error-checking data so that damaged data can be detected and re-transmitted.

• Operates at 10 Mbit/s, 100 Mbit/s, and 1 Gbit/s, respectively

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RFL Communications 21 Sub-MUX Manual do Utilizador Página 21