Instruction manual

Chapter 1 Introduction RIC-E3/ETH, RIC-T3/ETH Installation and Operation Manual
1-2 Overview
Figure 1-3 shows RIC-E3/ETH and RIC-T3/ETH providing a cost-effective link to the
Internet Service Provider (ISP) by using a low-cost or existing 10/100BT connection
instead of expensive E3/T3 router interface.
RIC-E3/ETH or
RIC-T3/ETH
ISP
RIC-E3/ETH or
RIC-T3/ETH
SDH/SONET
Router
E3/T310/100BT E3/T3
Central Office/POP
Figure 1-3. Cost-effective Connection to ISP
Features
RIC-E3/ETH and RIC-T3/ETH transparently connect an unframed E3 or T3 link
with a 10/100BaseT Ethernet system, utilizing the full E3/T3 bandwidth without the
heavy overhead associated with packet or cell-based technologies.
E3/T3 Interface
The E3 coax interface uses HDB3 line coding and fully complies with the
applicable ITU-T standards. The E3 interface terminates in two shielded
unbalanced BNC connectors.
The T3 coax interface uses B3ZS line coding and fully complies with the
requirements of ITU-T G.703 and G.824 standards. The T3 interface terminates in
two shielded unbalanced BNC connectors.
Ethernet Interface
The Ethernet interface of the RIC-E3/ETH and RIC-T3/ETH converters is a high
performance self-learning Ethernet bridge module, fully compatible with
IEEE 802.3/Ethernet V.2 standards.
Ethernet interface provides one LAN connection, which can be either 10BaseT
(UTP) or 100BaseT (UTP), both with VLAN tagging support.
The LAN link operates at a data rate of up to 10 Mbps for 10BaseT ports or up to
100 Mbps for 100BaseT ports.
Auto-negotiation allows plug-and-play Ethernet connection.
The Ethernet module is configured via an internal DIP switch.