Specifications

Chapter 1 Introduction Installation and Operation Manual
1-4 Functional Description RICi-E3, RICi-T3 Ver. 1.0
1.3 Functional Description
This section provides a functional description of RICi-E3, RICi-T3 by means of a
block diagram (
Figure 1-3 ).
ETH
Switch
RS-232
CPU
E3/T3
Framer
Network Interface
Ethernet
Interface
Figure 1-3. Block Diagram of RICi-E3, RICi-T3
The RICi-E3, RICi-T3 media converter consists of the following major modules:
• Power supply – provides +5V, +3.3V voltage to the internal elements.
• E3/T3 framer – formats data for transmission and extracts data for reception
at T3 and E3 line speeds.
• CPU – controls the RICi-E3, RICi-T3 operation.
• Ethernet switch – forwards packets between the Ethernet ports and the CPU.
• User Ethernet interface – connects RICi-E3, RICi-T3 to the user LAN.
• Network E3/T3 interface – connects RICi-E3, RICi-T3 to the E3/T3 network.
• RS-232 port – communicates with the ASCII terminal.