Modular Routers

• CSU/DSUs are removable expansion boards

Router Switching Circuitry

Port 1

CSU/DSU

(T1)

Port 2

CSU/DSU

(56 kbps)

Port 3

CSU/DSU

(T3)

Port 4

CSU/DSU

(56 kbps)

Modular Router

T1 Line

56 kbps Line

T3 Line

56 kbps Line

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